./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt --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 09f813c788ce76f2fed6ff9e53c54c81ca842bfc ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:13:48,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:13:48,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:13:48,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:13:48,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:13:48,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:13:48,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:13:48,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:13:48,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:13:48,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:13:48,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:13:48,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:13:48,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:13:48,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:13:48,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:13:48,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:13:48,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:13:48,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:13:48,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:13:48,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:13:48,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:13:48,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:13:48,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:13:48,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:13:48,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:13:48,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:13:48,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:13:48,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:13:48,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:13:48,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:13:48,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:13:48,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:13:48,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:13:48,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:13:48,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:13:48,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:13:48,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:13:48,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:13:48,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:13:48,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:13:48,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:13:48,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:13:48,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:13:48,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:13:48,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:13:48,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:13:48,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:13:48,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:13:48,358 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:13:48,358 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:13:48,358 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:13:48,358 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:13:48,359 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:13:48,360 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:13:48,360 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:13:48,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:13:48,360 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:13:48,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:13:48,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:13:48,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:13:48,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:13:48,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:13:48,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:13:48,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:13:48,362 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:13:48,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:13:48,363 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:13:48,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:13:48,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:13:48,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:13:48,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:13:48,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:13:48,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:13:48,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:13:48,368 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:13:48,368 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_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09f813c788ce76f2fed6ff9e53c54c81ca842bfc [2021-10-13 00:13:48,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:13:48,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:13:48,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:13:48,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:13:48,653 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:13:48,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-10-13 00:13:48,730 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/data/9ca09d485/3ef8e8e659a34d38908ae6d4a2e6e8f9/FLAG7bce4a156 [2021-10-13 00:13:49,240 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:13:49,241 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-10-13 00:13:49,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/data/9ca09d485/3ef8e8e659a34d38908ae6d4a2e6e8f9/FLAG7bce4a156 [2021-10-13 00:13:49,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/data/9ca09d485/3ef8e8e659a34d38908ae6d4a2e6e8f9 [2021-10-13 00:13:49,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:13:49,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:13:49,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:13:49,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:13:49,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:13:49,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cdddf66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49, skipping insertion in model container [2021-10-13 00:13:49,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:13:49,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:13:49,783 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_dde49894-8a5a-4bd8-84b4-0ebec896839e/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[423,436] [2021-10-13 00:13:49,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:13:49,844 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:13:49,858 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_dde49894-8a5a-4bd8-84b4-0ebec896839e/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[423,436] [2021-10-13 00:13:49,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:13:49,904 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:13:49,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49 WrapperNode [2021-10-13 00:13:49,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:13:49,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:13:49,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:13:49,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:13:49,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:13:49,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:13:49,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:13:49,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:13:49,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:49,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:50,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:13:50,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:13:50,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:13:50,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:13:50,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (1/1) ... [2021-10-13 00:13:50,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:50,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:50,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:50,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:13:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:13:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:13:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:13:50,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:13:50,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:13:50,596 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-13 00:13:50,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:13:50 BoogieIcfgContainer [2021-10-13 00:13:50,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:13:50,600 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:13:50,601 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:13:50,604 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:13:50,605 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:13:50,605 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:13:49" (1/3) ... [2021-10-13 00:13:50,607 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@134fb11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:13:50, skipping insertion in model container [2021-10-13 00:13:50,607 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:13:50,608 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:49" (2/3) ... [2021-10-13 00:13:50,608 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@134fb11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:13:50, skipping insertion in model container [2021-10-13 00:13:50,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:13:50,608 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:13:50" (3/3) ... [2021-10-13 00:13:50,610 INFO L389 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2021-10-13 00:13:50,661 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:13:50,661 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:13:50,661 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:13:50,661 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:13:50,662 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:13:50,662 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:13:50,662 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:13:50,662 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:13:50,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:50,712 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2021-10-13 00:13:50,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:50,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:50,720 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:13:50,720 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:13:50,720 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:13:50,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:50,729 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2021-10-13 00:13:50,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:50,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:50,730 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:13:50,730 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:13:50,738 INFO L791 eck$LassoCheckResult]: Stem: 56#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); 40#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_~sa~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_~sa~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; 28#L21true assume !(0 == base2flt_~m % 4294967296); 18#L27true assume !(base2flt_~m % 4294967296 < 16777216); 35#L49-2true [2021-10-13 00:13:50,739 INFO L793 eck$LassoCheckResult]: Loop: 35#L49-2true assume !false; 41#L50true assume base2flt_~m % 4294967296 >= 33554432; 34#L51true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 35#L49-2true [2021-10-13 00:13:50,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:50,745 INFO L82 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-10-13 00:13:50,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:50,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430066195] [2021-10-13 00:13:50,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:50,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:51,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:51,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:13:51,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430066195] [2021-10-13 00:13:51,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430066195] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:51,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:51,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:13:51,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797765018] [2021-10-13 00:13:51,103 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:13:51,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:51,108 INFO L82 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-10-13 00:13:51,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:51,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361432954] [2021-10-13 00:13:51,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:51,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:51,144 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:51,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:51,274 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:51,274 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:51,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:51,275 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:51,275 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:13:51,275 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:51,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:51,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:51,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2021-10-13 00:13:51,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:51,277 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:51,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:51,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:51,442 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:51,443 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:13:51,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:51,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:51,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:51,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:13:51,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:51,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:51,541 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:13:51,542 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:13:51,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:51,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:51,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:51,553 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:51,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:51,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:51,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:13:51,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:51,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:51,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:51,611 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:51,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:13:51,628 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:13:51,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:51,679 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:13:51,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:51,688 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:51,688 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:51,689 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:51,689 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:51,689 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:13:51,689 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:51,689 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:51,689 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:51,689 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2021-10-13 00:13:51,689 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:51,689 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:51,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:51,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:51,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:51,870 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:13:51,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:51,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:51,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:51,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:51,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:51,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:51,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:51,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:51,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:51,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:51,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:51,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:13:51,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:13:51,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:51,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:51,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:51,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:51,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:51,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:51,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:51,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:51,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:51,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:51,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:51,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:51,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:13:51,990 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:13:52,023 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:13:52,024 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:13:52,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:52,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:52,030 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:52,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:13:52,063 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:13:52,063 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:13:52,063 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:13:52,064 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-13 00:13:52,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:52,095 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:13:52,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:52,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:13:52,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:52,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:52,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:52,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:52,206 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:13:52,208 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:52,280 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 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 204 states and 344 transitions. Complement of second has 6 states. [2021-10-13 00:13:52,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:13:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:52,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 228 transitions. [2021-10-13 00:13:52,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-13 00:13:52,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:52,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 00:13:52,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:52,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-13 00:13:52,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:52,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204 states and 344 transitions. [2021-10-13 00:13:52,320 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2021-10-13 00:13:52,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204 states to 79 states and 120 transitions. [2021-10-13 00:13:52,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2021-10-13 00:13:52,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2021-10-13 00:13:52,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 120 transitions. [2021-10-13 00:13:52,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:52,333 INFO L681 BuchiCegarLoop]: Abstraction has 79 states and 120 transitions. [2021-10-13 00:13:52,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 120 transitions. [2021-10-13 00:13:52,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2021-10-13 00:13:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.588235294117647) internal successors, (108), 67 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 108 transitions. [2021-10-13 00:13:52,368 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 108 transitions. [2021-10-13 00:13:52,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:13:52,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:13:52,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:13:52,373 INFO L87 Difference]: Start difference. First operand 68 states and 108 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:52,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:52,447 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2021-10-13 00:13:52,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:13:52,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2021-10-13 00:13:52,450 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-13 00:13:52,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 48 transitions. [2021-10-13 00:13:52,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-10-13 00:13:52,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-10-13 00:13:52,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 48 transitions. [2021-10-13 00:13:52,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:13:52,453 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-13 00:13:52,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 48 transitions. [2021-10-13 00:13:52,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-13 00:13:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:52,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-10-13 00:13:52,457 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-13 00:13:52,457 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-13 00:13:52,457 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:13:52,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 48 transitions. [2021-10-13 00:13:52,461 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-13 00:13:52,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:52,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:52,465 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:52,466 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:13:52,467 INFO L791 eck$LassoCheckResult]: Stem: 451#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); 436#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_~sa~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_~sa~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; 437#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 430#L71 base2flt_#res := base2flt_~__retres4~0; 431#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 444#L21-1 assume !(0 == base2flt_~m % 4294967296); 445#L27-1 assume !(base2flt_~m % 4294967296 < 16777216); 432#L49-5 [2021-10-13 00:13:52,467 INFO L793 eck$LassoCheckResult]: Loop: 432#L49-5 assume !false; 433#L50-1 assume base2flt_~m % 4294967296 >= 33554432; 434#L51-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 432#L49-5 [2021-10-13 00:13:52,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:52,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-10-13 00:13:52,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:52,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833865412] [2021-10-13 00:13:52,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:52,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:52,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:52,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:13:52,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833865412] [2021-10-13 00:13:52,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833865412] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:52,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:52,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:13:52,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582385804] [2021-10-13 00:13:52,569 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:13:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-10-13 00:13:52,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:52,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352796259] [2021-10-13 00:13:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:52,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:52,581 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:52,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:52,623 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:52,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:52,624 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:52,624 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:52,624 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:13:52,624 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:52,624 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:52,624 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:52,624 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2021-10-13 00:13:52,624 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:52,624 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:52,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:52,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:52,751 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:52,751 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:13:52,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:52,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:52,758 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:52,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:52,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:52,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:13:52,827 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:13:52,827 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:13:52,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:52,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:52,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:52,835 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:52,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:52,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:52,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:13:52,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:52,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:52,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:52,908 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:52,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:13:52,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:52,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:13:52,968 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:13:52,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:52,974 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:52,974 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:52,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:52,975 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:52,975 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:13:52,975 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:52,975 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:52,975 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:52,975 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2021-10-13 00:13:52,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:52,975 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:52,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:52,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:53,083 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:53,083 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:13:53,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:53,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:53,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:53,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:13:53,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:53,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:53,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:53,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:53,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:53,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:53,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:53,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:53,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:13:53,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-10-13 00:13:53,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:53,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:53,167 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:53,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:13:53,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:53,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:53,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:53,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:53,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:53,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:53,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:53,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:53,193 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:13:53,195 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:13:53,196 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:13:53,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:53,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:53,197 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:53,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:13:53,201 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:13:53,201 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:13:53,202 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:13:53,202 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-13 00:13:53,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:53,226 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:13:53,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:53,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:13:53,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:53,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:53,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:53,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:53,344 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:13:53,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:53,366 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 85 transitions. Complement of second has 5 states. [2021-10-13 00:13:53,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:13:53,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:53,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2021-10-13 00:13:53,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 00:13:53,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:53,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 00:13:53,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:53,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-13 00:13:53,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:53,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 85 transitions. [2021-10-13 00:13:53,374 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-10-13 00:13:53,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 60 states and 81 transitions. [2021-10-13 00:13:53,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-13 00:13:53,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-10-13 00:13:53,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2021-10-13 00:13:53,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:53,379 INFO L681 BuchiCegarLoop]: Abstraction has 60 states and 81 transitions. [2021-10-13 00:13:53,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2021-10-13 00:13:53,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2021-10-13 00:13:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.368421052631579) internal successors, (52), 37 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2021-10-13 00:13:53,388 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 52 transitions. [2021-10-13 00:13:53,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:13:53,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:13:53,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:13:53,390 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:53,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:53,443 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2021-10-13 00:13:53,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:13:53,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 46 transitions. [2021-10-13 00:13:53,451 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 00:13:53,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 46 transitions. [2021-10-13 00:13:53,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-13 00:13:53,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-13 00:13:53,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-10-13 00:13:53,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:13:53,457 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-10-13 00:13:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-10-13 00:13:53,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-10-13 00:13:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2021-10-13 00:13:53,460 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-10-13 00:13:53,460 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-10-13 00:13:53,460 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:13:53,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2021-10-13 00:13:53,461 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 00:13:53,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:53,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:53,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:53,464 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:13:53,464 INFO L791 eck$LassoCheckResult]: Stem: 667#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); 653#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_~sa~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_~sa~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; 654#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 651#L71 base2flt_#res := base2flt_~__retres4~0; 652#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 662#L21-1 assume !(0 == base2flt_~m % 4294967296); 663#L27-1 assume base2flt_~m % 4294967296 < 16777216; 664#L39-3 [2021-10-13 00:13:53,464 INFO L793 eck$LassoCheckResult]: Loop: 664#L39-3 assume !false; 665#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 672#L39-2 assume base2flt_~m % 4294967296 < 16777216; 664#L39-3 [2021-10-13 00:13:53,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:53,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-10-13 00:13:53,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:53,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185128378] [2021-10-13 00:13:53,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:53,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:53,527 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:53,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:53,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:53,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:53,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:53,581 INFO L82 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-10-13 00:13:53,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:53,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860933799] [2021-10-13 00:13:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:53,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:53,596 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:53,604 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:53,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:53,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-10-13 00:13:53,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:53,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64336143] [2021-10-13 00:13:53,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:53,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:53,632 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:53,675 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:53,703 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:53,703 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:53,703 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:53,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:53,704 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:13:53,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:53,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:53,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:53,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2021-10-13 00:13:53,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:53,704 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:53,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:53,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:53,772 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:53,772 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:13:53,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:53,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:53,774 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:53,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:53,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:53,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:13:53,829 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:13:53,830 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:13:53,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:53,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:53,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:53,834 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:53,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:53,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:53,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:13:53,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:53,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:53,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:53,894 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:53,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:13:53,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:13:53,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:53,943 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:13:53,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:53,946 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:53,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:53,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:53,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:53,946 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:13:53,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:53,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:53,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:53,947 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2021-10-13 00:13:53,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:53,947 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:53,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:53,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:54,053 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:54,053 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:13:54,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:54,055 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:54,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:54,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:13:54,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:54,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:54,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:54,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:54,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:54,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:54,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:54,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:13:54,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:54,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:54,112 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:54,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:13:54,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:54,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:54,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:54,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:54,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:54,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:54,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:54,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:54,130 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:13:54,132 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:13:54,132 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:13:54,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:54,133 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:54,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:13:54,135 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:13:54,135 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:13:54,135 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:13:54,135 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-13 00:13:54,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:54,156 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:13:54,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:54,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:13:54,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:54,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:54,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:54,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:54,303 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:13:54,303 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:54,317 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 50 transitions. Complement of second has 5 states. [2021-10-13 00:13:54,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:13:54,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:54,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-10-13 00:13:54,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 00:13:54,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:54,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 00:13:54,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:54,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-13 00:13:54,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:54,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2021-10-13 00:13:54,321 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 00:13:54,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 36 states and 46 transitions. [2021-10-13 00:13:54,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-13 00:13:54,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-13 00:13:54,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-10-13 00:13:54,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:54,324 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-10-13 00:13:54,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-10-13 00:13:54,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-10-13 00:13:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-10-13 00:13:54,334 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-10-13 00:13:54,334 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-10-13 00:13:54,334 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:13:54,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2021-10-13 00:13:54,335 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 00:13:54,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:54,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:54,336 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:54,336 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:13:54,337 INFO L791 eck$LassoCheckResult]: Stem: 791#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); 775#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_~sa~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_~sa~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; 776#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 773#L71 base2flt_#res := base2flt_~__retres4~0; 774#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 782#L21-1 assume !(0 == base2flt_~m % 4294967296); 783#L27-1 assume base2flt_~m % 4294967296 < 16777216; 799#L39-3 assume !false; 787#L30-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 795#L71-1 base2flt_#res := base2flt_~__retres4~0; 765#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 766#L21-2 assume !(0 == base2flt_~m % 4294967296); 779#L27-2 assume !(base2flt_~m % 4294967296 < 16777216); 780#L49-8 [2021-10-13 00:13:54,337 INFO L793 eck$LassoCheckResult]: Loop: 780#L49-8 assume !false; 770#L50-2 assume base2flt_~m % 4294967296 >= 33554432; 772#L51-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 780#L49-8 [2021-10-13 00:13:54,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:54,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1421262134, now seen corresponding path program 1 times [2021-10-13 00:13:54,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:54,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005845582] [2021-10-13 00:13:54,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:54,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:54,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:54,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:13:54,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005845582] [2021-10-13 00:13:54,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005845582] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:54,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:54,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:13:54,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387936683] [2021-10-13 00:13:54,398 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:13:54,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:54,399 INFO L82 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-10-13 00:13:54,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:54,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023607055] [2021-10-13 00:13:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:54,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:54,419 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:54,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:54,461 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:54,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:54,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:54,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:54,462 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:13:54,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:54,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:54,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2021-10-13 00:13:54,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:54,463 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:54,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:54,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:54,535 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:54,535 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:13:54,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:54,539 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:54,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:13:54,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:54,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:54,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:54,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:54,609 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:54,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:13:54,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:13:54,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:54,655 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:13:54,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:54,658 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:54,658 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:54,658 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:54,658 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:54,658 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:13:54,658 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,658 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:54,659 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:54,659 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2021-10-13 00:13:54,659 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:54,659 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:54,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:54,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:54,746 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:54,746 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:13:54,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:54,747 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:54,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:54,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:54,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:54,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:54,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:54,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:54,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:54,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:54,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:13:54,786 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:13:54,788 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:13:54,788 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:13:54,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:54,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:54,789 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:54,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:13:54,794 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:13:54,795 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:13:54,795 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:13:54,795 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-13 00:13:54,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:54,827 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:13:54,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:54,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:13:54,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:54,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:54,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:54,926 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:13:54,926 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:54,941 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 65 transitions. Complement of second has 5 states. [2021-10-13 00:13:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:13:54,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:54,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2021-10-13 00:13:54,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-13 00:13:54,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:54,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 16 letters. Loop has 3 letters. [2021-10-13 00:13:54,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:54,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 6 letters. [2021-10-13 00:13:54,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:54,943 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2021-10-13 00:13:54,944 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 00:13:54,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 49 states and 61 transitions. [2021-10-13 00:13:54,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-13 00:13:54,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2021-10-13 00:13:54,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2021-10-13 00:13:54,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:54,946 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2021-10-13 00:13:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2021-10-13 00:13:54,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2021-10-13 00:13:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 37 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2021-10-13 00:13:54,949 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2021-10-13 00:13:54,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:13:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:13:54,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:13:54,950 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:54,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:54,967 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-10-13 00:13:54,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:13:54,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2021-10-13 00:13:54,968 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 00:13:54,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 49 transitions. [2021-10-13 00:13:54,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-10-13 00:13:54,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-10-13 00:13:54,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2021-10-13 00:13:54,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:54,970 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-10-13 00:13:54,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2021-10-13 00:13:54,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-10-13 00:13:54,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2021-10-13 00:13:54,972 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-10-13 00:13:54,972 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-10-13 00:13:54,973 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:13:54,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2021-10-13 00:13:54,973 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 00:13:54,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:54,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:54,974 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:54,974 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:13:54,974 INFO L791 eck$LassoCheckResult]: Stem: 1025#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); 1011#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_~sa~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_~sa~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; 1012#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1007#L71 base2flt_#res := base2flt_~__retres4~0; 1008#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1016#L21-1 assume !(0 == base2flt_~m % 4294967296); 1017#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1021#L39-3 assume !false; 1022#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1031#L39-2 assume !(base2flt_~m % 4294967296 < 16777216); 1028#L65-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1029#L71-1 base2flt_#res := base2flt_~__retres4~0; 997#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 998#L21-2 assume !(0 == base2flt_~m % 4294967296); 1013#L27-2 assume base2flt_~m % 4294967296 < 16777216; 1015#L39-5 [2021-10-13 00:13:54,975 INFO L793 eck$LassoCheckResult]: Loop: 1015#L39-5 assume !false; 999#L30-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1001#L39-4 assume base2flt_~m % 4294967296 < 16777216; 1015#L39-5 [2021-10-13 00:13:54,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:54,975 INFO L82 PathProgramCache]: Analyzing trace with hash 793003697, now seen corresponding path program 1 times [2021-10-13 00:13:54,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:54,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512689999] [2021-10-13 00:13:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:54,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:55,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:13:55,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512689999] [2021-10-13 00:13:55,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512689999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:55,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:55,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:13:55,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129680768] [2021-10-13 00:13:55,025 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:13:55,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:55,026 INFO L82 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-10-13 00:13:55,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:55,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687289222] [2021-10-13 00:13:55,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:55,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:55,030 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:55,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:55,058 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:55,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:55,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:55,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:55,058 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:13:55,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:55,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:55,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:55,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2021-10-13 00:13:55,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:55,059 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:55,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:55,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:55,154 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:55,154 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:13:55,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:55,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:55,156 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:55,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:55,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:55,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:55,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:13:55,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:55,214 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:13:55,214 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:13:55,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:55,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:55,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:55,217 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:55,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:13:55,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:55,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:55,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:55,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:55,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:55,254 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:55,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:13:55,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:13:55,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:55,288 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:13:55,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-13 00:13:55,290 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:55,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:55,290 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:55,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:55,290 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:13:55,290 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:55,290 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:55,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:55,291 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2021-10-13 00:13:55,291 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:55,291 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:55,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:55,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:55,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:55,369 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:13:55,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:55,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:55,371 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:55,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:55,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:55,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:55,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:55,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:55,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:55,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:55,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:55,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:13:55,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:13:55,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:55,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:55,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:55,446 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:55,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:55,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:55,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:55,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:55,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:55,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:55,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:55,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:55,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:13:55,474 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:13:55,483 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:13:55,483 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:13:55,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:55,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:55,487 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:55,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:13:55,497 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:13:55,497 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:13:55,497 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:13:55,497 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-13 00:13:55,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:55,517 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:13:55,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:55,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:13:55,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:55,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:55,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:55,656 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:13:55,656 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:55,671 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 69 transitions. Complement of second has 5 states. [2021-10-13 00:13:55,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:13:55,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2021-10-13 00:13:55,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-13 00:13:55,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:55,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-13 00:13:55,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:55,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-13 00:13:55,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:55,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 69 transitions. [2021-10-13 00:13:55,676 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 00:13:55,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 53 states and 65 transitions. [2021-10-13 00:13:55,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-13 00:13:55,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-13 00:13:55,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 65 transitions. [2021-10-13 00:13:55,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:55,678 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 65 transitions. [2021-10-13 00:13:55,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 65 transitions. [2021-10-13 00:13:55,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2021-10-13 00:13:55,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:55,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2021-10-13 00:13:55,681 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-10-13 00:13:55,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:13:55,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:13:55,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:13:55,682 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:55,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:55,732 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2021-10-13 00:13:55,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:13:55,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 61 transitions. [2021-10-13 00:13:55,733 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:13:55,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 61 transitions. [2021-10-13 00:13:55,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-13 00:13:55,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-13 00:13:55,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2021-10-13 00:13:55,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:55,737 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2021-10-13 00:13:55,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2021-10-13 00:13:55,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-10-13 00:13:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:55,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2021-10-13 00:13:55,741 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-10-13 00:13:55,741 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-10-13 00:13:55,741 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:13:55,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 55 transitions. [2021-10-13 00:13:55,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:13:55,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:55,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:55,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:55,745 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:13:55,745 INFO L791 eck$LassoCheckResult]: Stem: 1288#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); 1269#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_~sa~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_~sa~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; 1270#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1267#L71 base2flt_#res := base2flt_~__retres4~0; 1268#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1278#L21-1 assume !(0 == base2flt_~m % 4294967296); 1279#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1297#L39-3 assume !false; 1293#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1294#L39-2 assume base2flt_~m % 4294967296 < 16777216; 1283#L39-3 assume !false; 1284#L30-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 1292#L71-1 base2flt_#res := base2flt_~__retres4~0; 1256#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1257#L21-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1259#L71-2 base2flt_#res := base2flt_~__retres4~0; 1271#L72-2 main_#t~ret13 := base2flt_#res;main_~a~0 := main_#t~ret13;havoc main_#t~ret13;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1272#L21-3 assume !(0 == base2flt_~m % 4294967296); 1287#L27-3 assume !(base2flt_~m % 4294967296 < 16777216); 1290#L49-11 [2021-10-13 00:13:55,754 INFO L793 eck$LassoCheckResult]: Loop: 1290#L49-11 assume !false; 1295#L50-3 assume base2flt_~m % 4294967296 >= 33554432; 1289#L51-3 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 1290#L49-11 [2021-10-13 00:13:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:55,755 INFO L82 PathProgramCache]: Analyzing trace with hash -399436914, now seen corresponding path program 1 times [2021-10-13 00:13:55,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:55,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079391119] [2021-10-13 00:13:55,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:55,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:55,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:13:55,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079391119] [2021-10-13 00:13:55,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079391119] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:13:55,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387673109] [2021-10-13 00:13:55,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:55,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:13:55,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:55,819 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:13:55,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 00:13:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:55,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:55,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:55,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387673109] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:13:55,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:13:55,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-13 00:13:55,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439789506] [2021-10-13 00:13:55,961 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:13:55,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:55,961 INFO L82 PathProgramCache]: Analyzing trace with hash 262289, now seen corresponding path program 1 times [2021-10-13 00:13:55,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:55,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542357100] [2021-10-13 00:13:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:55,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:55,967 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:55,972 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:56,005 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:56,005 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:56,005 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:56,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:56,006 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:13:56,006 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:56,006 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:56,006 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:56,006 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2021-10-13 00:13:56,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:56,006 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:56,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:56,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:56,106 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:56,106 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:13:56,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:56,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:56,108 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:56,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:56,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:56,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:13:56,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:56,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:56,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:56,163 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:56,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:13:56,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:13:56,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:56,195 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:13:56,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:56,202 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:56,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:56,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:56,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:56,202 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:13:56,202 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:56,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:56,202 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:56,202 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2021-10-13 00:13:56,202 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:56,202 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:56,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:56,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:56,282 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:56,282 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:13:56,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:56,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:56,284 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:56,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:56,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:56,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:56,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:56,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:56,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:56,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:56,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:56,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:13:56,318 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:13:56,320 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:13:56,320 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:13:56,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:56,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:56,322 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:56,323 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:13:56,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:13:56,324 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:13:56,324 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-13 00:13:56,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:13:56,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:56,356 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:13:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:56,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:13:56,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:56,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:56,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:56,467 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:13:56,467 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:56,475 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 59 transitions. Complement of second has 4 states. [2021-10-13 00:13:56,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:13:56,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2021-10-13 00:13:56,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 3 letters. [2021-10-13 00:13:56,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:56,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 22 letters. Loop has 3 letters. [2021-10-13 00:13:56,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:56,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 6 letters. [2021-10-13 00:13:56,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:56,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-10-13 00:13:56,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:13:56,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 40 states and 51 transitions. [2021-10-13 00:13:56,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-13 00:13:56,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-13 00:13:56,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 51 transitions. [2021-10-13 00:13:56,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:56,479 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-10-13 00:13:56,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 51 transitions. [2021-10-13 00:13:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-13 00:13:56,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.275) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:56,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-10-13 00:13:56,482 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-10-13 00:13:56,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:13:56,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:13:56,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:13:56,483 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:56,521 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-13 00:13:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:13:56,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-13 00:13:56,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:13:56,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 44 states and 54 transitions. [2021-10-13 00:13:56,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-10-13 00:13:56,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-10-13 00:13:56,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 54 transitions. [2021-10-13 00:13:56,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:13:56,524 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 54 transitions. [2021-10-13 00:13:56,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 54 transitions. [2021-10-13 00:13:56,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2021-10-13 00:13:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:56,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-10-13 00:13:56,527 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-10-13 00:13:56,527 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-10-13 00:13:56,528 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:13:56,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2021-10-13 00:13:56,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:13:56,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:56,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:56,529 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:56,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:13:56,530 INFO L791 eck$LassoCheckResult]: Stem: 1603#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); 1586#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_~sa~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_~sa~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; 1587#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1582#L71 base2flt_#res := base2flt_~__retres4~0; 1583#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1595#L21-1 assume !(0 == base2flt_~m % 4294967296); 1596#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1598#L39-3 assume !false; 1599#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1607#L39-2 assume base2flt_~m % 4294967296 < 16777216; 1600#L39-3 assume !false; 1601#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1610#L39-2 assume !(base2flt_~m % 4294967296 < 16777216); 1604#L65-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1605#L71-1 base2flt_#res := base2flt_~__retres4~0; 1571#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1572#L21-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1574#L71-2 base2flt_#res := base2flt_~__retres4~0; 1584#L72-2 main_#t~ret13 := base2flt_#res;main_~a~0 := main_#t~ret13;havoc main_#t~ret13;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1585#L21-3 assume !(0 == base2flt_~m % 4294967296); 1602#L27-3 assume base2flt_~m % 4294967296 < 16777216; 1608#L39-7 [2021-10-13 00:13:56,530 INFO L793 eck$LassoCheckResult]: Loop: 1608#L39-7 assume !false; 1593#L30-3 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1594#L39-6 assume base2flt_~m % 4294967296 < 16777216; 1608#L39-7 [2021-10-13 00:13:56,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:56,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1485728147, now seen corresponding path program 1 times [2021-10-13 00:13:56,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:56,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442138456] [2021-10-13 00:13:56,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:56,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:56,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:56,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:13:56,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442138456] [2021-10-13 00:13:56,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442138456] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:13:56,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927745382] [2021-10-13 00:13:56,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:56,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:13:56,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:56,597 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:13:56,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-13 00:13:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:56,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:13:56,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:56,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:56,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:56,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927745382] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:13:56,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:13:56,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-13 00:13:56,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521994979] [2021-10-13 00:13:56,951 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:13:56,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:56,951 INFO L82 PathProgramCache]: Analyzing trace with hash 236530, now seen corresponding path program 1 times [2021-10-13 00:13:56,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:56,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681510361] [2021-10-13 00:13:56,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:56,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:56,972 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:56,982 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:57,018 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:57,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:57,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:57,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:57,019 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:13:57,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:57,019 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:57,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:57,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2021-10-13 00:13:57,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:57,020 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:57,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:57,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:57,082 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:57,083 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:13:57,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:57,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:57,084 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:57,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:57,091 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:57,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:13:57,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:13:57,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:13:57,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:57,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:57,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:57,134 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:57,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:13:57,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:13:57,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:57,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-13 00:13:57,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:57,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:57,167 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:57,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:13:57,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:13:57,168 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:13:57,212 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:13:57,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:57,218 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:13:57,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:13:57,218 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:13:57,218 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:13:57,218 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:13:57,218 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:57,218 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:13:57,218 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:13:57,218 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2021-10-13 00:13:57,218 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:13:57,218 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:13:57,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:57,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:13:57,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:13:57,290 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:13:57,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:57,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:57,291 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:57,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:57,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:13:57,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:57,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:57,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:57,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:57,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:57,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:57,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:57,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:13:57,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-13 00:13:57,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:57,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:57,329 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:57,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:13:57,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:13:57,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:13:57,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:13:57,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:13:57,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:13:57,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:13:57,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:13:57,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:13:57,343 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:13:57,345 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:13:57,345 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:13:57,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:57,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:57,347 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:57,348 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:13:57,348 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:13:57,348 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:13:57,348 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-13 00:13:57,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:13:57,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:57,372 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:13:57,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:57,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:13:57,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:57,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:57,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:57,526 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:13:57,526 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:57,533 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 4 states. [2021-10-13 00:13:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:13:57,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:57,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2021-10-13 00:13:57,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 3 letters. [2021-10-13 00:13:57,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:57,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-13 00:13:57,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:57,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 6 letters. [2021-10-13 00:13:57,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:13:57,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-10-13 00:13:57,537 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:13:57,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2021-10-13 00:13:57,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:13:57,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:13:57,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:13:57,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:13:57,538 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:13:57,538 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:13:57,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:13:57,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:13:57,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:13:57,539 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:57,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:57,539 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-13 00:13:57,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:13:57,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-13 00:13:57,540 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:13:57,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:13:57,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:13:57,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:13:57,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:13:57,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:13:57,541 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:13:57,541 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:13:57,541 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:13:57,541 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:13:57,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:13:57,541 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:13:57,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:13:57,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:13:57 BoogieIcfgContainer [2021-10-13 00:13:57,549 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:13:57,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:13:57,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:13:57,550 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:13:57,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:13:50" (3/4) ... [2021-10-13 00:13:57,554 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:13:57,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:13:57,556 INFO L168 Benchmark]: Toolchain (without parser) took 7997.00 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 84.3 MB in the beginning and 83.9 MB in the end (delta: 356.5 kB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:13:57,556 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 123.7 MB. Free memory is still 100.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:13:57,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.76 ms. Allocated memory is still 123.7 MB. Free memory was 84.1 MB in the beginning and 96.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:13:57,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.15 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 94.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:13:57,558 INFO L168 Benchmark]: Boogie Preprocessor took 49.35 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 92.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:13:57,558 INFO L168 Benchmark]: RCFGBuilder took 590.73 ms. Allocated memory is still 123.7 MB. Free memory was 92.7 MB in the beginning and 77.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:13:57,559 INFO L168 Benchmark]: BuchiAutomizer took 6948.44 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 77.0 MB in the beginning and 83.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:13:57,559 INFO L168 Benchmark]: Witness Printer took 4.62 ms. Allocated memory is still 148.9 MB. Free memory is still 83.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:13:57,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 123.7 MB. Free memory is still 100.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.76 ms. Allocated memory is still 123.7 MB. Free memory was 84.1 MB in the beginning and 96.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.15 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 94.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.35 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 92.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 590.73 ms. Allocated memory is still 123.7 MB. Free memory was 92.7 MB in the beginning and 77.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6948.44 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 77.0 MB in the beginning and 83.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.62 ms. Allocated memory is still 148.9 MB. Free memory is still 83.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (6 trivial, 7 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 253 + -2 * e and consists of 4 locations. One deterministic module has affine ranking function 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 5.3s. Construction of modules took 0.1s. 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 62.9ms 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: 528 SDtfs, 344 SDslu, 161 SDs, 0 SdLazy, 162 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 181.4ms 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: 51ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:13:57,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:57,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-13 00:13:58,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-10-13 00:13:58,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde49894-8a5a-4bd8-84b4-0ebec896839e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...