./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/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_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/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_e800a517-932f-414d-925c-f12b0ab1c892/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 d3e65a9c88991657ab2059827ecd5dfb9aad85be ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:45:40,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:45:40,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:45:40,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:45:40,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:45:40,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:45:40,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:45:40,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:45:40,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:45:40,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:45:40,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:45:40,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:45:40,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:45:40,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:45:40,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:45:40,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:45:40,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:45:40,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:45:40,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:45:40,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:45:40,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:45:40,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:45:40,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:45:40,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:45:40,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:45:40,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:45:40,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:45:40,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:45:40,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:45:40,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:45:40,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:45:40,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:45:40,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:45:40,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:45:40,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:45:40,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:45:40,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:45:40,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:45:40,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:45:40,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:45:40,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:45:40,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:45:40,450 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:45:40,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:45:40,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:45:40,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:45:40,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:45:40,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:45:40,454 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:45:40,454 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:45:40,454 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:45:40,455 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:45:40,455 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:45:40,455 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:45:40,456 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:45:40,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:45:40,456 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:45:40,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:45:40,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:45:40,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:45:40,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:45:40,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:45:40,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:45:40,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:45:40,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:45:40,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:45:40,460 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:45:40,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:45:40,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:45:40,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:45:40,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:45:40,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:45:40,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:45:40,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:45:40,463 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:45:40,463 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_e800a517-932f-414d-925c-f12b0ab1c892/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e65a9c88991657ab2059827ecd5dfb9aad85be [2021-10-13 00:45:40,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:45:40,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:45:40,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:45:40,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:45:40,810 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:45:40,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-10-13 00:45:40,908 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/data/7a72432b5/a2fc11611a4e469b96a33d142f0c8275/FLAG67275ca7e [2021-10-13 00:45:41,682 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:45:41,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-10-13 00:45:41,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/data/7a72432b5/a2fc11611a4e469b96a33d142f0c8275/FLAG67275ca7e [2021-10-13 00:45:41,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/data/7a72432b5/a2fc11611a4e469b96a33d142f0c8275 [2021-10-13 00:45:41,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:45:41,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:45:41,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:45:41,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:45:41,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:45:41,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:45:41" (1/1) ... [2021-10-13 00:45:41,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79cd5913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:41, skipping insertion in model container [2021-10-13 00:45:41,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:45:41" (1/1) ... [2021-10-13 00:45:41,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:45:42,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:45:42,247 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_e800a517-932f-414d-925c-f12b0ab1c892/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[450,463] [2021-10-13 00:45:42,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:45:42,331 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:45:42,357 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_e800a517-932f-414d-925c-f12b0ab1c892/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[450,463] [2021-10-13 00:45:42,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:45:42,476 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:45:42,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42 WrapperNode [2021-10-13 00:45:42,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:45:42,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:45:42,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:45:42,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:45:42,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:45:42,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:45:42,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:45:42,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:45:42,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:45:42,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:45:42,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:45:42,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:45:42,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (1/1) ... [2021-10-13 00:45:42,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:42,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:42,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:42,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:45:42,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:45:42,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:45:42,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:45:42,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:45:43,345 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:45:43,345 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-10-13 00:45:43,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:45:43 BoogieIcfgContainer [2021-10-13 00:45:43,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:45:43,349 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:45:43,349 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:45:43,355 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:45:43,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:45:43,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:45:41" (1/3) ... [2021-10-13 00:45:43,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b43e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:45:43, skipping insertion in model container [2021-10-13 00:45:43,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:45:43,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:42" (2/3) ... [2021-10-13 00:45:43,361 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b43e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:45:43, skipping insertion in model container [2021-10-13 00:45:43,362 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:45:43,362 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:45:43" (3/3) ... [2021-10-13 00:45:43,364 INFO L389 chiAutomizerObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2021-10-13 00:45:43,442 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:45:43,442 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:45:43,442 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:45:43,443 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:45:43,443 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:45:43,443 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:45:43,443 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:45:43,444 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:45:43,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 89 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 88 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:43,521 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-13 00:45:43,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:43,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:43,529 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:45:43,529 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:45:43,529 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:45:43,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 89 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 88 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:43,539 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-13 00:45:43,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:43,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:43,540 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:45:43,540 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:45:43,548 INFO L791 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 48#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 54#L22true assume !(0 == base2flt_~m % 4294967296); 32#L28true assume !(base2flt_~m % 4294967296 < 16777216); 42#L50-2true [2021-10-13 00:45:43,548 INFO L793 eck$LassoCheckResult]: Loop: 42#L50-2true assume !false; 45#L51true assume base2flt_~m % 4294967296 >= 33554432; 87#L52true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 42#L50-2true [2021-10-13 00:45:43,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:43,556 INFO L82 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-10-13 00:45:43,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:43,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273079491] [2021-10-13 00:45:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:43,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:45:43,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:45:43,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273079491] [2021-10-13 00:45:43,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273079491] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:45:43,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:45:43,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:45:43,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755096432] [2021-10-13 00:45:43,807 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:45:43,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:43,808 INFO L82 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-10-13 00:45:43,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:43,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433784790] [2021-10-13 00:45:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:43,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:43,824 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:43,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:43,939 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:43,940 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:43,940 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:43,940 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:43,940 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:45:43,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:43,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:43,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:43,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2021-10-13 00:45:43,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:43,942 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:43,968 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 00:45:43,979 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 00:45:44,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:44,113 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:45:44,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:44,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:44,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:44,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:45:44,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:44,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:45:44,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:44,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:44,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:44,226 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:44,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:45:44,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:44,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:45:44,301 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:45:44,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:44,309 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:44,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:44,310 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:44,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:44,310 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:45:44,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:44,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:44,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:44,311 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2021-10-13 00:45:44,311 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:44,311 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:44,312 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 00:45:44,325 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 00:45:44,476 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:44,482 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:45:44,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:44,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:44,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:44,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:45:44,514 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 00:45:44,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:45:44,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:45:44,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:45:44,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:45:44,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:45:44,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:45:44,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:45:44,532 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:45:44,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:45:44,539 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:45:44,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:44,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:44,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:44,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:45:44,551 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:45:44,552 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:45:44,552 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:45:44,553 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 00:45:44,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:44,580 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:45:44,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:44,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:45:44,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:44,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:45:44,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:44,736 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 00:45:44,757 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 00:45:44,762 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 89 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 88 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:44,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 89 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 88 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 262 states and 422 transitions. Complement of second has 6 states. [2021-10-13 00:45:44,905 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 00:45:44,908 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 00:45:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2021-10-13 00:45:44,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 276 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-13 00:45:44,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:44,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 276 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 00:45:44,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:44,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 276 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-13 00:45:44,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:44,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 422 transitions. [2021-10-13 00:45:44,941 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-10-13 00:45:44,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 57 states and 82 transitions. [2021-10-13 00:45:44,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-10-13 00:45:44,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-10-13 00:45:44,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2021-10-13 00:45:44,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:45:44,951 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-10-13 00:45:44,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2021-10-13 00:45:44,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2021-10-13 00:45:44,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 45 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2021-10-13 00:45:44,994 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2021-10-13 00:45:44,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:45:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:45:44,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:45:45,000 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:45,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:45:45,048 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-10-13 00:45:45,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:45:45,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-10-13 00:45:45,050 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 00:45:45,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2021-10-13 00:45:45,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-13 00:45:45,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-13 00:45:45,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-10-13 00:45:45,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:45:45,052 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-13 00:45:45,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-10-13 00:45:45,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-13 00:45:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-10-13 00:45:45,060 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-13 00:45:45,060 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-13 00:45:45,060 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:45:45,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2021-10-13 00:45:45,061 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 00:45:45,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:45,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:45,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:45,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:45:45,063 INFO L791 eck$LassoCheckResult]: Stem: 470#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 471#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 478#L22 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 484#L72 base2flt_#res := base2flt_~__retres4~0; 488#L73 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 472#L22-1 assume !(0 == base2flt_~m % 4294967296); 473#L28-1 assume !(base2flt_~m % 4294967296 < 16777216); 485#L50-5 [2021-10-13 00:45:45,063 INFO L793 eck$LassoCheckResult]: Loop: 485#L50-5 assume !false; 479#L51-1 assume base2flt_~m % 4294967296 >= 33554432; 480#L52-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 485#L50-5 [2021-10-13 00:45:45,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:45,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-10-13 00:45:45,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:45,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60518788] [2021-10-13 00:45:45,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:45,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:45,127 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:45,156 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:45,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:45,157 INFO L82 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-10-13 00:45:45,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:45,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89962993] [2021-10-13 00:45:45,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:45,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:45,168 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:45,178 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:45,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2021-10-13 00:45:45,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:45,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850876326] [2021-10-13 00:45:45,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:45,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:45,203 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:45,247 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:45,309 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:45,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:45,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:45,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:45,310 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:45:45,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:45,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:45,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:45,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2021-10-13 00:45:45,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:45,311 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:45,315 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 00:45:45,330 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 00:45:45,451 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:45,452 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:45:45,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:45,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:45,454 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:45,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:45:45,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:45,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:45:45,566 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:45:45,566 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 00:45:45,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:45,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:45,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:45,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:45,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:45:45,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:45,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:45:45,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:45,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:45,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:45,665 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:45,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:45:45,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:45,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:45:45,749 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:45:45,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:45,757 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:45,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:45,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:45,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:45,758 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:45:45,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:45,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:45,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:45,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2021-10-13 00:45:45,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:45,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:45,760 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 00:45:45,770 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 00:45:45,869 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:45,869 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:45:45,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:45,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:45,872 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:45,882 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 00:45:45,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:45:45,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:45:45,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:45:45,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:45:45,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:45:45,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:45:45,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:45:45,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:45:45,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:45:45,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:45,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:45,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:45,961 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:45,968 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 00:45:45,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:45:45,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:45:45,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:45:45,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:45:45,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:45:45,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:45:45,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:45:45,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:45:46,000 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:45:46,004 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:45:46,004 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:45:46,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:46,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:46,006 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:46,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:45:46,013 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:45:46,013 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:45:46,013 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:45:46,013 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 00:45:46,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-13 00:45:46,048 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:45:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:46,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:45:46,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:46,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:45:46,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:46,153 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 00:45:46,154 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 00:45:46,154 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:46,168 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 51 transitions. Complement of second has 5 states. [2021-10-13 00:45:46,169 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 00:45:46,169 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 00:45:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-10-13 00:45:46,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 00:45:46,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:46,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 00:45:46,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:46,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-13 00:45:46,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:46,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-10-13 00:45:46,172 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 00:45:46,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2021-10-13 00:45:46,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-10-13 00:45:46,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-10-13 00:45:46,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2021-10-13 00:45:46,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:45:46,174 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-10-13 00:45:46,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2021-10-13 00:45:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2021-10-13 00:45:46,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:46,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-10-13 00:45:46,178 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-13 00:45:46,178 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-13 00:45:46,178 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:45:46,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-10-13 00:45:46,179 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 00:45:46,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:46,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:46,179 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:46,180 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:45:46,180 INFO L791 eck$LassoCheckResult]: Stem: 585#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 586#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 592#L22 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 599#L72 base2flt_#res := base2flt_~__retres4~0; 606#L73 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 587#L22-1 assume !(0 == base2flt_~m % 4294967296); 588#L28-1 assume base2flt_~m % 4294967296 < 16777216; 600#L40-3 [2021-10-13 00:45:46,180 INFO L793 eck$LassoCheckResult]: Loop: 600#L40-3 assume !false; 601#L31-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 604#L40-2 assume base2flt_~m % 4294967296 < 16777216; 600#L40-3 [2021-10-13 00:45:46,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:46,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-10-13 00:45:46,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:46,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476024207] [2021-10-13 00:45:46,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:46,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:46,200 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:46,221 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:46,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:46,222 INFO L82 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-10-13 00:45:46,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:46,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638802948] [2021-10-13 00:45:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:46,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:46,229 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:46,238 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:46,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:46,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-10-13 00:45:46,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:46,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365840840] [2021-10-13 00:45:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:46,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:46,283 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:46,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:46,387 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:46,387 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:46,387 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:46,388 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:46,388 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:45:46,388 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:46,388 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:46,388 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:46,388 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2021-10-13 00:45:46,389 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:46,389 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:46,390 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 00:45:46,400 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 00:45:46,522 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:46,522 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:45:46,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:46,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:46,525 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:46,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:45:46,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:45:46,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:46,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:46,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:46,645 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:45:46,645 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 00:45:46,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:46,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:46,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:46,655 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:46,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:45:46,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:46,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:45:46,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:46,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:46,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:46,742 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:46,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:45:46,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:46,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:45:46,833 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:45:46,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:46,840 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:46,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:46,840 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:46,840 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:46,841 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:45:46,841 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:46,841 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:46,841 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:46,841 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2021-10-13 00:45:46,841 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:46,841 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:46,843 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 00:45:46,851 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 00:45:46,925 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:46,925 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:45:46,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:46,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:46,927 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:46,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:45:46,933 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 00:45:46,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:45:46,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:45:46,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:45:46,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:45:46,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:45:46,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:45:46,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:45:46,957 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:45:47,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:47,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:47,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:47,006 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:47,017 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 00:45:47,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:45:47,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:45:47,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:45:47,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:45:47,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:45:47,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:45:47,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:45:47,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:45:47,044 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:45:47,047 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:45:47,047 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:45:47,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:47,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:47,049 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:47,056 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:45:47,056 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:45:47,056 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:45:47,056 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 00:45:47,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:45:47,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:47,098 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:45:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:47,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:45:47,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:47,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:45:47,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:47,286 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 00:45:47,287 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 00:45:47,288 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:47,303 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 56 transitions. Complement of second has 5 states. [2021-10-13 00:45:47,304 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 00:45:47,304 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 00:45:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2021-10-13 00:45:47,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 00:45:47,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:47,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 00:45:47,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:47,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-13 00:45:47,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:47,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2021-10-13 00:45:47,311 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 00:45:47,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2021-10-13 00:45:47,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-13 00:45:47,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-13 00:45:47,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2021-10-13 00:45:47,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:45:47,313 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2021-10-13 00:45:47,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2021-10-13 00:45:47,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-10-13 00:45:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:47,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-10-13 00:45:47,320 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-13 00:45:47,321 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-13 00:45:47,321 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:45:47,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-10-13 00:45:47,322 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:45:47,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:47,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:47,323 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:47,323 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:45:47,324 INFO L791 eck$LassoCheckResult]: Stem: 707#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 708#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 715#L22 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 722#L72 base2flt_#res := base2flt_~__retres4~0; 732#L73 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 709#L22-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 705#L72-1 base2flt_#res := base2flt_~__retres4~0; 706#L73-1 main_#t~ret12 := base2flt_#res;main_~a~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 716#L22-2 assume !(0 == base2flt_~m % 4294967296); 714#L28-2 assume !(base2flt_~m % 4294967296 < 16777216); 711#L50-8 [2021-10-13 00:45:47,324 INFO L793 eck$LassoCheckResult]: Loop: 711#L50-8 assume !false; 703#L51-2 assume base2flt_~m % 4294967296 >= 33554432; 704#L52-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 711#L50-8 [2021-10-13 00:45:47,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2021-10-13 00:45:47,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:47,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770414462] [2021-10-13 00:45:47,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:47,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:47,361 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:47,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:47,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:47,382 INFO L82 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-10-13 00:45:47,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:47,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693315870] [2021-10-13 00:45:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:47,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:47,389 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:47,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:47,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:47,396 INFO L82 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2021-10-13 00:45:47,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:47,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774995961] [2021-10-13 00:45:47,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:47,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:47,420 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:47,458 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:47,505 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:47,505 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:47,505 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:47,505 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:47,505 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:45:47,505 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:47,505 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:47,506 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:47,506 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2021-10-13 00:45:47,506 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:47,506 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:47,510 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 00:45:47,516 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 00:45:47,605 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:47,605 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:45:47,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:47,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:47,609 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:47,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:45:47,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:47,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:45:47,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:47,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:47,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:47,692 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:47,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:45:47,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:45:47,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:47,785 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:45:47,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:47,793 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:47,793 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:47,793 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:47,793 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:47,793 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:45:47,793 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:47,794 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:47,794 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:47,794 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2021-10-13 00:45:47,794 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:47,794 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:47,795 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 00:45:47,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:45:47,889 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:47,889 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:45:47,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:47,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:47,892 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:47,904 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 00:45:47,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:45:47,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:45:47,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:45:47,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:45:47,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:45:47,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:45:47,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:45:47,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:45:47,928 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:45:47,934 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:45:47,934 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:45:47,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:47,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:47,937 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:47,940 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:45:47,940 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:45:47,940 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:45:47,940 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 00:45:47,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:45:47,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:47,986 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:45:48,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:48,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:45:48,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:48,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:45:48,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:48,111 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 00:45:48,113 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 00:45:48,113 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:48,134 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 43 transitions. Complement of second has 4 states. [2021-10-13 00:45:48,135 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 00:45:48,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:48,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2021-10-13 00:45:48,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 00:45:48,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:48,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-13 00:45:48,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:48,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-13 00:45:48,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:48,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-10-13 00:45:48,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:45:48,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2021-10-13 00:45:48,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-13 00:45:48,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-10-13 00:45:48,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-10-13 00:45:48,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:45:48,142 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-13 00:45:48,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-10-13 00:45:48,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-13 00:45:48,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:48,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-10-13 00:45:48,150 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-13 00:45:48,150 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-13 00:45:48,150 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:45:48,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-10-13 00:45:48,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:45:48,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:48,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:48,152 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:48,152 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:45:48,152 INFO L791 eck$LassoCheckResult]: Stem: 826#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 827#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 833#L22 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 840#L72 base2flt_#res := base2flt_~__retres4~0; 850#L73 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 828#L22-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 824#L72-1 base2flt_#res := base2flt_~__retres4~0; 825#L73-1 main_#t~ret12 := base2flt_#res;main_~a~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 834#L22-2 assume !(0 == base2flt_~m % 4294967296); 832#L28-2 assume base2flt_~m % 4294967296 < 16777216; 830#L40-5 [2021-10-13 00:45:48,153 INFO L793 eck$LassoCheckResult]: Loop: 830#L40-5 assume !false; 831#L31-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 849#L40-4 assume base2flt_~m % 4294967296 < 16777216; 830#L40-5 [2021-10-13 00:45:48,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:48,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2021-10-13 00:45:48,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:48,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48145159] [2021-10-13 00:45:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:48,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:48,199 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:48,216 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:48,217 INFO L82 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-10-13 00:45:48,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:48,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249621728] [2021-10-13 00:45:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:48,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:48,222 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:48,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:48,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:48,228 INFO L82 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2021-10-13 00:45:48,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:48,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937497089] [2021-10-13 00:45:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:48,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:48,243 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:48,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:48,309 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:48,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:48,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:48,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:48,309 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:45:48,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:48,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:48,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:48,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2021-10-13 00:45:48,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:48,310 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:48,312 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 00:45:48,353 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 00:45:48,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:48,471 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:48,472 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:45:48,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:48,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:48,486 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:48,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:48,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:45:48,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:45:48,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:48,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:48,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:48,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:48,573 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:48,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:45:48,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:45:48,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:45:48,642 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:45:48,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:48,650 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:45:48,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:45:48,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:45:48,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:45:48,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:45:48,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:48,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:45:48,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:45:48,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2021-10-13 00:45:48,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:45:48,651 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:45:48,652 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 00:45:48,659 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 00:45:48,730 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:45:48,730 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:45:48,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:48,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:48,737 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:48,741 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 00:45:48,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:45:48,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:45:48,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:45:48,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:45:48,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:45:48,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:45:48,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:45:48,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:45:48,772 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:45:48,775 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:45:48,775 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:45:48,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:48,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:48,777 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:48,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:45:48,779 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:45:48,779 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:45:48,780 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 00:45:48,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:45:48,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-13 00:45:48,821 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:45:48,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:48,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:45:48,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:48,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:45:48,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:48,982 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 00:45:48,983 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 00:45:48,983 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:48,997 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 39 transitions. Complement of second has 4 states. [2021-10-13 00:45:48,997 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 00:45:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-10-13 00:45:48,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 00:45:49,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:49,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-13 00:45:49,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:49,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-13 00:45:49,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:45:49,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-10-13 00:45:49,004 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:45:49,004 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-10-13 00:45:49,004 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:45:49,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:45:49,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:45:49,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:45:49,005 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:45:49,005 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:45:49,005 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:45:49,005 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:45:49,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:45:49,006 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:45:49,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:45:49,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:45:49 BoogieIcfgContainer [2021-10-13 00:45:49,014 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:45:49,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:45:49,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:45:49,016 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:45:49,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:45:43" (3/4) ... [2021-10-13 00:45:49,022 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:45:49,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:45:49,025 INFO L168 Benchmark]: Toolchain (without parser) took 7064.02 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 103.2 MB in the beginning and 114.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:49,029 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 92.3 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:45:49,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.73 ms. Allocated memory is still 136.3 MB. Free memory was 102.8 MB in the beginning and 108.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:49,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.78 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 106.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:49,040 INFO L168 Benchmark]: Boogie Preprocessor took 74.17 ms. Allocated memory is still 136.3 MB. Free memory was 106.4 MB in the beginning and 104.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:49,040 INFO L168 Benchmark]: RCFGBuilder took 728.20 ms. Allocated memory is still 136.3 MB. Free memory was 104.7 MB in the beginning and 87.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:49,042 INFO L168 Benchmark]: BuchiAutomizer took 5664.86 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 87.5 MB in the beginning and 114.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:49,043 INFO L168 Benchmark]: Witness Printer took 7.01 ms. Allocated memory is still 163.6 MB. Free memory is still 114.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:45:49,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 92.3 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 515.73 ms. Allocated memory is still 136.3 MB. Free memory was 102.8 MB in the beginning and 108.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.78 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 106.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.17 ms. Allocated memory is still 136.3 MB. Free memory was 106.4 MB in the beginning and 104.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 728.20 ms. Allocated memory is still 136.3 MB. Free memory was 104.7 MB in the beginning and 87.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5664.86 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 87.5 MB in the beginning and 114.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Witness Printer took 7.01 ms. Allocated memory is still 163.6 MB. Free memory is still 114.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 253 + -2 * e and consists of 4 locations. One deterministic module has affine ranking function 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 48.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 280 SDtfs, 247 SDslu, 27 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 69ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:45:49,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:49,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e800a517-932f-414d-925c-f12b0ab1c892/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...