./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be --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 ceaa95778492e3bc285d343b26b58125dae05b4d97d6b8fbdf100b65fa491c48 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:01:15,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:01:15,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:01:15,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:01:15,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:01:15,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:01:15,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:01:15,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:01:15,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:01:15,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:01:15,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:01:15,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:01:15,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:01:15,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:01:15,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:01:15,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:01:15,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:01:15,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:01:15,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:01:15,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:01:15,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:01:15,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:01:15,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:01:15,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:01:15,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:01:15,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:01:15,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:01:15,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:01:15,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:01:15,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:01:15,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:01:15,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:01:15,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:01:15,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:01:15,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:01:15,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:01:15,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:01:15,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:01:15,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:01:15,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:01:15,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:01:15,679 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:01:15,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:01:15,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:01:15,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:01:15,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:01:15,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:01:15,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:01:15,721 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:01:15,721 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:01:15,722 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:01:15,722 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:01:15,723 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:01:15,723 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:01:15,724 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:01:15,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:01:15,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:01:15,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:01:15,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:01:15,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:01:15,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:01:15,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:01:15,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:01:15,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:01:15,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:01:15,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:01:15,728 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:01:15,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:01:15,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:01:15,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:01:15,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:01:15,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:01:15,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:01:15,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:01:15,734 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:01:15,734 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_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceaa95778492e3bc285d343b26b58125dae05b4d97d6b8fbdf100b65fa491c48 [2021-10-21 20:01:16,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:01:16,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:01:16,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:01:16,094 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:01:16,096 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:01:16,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/email_spec11_product03.cil.c [2021-10-21 20:01:16,176 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/data/be90f4f64/01bb9f37588d4a3fa0ef4684d06cb0c0/FLAG93ab7b7ce [2021-10-21 20:01:16,836 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:01:16,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/sv-benchmarks/c/product-lines/email_spec11_product03.cil.c [2021-10-21 20:01:16,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/data/be90f4f64/01bb9f37588d4a3fa0ef4684d06cb0c0/FLAG93ab7b7ce [2021-10-21 20:01:17,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/data/be90f4f64/01bb9f37588d4a3fa0ef4684d06cb0c0 [2021-10-21 20:01:17,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:01:17,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:01:17,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:01:17,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:01:17,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:01:17,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:01:17" (1/1) ... [2021-10-21 20:01:17,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2b6055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:17, skipping insertion in model container [2021-10-21 20:01:17,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:01:17" (1/1) ... [2021-10-21 20:01:17,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:01:17,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:01:17,608 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_c4183268-6fcd-46a6-997f-b11d6ac4458c/sv-benchmarks/c/product-lines/email_spec11_product03.cil.c[19915,19928] [2021-10-21 20:01:17,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:01:17,838 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:01:17,916 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_c4183268-6fcd-46a6-997f-b11d6ac4458c/sv-benchmarks/c/product-lines/email_spec11_product03.cil.c[19915,19928] [2021-10-21 20:01:18,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:01:18,045 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:01:18,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18 WrapperNode [2021-10-21 20:01:18,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:01:18,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:01:18,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:01:18,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:01:18,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:01:18,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:01:18,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:01:18,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:01:18,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:01:18,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:01:18,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:01:18,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:01:18,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (1/1) ... [2021-10-21 20:01:18,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:18,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:18,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:18,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:01:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-21 20:01:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:01:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:01:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:01:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:01:19,792 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:01:19,793 INFO L299 CfgBuilder]: Removed 111 assume(true) statements. [2021-10-21 20:01:19,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:01:19 BoogieIcfgContainer [2021-10-21 20:01:19,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:01:19,796 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:01:19,796 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:01:19,800 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:01:19,801 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:01:19,801 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:01:17" (1/3) ... [2021-10-21 20:01:19,802 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d0f75a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:01:19, skipping insertion in model container [2021-10-21 20:01:19,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:01:19,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:18" (2/3) ... [2021-10-21 20:01:19,803 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d0f75a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:01:19, skipping insertion in model container [2021-10-21 20:01:19,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:01:19,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:01:19" (3/3) ... [2021-10-21 20:01:19,805 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec11_product03.cil.c [2021-10-21 20:01:19,856 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:01:19,856 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:01:19,856 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:01:19,856 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:01:19,857 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:01:19,857 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:01:19,857 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:01:19,857 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:01:19,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.6521739130434783) internal successors, (190), 115 states have internal predecessors, (190), 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) [2021-10-21 20:01:19,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2021-10-21 20:01:19,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:19,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:19,918 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:19,918 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-21 20:01:19,918 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:01:19,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.6521739130434783) internal successors, (190), 115 states have internal predecessors, (190), 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) [2021-10-21 20:01:19,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2021-10-21 20:01:19,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:19,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:19,930 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:19,931 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-21 20:01:19,937 INFO L791 eck$LassoCheckResult]: Stem: 100#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(29);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(44);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(44);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(9);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(9);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(11);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(10);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(16);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(22);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(20);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string49.base, #t~string49.offset, 1);call write~init~int(115, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(10, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(21);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(25);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(10);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(12);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(10);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(18);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 40#L-1true havoc main_#res;havoc main_#t~nondet20, main_#t~ret21, main_~retValue_acc~0, main_~tmp~1;main_~retValue_acc~0 := main_#t~nondet20;havoc main_#t~nondet20;havoc main_~tmp~1; 38#L417true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 93#L425true main_#t~ret21 := valid_product_#res;main_~tmp~1 := main_#t~ret21;havoc main_#t~ret21; 86#L181true assume 0 != main_~tmp~1;havoc setup_#t~nondet15, setup_#t~nondet17, setup_#t~nondet19, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob_~bob___0, setup_bob_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 91#L2475true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 41#L2481-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string14.base, #t~string14.offset;havoc setup_#t~nondet15;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh_~rjh___0, setup_rjh_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 26#L2475-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 6#L2481-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string16.base, #t~string16.offset;havoc setup_#t~nondet17;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck_~chuck___0, setup_chuck_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 103#L2475-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 95#L2481-8true setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19; 7#L168true havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 90#L367-1true [2021-10-21 20:01:19,937 INFO L793 eck$LassoCheckResult]: Loop: 90#L367-1true assume !false; 66#L243true assume test_~splverifierCounter~0 < 4; 13#L244true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 81#L250true assume 0 == test_~op1~0;test_~tmp___9~0 := test_#t~nondet22;havoc test_#t~nondet22; 46#L254true assume 0 != test_~tmp___9~0;test_~op1~0 := 1; 90#L367-1true [2021-10-21 20:01:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:19,944 INFO L82 PathProgramCache]: Analyzing trace with hash -580026000, now seen corresponding path program 1 times [2021-10-21 20:01:19,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:19,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931175860] [2021-10-21 20:01:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:19,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:20,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:20,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:20,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931175860] [2021-10-21 20:01:20,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931175860] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:20,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:20,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:20,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484145427] [2021-10-21 20:01:20,368 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:01:20,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:20,406 INFO L82 PathProgramCache]: Analyzing trace with hash 103192148, now seen corresponding path program 1 times [2021-10-21 20:01:20,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:20,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40599277] [2021-10-21 20:01:20,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:20,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:20,434 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:20,491 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:20,582 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:01:20,583 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:01:20,583 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:01:20,583 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:01:20,583 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:01:20,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:20,584 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:01:20,584 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:01:20,584 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product03.cil.c_Iteration1_Loop [2021-10-21 20:01:20,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:01:20,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:01:20,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:20,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:20,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:20,738 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:01:20,739 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:01:20,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:20,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:20,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:20,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:01:20,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:01:20,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:01:20,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-21 20:01:20,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:20,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:20,804 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:20,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:01:20,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:01:20,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:01:20,851 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:01:20,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:01:20,894 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:01:20,894 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:01:20,894 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:01:20,894 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:01:20,894 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:01:20,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:20,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:01:20,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:01:20,895 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product03.cil.c_Iteration1_Loop [2021-10-21 20:01:20,895 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:01:20,895 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:01:20,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:20,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:20,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:20,984 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:01:20,990 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:01:20,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:20,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:20,998 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:21,011 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 [2021-10-21 20:01:21,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:01:21,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:01:21,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:01:21,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:01:21,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:01:21,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:01:21,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:01:21,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:01:21,050 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:01:21,057 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:01:21,057 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:01:21,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:21,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:21,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:21,063 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:01:21,063 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:01:21,064 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:01:21,064 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op1~0) = -2*ULTIMATE.start_test_~op1~0 + 1 Supporting invariants [] [2021-10-21 20:01:21,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:01:21,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:01:21,109 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:01:21,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:21,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:01:21,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:21,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:01:21,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:21,493 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 [2021-10-21 20:01:21,497 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 116 states, 115 states have (on average 1.6521739130434783) internal successors, (190), 115 states have internal predecessors, (190), 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 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-10-21 20:01:21,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:01:21,751 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 116 states, 115 states have (on average 1.6521739130434783) internal successors, (190), 115 states have internal predecessors, (190), 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 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 484 states and 781 transitions. Complement of second has 7 states. [2021-10-21 20:01:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:01:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-10-21 20:01:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 461 transitions. [2021-10-21 20:01:21,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 461 transitions. Stem has 12 letters. Loop has 5 letters. [2021-10-21 20:01:21,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:01:21,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 461 transitions. Stem has 17 letters. Loop has 5 letters. [2021-10-21 20:01:21,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:01:21,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 461 transitions. Stem has 12 letters. Loop has 10 letters. [2021-10-21 20:01:21,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:01:21,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 484 states and 781 transitions. [2021-10-21 20:01:21,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-10-21 20:01:21,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 484 states to 135 states and 235 transitions. [2021-10-21 20:01:21,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2021-10-21 20:01:21,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2021-10-21 20:01:21,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 235 transitions. [2021-10-21 20:01:21,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:01:21,792 INFO L681 BuchiCegarLoop]: Abstraction has 135 states and 235 transitions. [2021-10-21 20:01:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 235 transitions. [2021-10-21 20:01:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 78. [2021-10-21 20:01:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.7179487179487178) internal successors, (134), 77 states have internal predecessors, (134), 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) [2021-10-21 20:01:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 134 transitions. [2021-10-21 20:01:21,840 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 134 transitions. [2021-10-21 20:01:21,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:21,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:01:21,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:01:21,845 INFO L87 Difference]: Start difference. First operand 78 states and 134 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-21 20:01:21,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:21,883 INFO L93 Difference]: Finished difference Result 140 states and 240 transitions. [2021-10-21 20:01:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:01:21,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 240 transitions. [2021-10-21 20:01:21,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2021-10-21 20:01:21,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 140 states and 240 transitions. [2021-10-21 20:01:21,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2021-10-21 20:01:21,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2021-10-21 20:01:21,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 240 transitions. [2021-10-21 20:01:21,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:01:21,890 INFO L681 BuchiCegarLoop]: Abstraction has 140 states and 240 transitions. [2021-10-21 20:01:21,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 240 transitions. [2021-10-21 20:01:21,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 77. [2021-10-21 20:01:21,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.6883116883116882) internal successors, (130), 76 states have internal predecessors, (130), 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) [2021-10-21 20:01:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 130 transitions. [2021-10-21 20:01:21,898 INFO L704 BuchiCegarLoop]: Abstraction has 77 states and 130 transitions. [2021-10-21 20:01:21,898 INFO L587 BuchiCegarLoop]: Abstraction has 77 states and 130 transitions. [2021-10-21 20:01:21,898 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:01:21,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 130 transitions. [2021-10-21 20:01:21,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2021-10-21 20:01:21,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:21,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:21,901 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:21,901 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:21,901 INFO L791 eck$LassoCheckResult]: Stem: 962#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(29);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(44);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(44);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(9);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(9);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(11);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(10);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(16);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(22);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(20);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string49.base, #t~string49.offset, 1);call write~init~int(115, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(10, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(21);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(25);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(10);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(12);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(10);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(18);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 937#L-1 havoc main_#res;havoc main_#t~nondet20, main_#t~ret21, main_~retValue_acc~0, main_~tmp~1;main_~retValue_acc~0 := main_#t~nondet20;havoc main_#t~nondet20;havoc main_~tmp~1; 935#L417 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 933#L425 main_#t~ret21 := valid_product_#res;main_~tmp~1 := main_#t~ret21;havoc main_#t~ret21; 934#L181 assume 0 != main_~tmp~1;havoc setup_#t~nondet15, setup_#t~nondet17, setup_#t~nondet19, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob_~bob___0, setup_bob_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 902#L2475 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 903#L2481-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string14.base, #t~string14.offset;havoc setup_#t~nondet15;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh_~rjh___0, setup_rjh_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 949#L2475-2 assume !(1 == setClientId_~handle); 972#L2478-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 929#L2481-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string16.base, #t~string16.offset;havoc setup_#t~nondet17;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck_~chuck___0, setup_chuck_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 930#L2475-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 942#L2481-8 setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19; 931#L168 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 932#L367-1 assume !false; 950#L243 [2021-10-21 20:01:21,902 INFO L793 eck$LassoCheckResult]: Loop: 950#L243 assume test_~splverifierCounter~0 < 4; 938#L244 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 939#L250 assume !(0 == test_~op1~0); 966#L260 assume !(0 == test_~op2~0); 913#L274 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet24;havoc test_#t~nondet24; 970#L279 assume 0 != test_~tmp___7~0;test_~op3~0 := 1; 926#L367-1 assume !false; 950#L243 [2021-10-21 20:01:21,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:21,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1897365039, now seen corresponding path program 1 times [2021-10-21 20:01:21,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:21,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947949871] [2021-10-21 20:01:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:21,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:22,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:22,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:22,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947949871] [2021-10-21 20:01:22,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947949871] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:22,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:22,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:22,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104988036] [2021-10-21 20:01:22,066 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:01:22,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:22,067 INFO L82 PathProgramCache]: Analyzing trace with hash -235666265, now seen corresponding path program 1 times [2021-10-21 20:01:22,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:22,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877883073] [2021-10-21 20:01:22,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:22,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:22,078 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:22,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:22,188 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:01:22,189 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:01:22,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:01:22,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:01:22,189 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:01:22,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:22,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:01:22,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:01:22,189 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product03.cil.c_Iteration2_Loop [2021-10-21 20:01:22,189 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:01:22,190 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:01:22,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,337 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:01:22,337 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:01:22,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:22,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:22,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:22,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:01:22,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:01:22,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:01:22,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:01:22,388 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~op1~0=4} Honda state: {ULTIMATE.start_test_~op1~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:01:22,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:01:22,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:22,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:22,431 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:22,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:01:22,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:01:22,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:01:22,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-21 20:01:22,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:22,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:22,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:22,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:01:22,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:01:22,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:01:22,531 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:01:22,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:01:22,533 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:01:22,533 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:01:22,534 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:01:22,534 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:01:22,534 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:01:22,534 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:22,534 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:01:22,534 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:01:22,534 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product03.cil.c_Iteration2_Loop [2021-10-21 20:01:22,534 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:01:22,534 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:01:22,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:01:22,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:01:22,726 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:01:22,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:22,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:22,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:22,795 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 [2021-10-21 20:01:22,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:01:22,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:01:22,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:01:22,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:01:22,806 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:01:22,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:01:22,807 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:01:22,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:01:22,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:01:22,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:01:22,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:22,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:22,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:22,872 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 [2021-10-21 20:01:22,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:01:22,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:01:22,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:01:22,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:01:22,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:01:22,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:01:22,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:01:22,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:01:22,902 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:01:22,906 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:01:22,907 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:01:22,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:01:22,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:22,910 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:22,927 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:01:22,927 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:01:22,927 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:01:22,927 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-10-21 20:01:22,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:01:22,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:01:22,948 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:01:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:23,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:01:23,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:23,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:01:23,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:23,286 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 20:01:23,286 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 130 transitions. cyclomatic complexity: 55 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:23,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 130 transitions. cyclomatic complexity: 55. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 139 states and 240 transitions. Complement of second has 6 states. [2021-10-21 20:01:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:01:23,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2021-10-21 20:01:23,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 14 letters. Loop has 7 letters. [2021-10-21 20:01:23,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:01:23,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 21 letters. Loop has 7 letters. [2021-10-21 20:01:23,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:01:23,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 14 letters. Loop has 14 letters. [2021-10-21 20:01:23,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:01:23,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 240 transitions. [2021-10-21 20:01:23,304 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:01:23,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 0 states and 0 transitions. [2021-10-21 20:01:23,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:01:23,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:01:23,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:01:23,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:23,305 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:01:23,305 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:01:23,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:23,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:01:23,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:01:23,306 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-21 20:01:23,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:23,307 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-21 20:01:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:01:23,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-21 20:01:23,307 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:01:23,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:01:23,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:01:23,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:01:23,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:01:23,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:23,308 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:01:23,308 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:01:23,308 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:01:23,308 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:01:23,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:01:23,309 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:01:23,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:01:23,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:01:23 BoogieIcfgContainer [2021-10-21 20:01:23,315 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:01:23,316 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:01:23,316 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:01:23,316 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:01:23,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:01:19" (3/4) ... [2021-10-21 20:01:23,320 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:01:23,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:01:23,322 INFO L168 Benchmark]: Toolchain (without parser) took 6249.50 ms. Allocated memory was 92.3 MB in the beginning and 151.0 MB in the end (delta: 58.7 MB). Free memory was 50.2 MB in the beginning and 87.2 MB in the end (delta: -37.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:23,323 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:01:23,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 963.91 ms. Allocated memory is still 92.3 MB. Free memory was 50.0 MB in the beginning and 46.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:23,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.45 ms. Allocated memory is still 92.3 MB. Free memory was 45.9 MB in the beginning and 41.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:23,325 INFO L168 Benchmark]: Boogie Preprocessor took 69.00 ms. Allocated memory is still 92.3 MB. Free memory was 41.4 MB in the beginning and 38.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:23,326 INFO L168 Benchmark]: RCFGBuilder took 1586.97 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 38.4 MB in the beginning and 67.7 MB in the end (delta: -29.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:23,327 INFO L168 Benchmark]: BuchiAutomizer took 3519.24 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 67.1 MB in the beginning and 87.2 MB in the end (delta: -20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:23,327 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 151.0 MB. Free memory is still 87.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:01:23,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 963.91 ms. Allocated memory is still 92.3 MB. Free memory was 50.0 MB in the beginning and 46.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.45 ms. Allocated memory is still 92.3 MB. Free memory was 45.9 MB in the beginning and 41.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.00 ms. Allocated memory is still 92.3 MB. Free memory was 41.4 MB in the beginning and 38.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1586.97 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 38.4 MB in the beginning and 67.7 MB in the end (delta: -29.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3519.24 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 67.1 MB in the beginning and 87.2 MB in the end (delta: -20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.42 ms. Allocated memory is still 151.0 MB. Free memory is still 87.2 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op1 + 1 and consists of 5 locations. One deterministic module has affine ranking function 7 + -2 * splverifierCounter and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. 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 2. Automata minimization 39.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 120 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 77 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 543 SDtfs, 472 SDslu, 621 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax100 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 93ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:01:23,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:01:23,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4183268-6fcd-46a6-997f-b11d6ac4458c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...