./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD --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 331c48a04a8caddf27498f6f02cdac644ba512a5bbe373bec7a9be0d5f3b8263 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:46:42,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:46:42,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:46:42,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:46:42,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:46:42,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:46:42,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:46:42,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:46:42,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:46:42,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:46:42,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:46:42,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:46:42,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:46:42,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:46:42,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:46:42,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:46:42,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:46:42,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:46:42,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:46:42,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:46:42,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:46:42,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:46:42,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:46:42,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:46:42,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:46:42,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:46:42,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:46:42,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:46:42,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:46:42,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:46:42,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:46:42,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:46:42,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:46:42,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:46:42,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:46:42,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:46:42,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:46:42,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:46:42,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:46:42,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:46:42,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:46:42,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:46:42,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:46:42,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:46:42,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:46:42,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:46:42,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:46:42,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:46:42,506 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:46:42,507 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:46:42,507 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:46:42,507 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:46:42,508 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:46:42,508 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:46:42,509 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:46:42,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:46:42,510 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:46:42,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:46:42,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:46:42,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:46:42,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:46:42,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:46:42,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:46:42,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:46:42,513 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:46:42,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:46:42,514 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:46:42,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:46:42,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:46:42,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:46:42,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:46:42,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:46:42,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:46:42,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:46:42,519 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:46:42,519 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_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 331c48a04a8caddf27498f6f02cdac644ba512a5bbe373bec7a9be0d5f3b8263 [2021-10-28 23:46:42,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:46:42,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:46:42,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:46:42,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:46:42,870 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:46:42,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c [2021-10-28 23:46:42,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/data/9b110a381/fa4f6a1763c84448813fee6997f5285c/FLAG68826b524 [2021-10-28 23:46:43,692 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:46:43,693 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c [2021-10-28 23:46:43,719 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/data/9b110a381/fa4f6a1763c84448813fee6997f5285c/FLAG68826b524 [2021-10-28 23:46:43,911 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/data/9b110a381/fa4f6a1763c84448813fee6997f5285c [2021-10-28 23:46:43,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:46:43,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:46:43,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:46:43,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:46:43,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:46:43,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:46:43" (1/1) ... [2021-10-28 23:46:43,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3f64a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:43, skipping insertion in model container [2021-10-28 23:46:43,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:46:43" (1/1) ... [2021-10-28 23:46:43,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:46:44,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:46:44,329 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_e892983c-ec42-457a-bb98-a54c4b019449/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c[12529,12542] [2021-10-28 23:46:44,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:46:44,607 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:46:44,648 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_e892983c-ec42-457a-bb98-a54c4b019449/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c[12529,12542] [2021-10-28 23:46:44,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:46:44,828 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:46:44,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44 WrapperNode [2021-10-28 23:46:44,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:46:44,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:46:44,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:46:44,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:46:44,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:44,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:46:45,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:46:45,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:46:45,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:46:45,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:46:45,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:46:45,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:46:45,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:46:45,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (1/1) ... [2021-10-28 23:46:45,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:45,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:45,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:45,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:46:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-28 23:46:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:46:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:46:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:46:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:46:47,652 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:46:47,652 INFO L299 CfgBuilder]: Removed 405 assume(true) statements. [2021-10-28 23:46:47,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:46:47 BoogieIcfgContainer [2021-10-28 23:46:47,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:46:47,657 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:46:47,658 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:46:47,671 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:46:47,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:47,673 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:46:43" (1/3) ... [2021-10-28 23:46:47,675 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b756e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:46:47, skipping insertion in model container [2021-10-28 23:46:47,675 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:47,676 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:44" (2/3) ... [2021-10-28 23:46:47,677 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b756e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:46:47, skipping insertion in model container [2021-10-28 23:46:47,677 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:47,677 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:46:47" (3/3) ... [2021-10-28 23:46:47,679 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec0_product36.cil.c [2021-10-28 23:46:47,752 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:46:47,752 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:46:47,752 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:46:47,753 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:46:47,753 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:46:47,753 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:46:47,753 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:46:47,753 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:46:47,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 471 states, 470 states have (on average 1.6829787234042553) internal successors, (791), 470 states have internal predecessors, (791), 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) [2021-10-28 23:46:47,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-10-28 23:46:47,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:47,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:47,878 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:47,878 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:46:47,878 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:46:47,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 471 states, 470 states have (on average 1.6829787234042553) internal successors, (791), 470 states have internal predecessors, (791), 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) [2021-10-28 23:46:47,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-10-28 23:46:47,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:47,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:47,908 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:47,908 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:46:47,915 INFO L791 eck$LassoCheckResult]: Stem: 464#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(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string43.base, #t~string43.offset, 1);call write~init~int(115, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(10, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 3 + #t~string43.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(10);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(12);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(10);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(18);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(10);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(34);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(16);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(22);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(16);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(44);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(44);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(9);call #t~string105.base, #t~string105.offset := #Ultimate.allocOnStack(9);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(11);~__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;~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;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~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;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 404#L-1true havoc main_#res;havoc main_#t~nondet109, main_#t~ret110, main_~retValue_acc~41, main_~tmp~17;main_~retValue_acc~41 := main_#t~nondet109;havoc main_#t~nondet109;havoc main_~tmp~17; 34#L85true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 274#L93true main_#t~ret110 := valid_product_#res;main_~tmp~17 := main_#t~ret110;havoc main_#t~ret110; 168#L2616true assume 0 != main_~tmp~17;havoc setup_#t~nondet104, setup_#t~nondet106, setup_#t~nondet108, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.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_tmp3~3.base, setup_~__cil_tmp3~3.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; 61#L1554true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 289#L1560-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string103.base, #t~string103.offset;havoc setup_#t~nondet104;~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; 28#L1554-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 249#L1560-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string105.base, #t~string105.offset;havoc setup_#t~nondet106;~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; 349#L1554-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 139#L1560-8true setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string107.base, #t~string107.offset;havoc setup_#t~nondet108; 325#L2603true havoc test_#t~nondet85, test_#t~nondet86, test_#t~nondet87, test_#t~nondet88, test_#t~nondet89, test_#t~nondet90, test_#t~nondet91, test_#t~nondet92, test_#t~nondet93, test_#t~nondet94, test_#t~nondet95, 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~15, test_~tmp___0~2, test_~tmp___1~2, test_~tmp___2~2, 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~15;havoc test_~tmp___0~2;havoc test_~tmp___1~2;havoc test_~tmp___2~2;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; 395#L2482-1true [2021-10-28 23:46:47,916 INFO L793 eck$LassoCheckResult]: Loop: 395#L2482-1true assume !false; 179#L2352true assume test_~splverifierCounter~0 < 4; 14#L2353true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 446#L2359true assume 0 == test_~op1~0;test_~tmp___9~0 := test_#t~nondet85;havoc test_#t~nondet85; 345#L2363true assume 0 != test_~tmp___9~0;test_~op1~0 := 1; 395#L2482-1true [2021-10-28 23:46:47,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:47,924 INFO L85 PathProgramCache]: Analyzing trace with hash -580026000, now seen corresponding path program 1 times [2021-10-28 23:46:47,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:47,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198667652] [2021-10-28 23:46:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:47,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:46:48,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:46:48,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198667652] [2021-10-28 23:46:48,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198667652] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:46:48,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:46:48,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:46:48,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832420897] [2021-10-28 23:46:48,452 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:46:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:48,453 INFO L85 PathProgramCache]: Analyzing trace with hash 103192148, now seen corresponding path program 1 times [2021-10-28 23:46:48,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:48,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370573081] [2021-10-28 23:46:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:48,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:48,464 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:48,502 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:48,565 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:46:48,566 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:46:48,566 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:46:48,566 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:46:48,567 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:46:48,567 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:48,567 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:46:48,567 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:46:48,567 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product36.cil.c_Iteration1_Loop [2021-10-28 23:46:48,567 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:46:48,568 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:46:48,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:48,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:48,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:48,683 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:46:48,683 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:46:48,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:48,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:48,689 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:48,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:46:48,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:46:48,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:46:48,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:48,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:48,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:48,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:48,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:46:48,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:46:48,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:46:48,841 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:46:48,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:48,877 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:46:48,877 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:46:48,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:46:48,877 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:46:48,877 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:46:48,878 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:48,878 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:46:48,878 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:46:48,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product36.cil.c_Iteration1_Loop [2021-10-28 23:46:48,878 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:46:48,878 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:46:48,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:48,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:48,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:48,981 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:46:48,987 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:46:48,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:48,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:48,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:48,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:46:48,996 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 [2021-10-28 23:46:49,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:46:49,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:46:49,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:46:49,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:46:49,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:46:49,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:46:49,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:46:49,037 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:46:49,054 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:46:49,055 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:46:49,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:49,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:49,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:49,137 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:46:49,138 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:46:49,138 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:46:49,139 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op1~0) = -2*ULTIMATE.start_test_~op1~0 + 1 Supporting invariants [] [2021-10-28 23:46:49,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:46:49,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-28 23:46:49,240 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:46:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:49,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:46:49,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:46:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:49,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:46:49,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:46:49,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:46:49,698 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 [2021-10-28 23:46:49,703 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 471 states, 470 states have (on average 1.6829787234042553) internal successors, (791), 470 states have internal predecessors, (791), 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) [2021-10-28 23:46:50,044 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 471 states, 470 states have (on average 1.6829787234042553) internal successors, (791), 470 states have internal predecessors, (791), 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 2212 states and 3689 transitions. Complement of second has 7 states. [2021-10-28 23:46:50,046 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 [2021-10-28 23:46:50,048 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) [2021-10-28 23:46:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2175 transitions. [2021-10-28 23:46:50,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2175 transitions. Stem has 12 letters. Loop has 5 letters. [2021-10-28 23:46:50,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:46:50,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2175 transitions. Stem has 17 letters. Loop has 5 letters. [2021-10-28 23:46:50,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:46:50,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2175 transitions. Stem has 12 letters. Loop has 10 letters. [2021-10-28 23:46:50,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:46:50,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2212 states and 3689 transitions. [2021-10-28 23:46:50,128 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-10-28 23:46:50,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2212 states to 323 states and 591 transitions. [2021-10-28 23:46:50,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 170 [2021-10-28 23:46:50,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2021-10-28 23:46:50,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 323 states and 591 transitions. [2021-10-28 23:46:50,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:46:50,166 INFO L681 BuchiCegarLoop]: Abstraction has 323 states and 591 transitions. [2021-10-28 23:46:50,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:50,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states and 591 transitions. [2021-10-28 23:46:50,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 172. [2021-10-28 23:46:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 172 states have (on average 1.813953488372093) internal successors, (312), 171 states have internal predecessors, (312), 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) [2021-10-28 23:46:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 312 transitions. [2021-10-28 23:46:50,228 INFO L704 BuchiCegarLoop]: Abstraction has 172 states and 312 transitions. [2021-10-28 23:46:50,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:46:50,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:46:50,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:46:50,235 INFO L87 Difference]: Start difference. First operand 172 states and 312 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) [2021-10-28 23:46:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:46:50,298 INFO L93 Difference]: Finished difference Result 328 states and 596 transitions. [2021-10-28 23:46:50,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:46:50,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 596 transitions. [2021-10-28 23:46:50,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2021-10-28 23:46:50,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 328 states and 596 transitions. [2021-10-28 23:46:50,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2021-10-28 23:46:50,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2021-10-28 23:46:50,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 328 states and 596 transitions. [2021-10-28 23:46:50,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:46:50,318 INFO L681 BuchiCegarLoop]: Abstraction has 328 states and 596 transitions. [2021-10-28 23:46:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states and 596 transitions. [2021-10-28 23:46:50,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 171. [2021-10-28 23:46:50,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.8011695906432748) internal successors, (308), 170 states have internal predecessors, (308), 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) [2021-10-28 23:46:50,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 308 transitions. [2021-10-28 23:46:50,347 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 308 transitions. [2021-10-28 23:46:50,347 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 308 transitions. [2021-10-28 23:46:50,347 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:46:50,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 308 transitions. [2021-10-28 23:46:50,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-10-28 23:46:50,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:50,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:50,350 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:50,350 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:50,351 INFO L791 eck$LassoCheckResult]: Stem: 3429#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(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string43.base, #t~string43.offset, 1);call write~init~int(115, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(10, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 3 + #t~string43.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(10);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(12);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(10);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(18);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(10);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(34);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(16);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(22);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(16);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(44);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(44);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(9);call #t~string105.base, #t~string105.offset := #Ultimate.allocOnStack(9);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(11);~__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;~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;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~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;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 3410#L-1 havoc main_#res;havoc main_#t~nondet109, main_#t~ret110, main_~retValue_acc~41, main_~tmp~17;main_~retValue_acc~41 := main_#t~nondet109;havoc main_#t~nondet109;havoc main_~tmp~17; 3407#L85 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 3401#L93 main_#t~ret110 := valid_product_#res;main_~tmp~17 := main_#t~ret110;havoc main_#t~ret110; 3402#L2616 assume 0 != main_~tmp~17;havoc setup_#t~nondet104, setup_#t~nondet106, setup_#t~nondet108, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.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_tmp3~3.base, setup_~__cil_tmp3~3.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; 3416#L1554 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3268#L1560-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string103.base, #t~string103.offset;havoc setup_#t~nondet104;~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; 3391#L1554-2 assume !(1 == setClientId_~handle); 3392#L1557-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 3288#L1560-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string105.base, #t~string105.offset;havoc setup_#t~nondet106;~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; 3289#L1554-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3342#L1560-8 setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string107.base, #t~string107.offset;havoc setup_#t~nondet108; 3343#L2603 havoc test_#t~nondet85, test_#t~nondet86, test_#t~nondet87, test_#t~nondet88, test_#t~nondet89, test_#t~nondet90, test_#t~nondet91, test_#t~nondet92, test_#t~nondet93, test_#t~nondet94, test_#t~nondet95, 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~15, test_~tmp___0~2, test_~tmp___1~2, test_~tmp___2~2, 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~15;havoc test_~tmp___0~2;havoc test_~tmp___1~2;havoc test_~tmp___2~2;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; 3388#L2482-1 assume !false; 3393#L2352 [2021-10-28 23:46:50,351 INFO L793 eck$LassoCheckResult]: Loop: 3393#L2352 assume test_~splverifierCounter~0 < 4; 3326#L2353 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 3327#L2359 assume !(0 == test_~op1~0); 3376#L2369 assume !(0 == test_~op2~0); 3377#L2383 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet87;havoc test_#t~nondet87; 3411#L2388 assume 0 != test_~tmp___7~0;test_~op3~0 := 1; 3323#L2482-1 assume !false; 3393#L2352 [2021-10-28 23:46:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:50,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1897365039, now seen corresponding path program 1 times [2021-10-28 23:46:50,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:50,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273654345] [2021-10-28 23:46:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:50,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:46:50,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:46:50,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273654345] [2021-10-28 23:46:50,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273654345] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:46:50,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:46:50,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:46:50,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956091501] [2021-10-28 23:46:50,490 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:46:50,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:50,491 INFO L85 PathProgramCache]: Analyzing trace with hash -235666265, now seen corresponding path program 1 times [2021-10-28 23:46:50,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:50,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161722525] [2021-10-28 23:46:50,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:50,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:50,500 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:50,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:50,590 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:46:50,590 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:46:50,591 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:46:50,591 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:46:50,591 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:46:50,591 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:50,591 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:46:50,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:46:50,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product36.cil.c_Iteration2_Loop [2021-10-28 23:46:50,592 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:46:50,592 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:46:50,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,705 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:46:50,705 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:46:50,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:50,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:50,709 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:50,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:46:50,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:46:50,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:46:50,744 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:46:50,744 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: [] [2021-10-28 23:46:50,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:50,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:50,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:50,797 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:50,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:46:50,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:46:50,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:46:50,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:50,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:50,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:50,871 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:50,878 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:46:50,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:46:50,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:46:50,953 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:46:50,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:50,961 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:46:50,962 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:46:50,962 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:46:50,962 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:46:50,962 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:46:50,962 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:50,962 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:46:50,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:46:50,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product36.cil.c_Iteration2_Loop [2021-10-28 23:46:50,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:46:50,963 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:46:50,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:50,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:46:51,092 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:46:51,093 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:46:51,093 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:51,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:51,094 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:51,097 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 [2021-10-28 23:46:51,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:46:51,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:46:51,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:46:51,109 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:46:51,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:46:51,110 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:46:51,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:46:51,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:46:51,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:46:51,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:51,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:51,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:51,173 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:51,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:46:51,179 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 [2021-10-28 23:46:51,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:46:51,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:46:51,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:46:51,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:46:51,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:46:51,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:46:51,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:46:51,209 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:46:51,213 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:46:51,213 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:46:51,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:51,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:51,217 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:51,230 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:46:51,230 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:46:51,230 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:46:51,230 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-10-28 23:46:51,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:46:51,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:51,278 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:46:51,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:51,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:46:51,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:46:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:51,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:46:51,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:46:51,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:46:51,613 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 [2021-10-28 23:46:51,613 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 171 states and 308 transitions. cyclomatic complexity: 139 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) [2021-10-28 23:46:51,659 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 171 states and 308 transitions. cyclomatic complexity: 139. 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 327 states and 596 transitions. Complement of second has 6 states. [2021-10-28 23:46:51,660 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 [2021-10-28 23:46:51,660 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) [2021-10-28 23:46:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2021-10-28 23:46:51,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 14 letters. Loop has 7 letters. [2021-10-28 23:46:51,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:46:51,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 21 letters. Loop has 7 letters. [2021-10-28 23:46:51,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:46:51,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 14 letters. Loop has 14 letters. [2021-10-28 23:46:51,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:46:51,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 596 transitions. [2021-10-28 23:46:51,668 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:46:51,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 0 states and 0 transitions. [2021-10-28 23:46:51,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:46:51,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:46:51,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:46:51,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:46:51,690 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:46:51,690 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:46:51,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:46:51,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:46:51,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:46:51,691 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) [2021-10-28 23:46:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:46:51,692 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 23:46:51,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:46:51,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 23:46:51,692 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:46:51,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:46:51,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:46:51,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:46:51,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:46:51,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:46:51,694 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:46:51,694 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:46:51,694 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:46:51,694 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:46:51,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:46:51,694 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:46:51,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:46:51,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:46:51 BoogieIcfgContainer [2021-10-28 23:46:51,702 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:46:51,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:46:51,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:46:51,703 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:46:51,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:46:47" (3/4) ... [2021-10-28 23:46:51,707 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:46:51,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:46:51,709 INFO L168 Benchmark]: Toolchain (without parser) took 7792.32 ms. Allocated memory was 86.0 MB in the beginning and 153.1 MB in the end (delta: 67.1 MB). Free memory was 49.3 MB in the beginning and 104.0 MB in the end (delta: -54.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:46:51,710 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:46:51,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 912.86 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 49.1 MB in the beginning and 60.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:46:51,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.20 ms. Allocated memory is still 109.1 MB. Free memory was 60.2 MB in the beginning and 49.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:46:51,713 INFO L168 Benchmark]: Boogie Preprocessor took 147.34 ms. Allocated memory is still 109.1 MB. Free memory was 49.8 MB in the beginning and 42.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:46:51,713 INFO L168 Benchmark]: RCFGBuilder took 2504.75 ms. Allocated memory was 109.1 MB in the beginning and 153.1 MB in the end (delta: 44.0 MB). Free memory was 42.1 MB in the beginning and 100.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:46:51,714 INFO L168 Benchmark]: BuchiAutomizer took 4044.30 ms. Allocated memory is still 153.1 MB. Free memory was 100.4 MB in the beginning and 105.0 MB in the end (delta: -4.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:46:51,715 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 153.1 MB. Free memory was 105.0 MB in the beginning and 104.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:46:51,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 912.86 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 49.1 MB in the beginning and 60.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 171.20 ms. Allocated memory is still 109.1 MB. Free memory was 60.2 MB in the beginning and 49.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 147.34 ms. Allocated memory is still 109.1 MB. Free memory was 49.8 MB in the beginning and 42.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2504.75 ms. Allocated memory was 109.1 MB in the beginning and 153.1 MB in the end (delta: 44.0 MB). Free memory was 42.1 MB in the beginning and 100.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4044.30 ms. Allocated memory is still 153.1 MB. Free memory was 100.4 MB in the beginning and 105.0 MB in the end (delta: -4.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.18 ms. Allocated memory is still 153.1 MB. Free memory was 105.0 MB in the beginning and 104.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 308 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 171 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2004 SDtfs, 1844 SDslu, 2679 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 31ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:46:51,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:46:51,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e892983c-ec42-457a-bb98-a54c4b019449/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...