./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer --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 a9d879983fb490a2010b9139e13ae6343ba0b16b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:01:40,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:01:40,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:01:40,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:01:40,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:01:40,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:01:40,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:01:40,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:01:40,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:01:40,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:01:40,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:01:40,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:01:40,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:01:40,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:01:40,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:01:40,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:01:40,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:01:40,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:01:40,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:01:40,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:01:40,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:01:40,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:01:40,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:01:40,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:01:40,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:01:40,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:01:40,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:01:40,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:01:40,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:01:40,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:01:40,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:01:40,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:01:40,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:01:40,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:01:40,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:01:40,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:01:40,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:01:40,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:01:40,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:01:40,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:01:40,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:01:40,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:01:40,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:01:40,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:01:40,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:01:40,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:01:40,529 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:01:40,529 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:01:40,530 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:01:40,530 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:01:40,530 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:01:40,530 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:01:40,532 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:01:40,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:01:40,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:01:40,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:01:40,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:01:40,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:01:40,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:01:40,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:01:40,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:01:40,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:01:40,535 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:01:40,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:01:40,536 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:01:40,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:01:40,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:01:40,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:01:40,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:01:40,537 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:01:40,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:01:40,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:01:40,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:01:40,539 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:01:40,540 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:01:40,541 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-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9d879983fb490a2010b9139e13ae6343ba0b16b [2020-12-01 15:01:40,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:01:40,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:01:40,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:01:40,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:01:40,981 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:01:40,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c [2020-12-01 15:01:41,087 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/data/3100950fa/a17a83f59c084fd3b4e6d064ab756289/FLAG6e78a1dfd [2020-12-01 15:01:41,936 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:01:41,936 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/sv-benchmarks/c/product-lines/email_spec4_product28.cil.c [2020-12-01 15:01:41,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/data/3100950fa/a17a83f59c084fd3b4e6d064ab756289/FLAG6e78a1dfd [2020-12-01 15:01:42,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/data/3100950fa/a17a83f59c084fd3b4e6d064ab756289 [2020-12-01 15:01:42,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:01:42,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:01:42,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:01:42,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:01:42,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:01:42,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:01:42" (1/1) ... [2020-12-01 15:01:42,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4450e835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:42, skipping insertion in model container [2020-12-01 15:01:42,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:01:42" (1/1) ... [2020-12-01 15:01:42,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:01:42,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:01:42,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:01:42,933 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:01:43,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:01:43,179 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:01:43,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43 WrapperNode [2020-12-01 15:01:43,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:01:43,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:01:43,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:01:43,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:01:43,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:01:43,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:01:43,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:01:43,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:01:43,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... [2020-12-01 15:01:43,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:01:43,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:01:43,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:01:43,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:01:43,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-12-01 15:01:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:01:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:01:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:01:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:01:46,580 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:01:46,580 INFO L298 CfgBuilder]: Removed 295 assume(true) statements. [2020-12-01 15:01:46,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:01:46 BoogieIcfgContainer [2020-12-01 15:01:46,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:01:46,585 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:01:46,585 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:01:46,589 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:01:46,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:01:46,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:01:42" (1/3) ... [2020-12-01 15:01:46,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22249912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:01:46, skipping insertion in model container [2020-12-01 15:01:46,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:01:46,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:01:43" (2/3) ... [2020-12-01 15:01:46,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22249912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:01:46, skipping insertion in model container [2020-12-01 15:01:46,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:01:46,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:01:46" (3/3) ... [2020-12-01 15:01:46,595 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec4_product28.cil.c [2020-12-01 15:01:46,648 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:01:46,649 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:01:46,649 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:01:46,649 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:01:46,649 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:01:46,649 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:01:46,649 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:01:46,650 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:01:46,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 477 states. [2020-12-01 15:01:46,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2020-12-01 15:01:46,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:01:46,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:01:46,768 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:01:46,770 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:01:46,770 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:01:46,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 477 states. [2020-12-01 15:01:46,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2020-12-01 15:01:46,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:01:46,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:01:46,788 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:01:46,788 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:01:46,794 INFO L794 eck$LassoCheckResult]: Stem: 319#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(10);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(16);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(20);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string31.base, #t~string31.offset, 1);call write~init~int(115, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(10, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(10);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(12);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(10);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(18);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(16);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(16);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(44);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(44);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(9);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(11);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(19);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string94.base, #t~string94.offset, 1);call write~init~int(100, #t~string94.base, 1 + #t~string94.offset, 1);call write~init~int(10, #t~string94.base, 2 + #t~string94.offset, 1);call write~init~int(0, #t~string94.base, 3 + #t~string94.offset, 1);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string97.base, #t~string97.offset, 1);call write~init~int(100, #t~string97.base, 1 + #t~string97.offset, 1);call write~init~int(10, #t~string97.base, 2 + #t~string97.offset, 1);call write~init~int(0, #t~string97.base, 3 + #t~string97.offset, 1);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(13);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(30);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(9);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(21);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(30);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(9);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(21);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(30);call #t~string136.base, #t~string136.offset := #Ultimate.allocOnStack(9);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(25);call #t~string138.base, #t~string138.offset := #Ultimate.allocOnStack(30);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(9);call #t~string140.base, #t~string140.offset := #Ultimate.allocOnStack(25);~__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;~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;~__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;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 252#L-1true havoc main_#res;havoc main_#t~nondet88, main_#t~ret89, main_~retValue_acc~40, main_~tmp~17;main_~retValue_acc~40 := main_#t~nondet88;havoc main_#t~nondet88;havoc main_~tmp~17; 320#L77true 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; 441#L85true main_#t~ret89 := valid_product_#res;main_~tmp~17 := main_#t~ret89;havoc main_#t~ret89; 34#L2437true assume 0 != main_~tmp~17;havoc setup_#t~nondet83, setup_#t~nondet85, setup_#t~nondet87, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.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_tmp3~4.base, setup_~__cil_tmp3~4.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;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 391#L2143true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 232#L2149-2true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 133#L1708true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 477#L1714-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string82.base, #t~string82.offset;havoc setup_#t~nondet83;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 386#L2143-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 243#L2149-5true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 138#L1708-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 456#L1714-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string84.base, #t~string84.offset;havoc setup_#t~nondet85;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 387#L2143-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 211#L2149-8true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 122#L1708-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 462#L1714-8true setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset := #t~string86.base, #t~string86.offset;havoc setup_#t~nondet87; 113#L2424true havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, 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~8, test_~tmp___0~3, test_~tmp___1~2, test_~tmp___2~2, test_~tmp___3~1, test_~tmp___4~1, 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~8;havoc test_~tmp___0~3;havoc test_~tmp___1~2;havoc test_~tmp___2~2;havoc test_~tmp___3~1;havoc test_~tmp___4~1;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; 433#L1054-1true [2020-12-01 15:01:46,795 INFO L796 eck$LassoCheckResult]: Loop: 433#L1054-1true assume !false; 298#L912true assume test_~splverifierCounter~0 < 4; 367#L913true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 89#L919true assume !(0 == test_~op1~0); 376#L932true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet34;havoc test_#t~nondet34; 141#L937true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 433#L1054-1true [2020-12-01 15:01:46,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:46,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-12-01 15:01:46,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:01:46,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748495677] [2020-12-01 15:01:46,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:01:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:47,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:01:47,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748495677] [2020-12-01 15:01:47,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:01:47,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:01:47,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481139972] [2020-12-01 15:01:47,240 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:01:47,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:47,245 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-12-01 15:01:47,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:01:47,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538087284] [2020-12-01 15:01:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:01:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:01:47,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:01:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:01:47,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:01:47,348 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:01:47,431 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:01:47,432 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:01:47,432 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:01:47,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:01:47,433 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:01:47,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:47,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:01:47,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:01:47,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product28.cil.c_Iteration1_Loop [2020-12-01 15:01:47,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:01:47,434 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:01:47,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:47,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:47,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:47,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:47,568 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:01:47,569 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:01:47,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:01:47,585 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:01:47,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:01:47,651 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:47,674 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:01:47,712 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:01:47,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:01:47,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:01:47,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:01:47,712 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:01:47,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:47,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:01:47,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:01:47,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product28.cil.c_Iteration1_Loop [2020-12-01 15:01:47,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:01:47,713 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:01:47,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:47,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:47,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:47,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:47,859 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:01:47,865 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:47,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:01:47,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:01:47,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:01:47,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:01:47,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:01:47,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:01:47,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:01:47,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:01:47,895 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:01:47,901 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:01:47,901 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:47,947 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:01:47,960 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:01:47,962 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:01:47,963 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2020-12-01 15:01:48,018 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:01:48,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:48,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:01:48,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:01:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:48,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:01:48,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:01:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:01:48,588 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 [2020-12-01 15:01:48,590 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 477 states. Second operand 4 states. [2020-12-01 15:01:48,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 477 states.. Second operand 4 states. Result 2054 states and 3596 transitions. Complement of second has 7 states. [2020-12-01 15:01:48,922 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 [2020-12-01 15:01:48,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:01:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2028 transitions. [2020-12-01 15:01:48,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2028 transitions. Stem has 18 letters. Loop has 6 letters. [2020-12-01 15:01:48,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:01:48,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2028 transitions. Stem has 24 letters. Loop has 6 letters. [2020-12-01 15:01:48,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:01:48,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2028 transitions. Stem has 18 letters. Loop has 12 letters. [2020-12-01 15:01:48,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:01:48,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2054 states and 3596 transitions. [2020-12-01 15:01:48,974 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 415 [2020-12-01 15:01:48,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2054 states to 863 states and 1568 transitions. [2020-12-01 15:01:48,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 446 [2020-12-01 15:01:49,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 447 [2020-12-01 15:01:49,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 863 states and 1568 transitions. [2020-12-01 15:01:49,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:01:49,004 INFO L692 BuchiCegarLoop]: Abstraction has 863 states and 1568 transitions. [2020-12-01 15:01:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states and 1568 transitions. [2020-12-01 15:01:49,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 448. [2020-12-01 15:01:49,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-12-01 15:01:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 811 transitions. [2020-12-01 15:01:49,078 INFO L715 BuchiCegarLoop]: Abstraction has 448 states and 811 transitions. [2020-12-01 15:01:49,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:01:49,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:01:49,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:01:49,084 INFO L87 Difference]: Start difference. First operand 448 states and 811 transitions. Second operand 3 states. [2020-12-01 15:01:49,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:01:49,151 INFO L93 Difference]: Finished difference Result 876 states and 1587 transitions. [2020-12-01 15:01:49,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:01:49,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 876 states and 1587 transitions. [2020-12-01 15:01:49,162 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 416 [2020-12-01 15:01:49,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 876 states to 876 states and 1587 transitions. [2020-12-01 15:01:49,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 458 [2020-12-01 15:01:49,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 458 [2020-12-01 15:01:49,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 876 states and 1587 transitions. [2020-12-01 15:01:49,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:01:49,175 INFO L692 BuchiCegarLoop]: Abstraction has 876 states and 1587 transitions. [2020-12-01 15:01:49,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states and 1587 transitions. [2020-12-01 15:01:49,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 447. [2020-12-01 15:01:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-12-01 15:01:49,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 807 transitions. [2020-12-01 15:01:49,194 INFO L715 BuchiCegarLoop]: Abstraction has 447 states and 807 transitions. [2020-12-01 15:01:49,194 INFO L595 BuchiCegarLoop]: Abstraction has 447 states and 807 transitions. [2020-12-01 15:01:49,194 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:01:49,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 447 states and 807 transitions. [2020-12-01 15:01:49,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2020-12-01 15:01:49,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:01:49,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:01:49,203 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:01:49,204 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:01:49,204 INFO L794 eck$LassoCheckResult]: Stem: 4228#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(10);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(16);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(20);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string31.base, #t~string31.offset, 1);call write~init~int(115, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(10, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(10);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(12);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(10);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(18);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(16);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(16);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(44);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(44);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(9);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(11);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(19);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string94.base, #t~string94.offset, 1);call write~init~int(100, #t~string94.base, 1 + #t~string94.offset, 1);call write~init~int(10, #t~string94.base, 2 + #t~string94.offset, 1);call write~init~int(0, #t~string94.base, 3 + #t~string94.offset, 1);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string97.base, #t~string97.offset, 1);call write~init~int(100, #t~string97.base, 1 + #t~string97.offset, 1);call write~init~int(10, #t~string97.base, 2 + #t~string97.offset, 1);call write~init~int(0, #t~string97.base, 3 + #t~string97.offset, 1);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(13);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(30);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(9);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(21);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(30);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(9);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(21);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(30);call #t~string136.base, #t~string136.offset := #Ultimate.allocOnStack(9);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(25);call #t~string138.base, #t~string138.offset := #Ultimate.allocOnStack(30);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(9);call #t~string140.base, #t~string140.offset := #Ultimate.allocOnStack(25);~__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;~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;~__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;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 4001#L-1 havoc main_#res;havoc main_#t~nondet88, main_#t~ret89, main_~retValue_acc~40, main_~tmp~17;main_~retValue_acc~40 := main_#t~nondet88;havoc main_#t~nondet88;havoc main_~tmp~17; 4002#L77 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; 4229#L85 main_#t~ret89 := valid_product_#res;main_~tmp~17 := main_#t~ret89;havoc main_#t~ret89; 4126#L2437 assume 0 != main_~tmp~17;havoc setup_#t~nondet83, setup_#t~nondet85, setup_#t~nondet87, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.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_tmp3~4.base, setup_~__cil_tmp3~4.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;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 4127#L2143 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3965#L2149-2 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 4346#L1708 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4020#L1714-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string82.base, #t~string82.offset;havoc setup_#t~nondet83;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 4336#L2143-2 assume !(1 == setClientId_~handle); 3993#L2146-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 3994#L2149-5 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 4347#L1708-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3968#L1714-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string84.base, #t~string84.offset;havoc setup_#t~nondet85;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 4337#L2143-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4280#L2149-8 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 4335#L1708-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3981#L1714-8 setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset := #t~string86.base, #t~string86.offset;havoc setup_#t~nondet87; 4329#L2424 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, 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~8, test_~tmp___0~3, test_~tmp___1~2, test_~tmp___2~2, test_~tmp___3~1, test_~tmp___4~1, 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~8;havoc test_~tmp___0~3;havoc test_~tmp___1~2;havoc test_~tmp___2~2;havoc test_~tmp___3~1;havoc test_~tmp___4~1;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; 4330#L1054-1 assume !false; 4118#L912 [2020-12-01 15:01:49,204 INFO L796 eck$LassoCheckResult]: Loop: 4118#L912 assume test_~splverifierCounter~0 < 4; 4119#L913 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 4242#L919 assume !(0 == test_~op1~0); 4110#L932 assume !(0 == test_~op2~0); 4323#L943 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet35;havoc test_#t~nondet35; 4344#L948 assume 0 != test_~tmp___7~0;setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := ~rjh~0, 0;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 4338#L1708-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4282#L1714-11 test_~op3~0 := 1; 4053#L1054-1 assume !false; 4118#L912 [2020-12-01 15:01:49,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:49,205 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-12-01 15:01:49,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:01:49,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158573834] [2020-12-01 15:01:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:01:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:01:49,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158573834] [2020-12-01 15:01:49,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:01:49,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:01:49,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162366264] [2020-12-01 15:01:49,385 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:01:49,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:49,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-12-01 15:01:49,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:01:49,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249240485] [2020-12-01 15:01:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:01:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:01:49,395 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:01:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:01:49,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:01:49,411 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:01:49,519 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:01:49,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:01:49,520 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:01:49,520 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:01:49,520 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:01:49,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:49,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:01:49,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:01:49,521 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product28.cil.c_Iteration2_Loop [2020-12-01 15:01:49,521 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:01:49,521 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:01:49,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,811 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:01:49,813 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:01:49,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:01:49,827 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:01:49,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:01:49,887 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:49,950 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:01:49,958 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:01:49,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:01:49,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:01:49,959 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:01:49,959 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:01:49,959 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:49,959 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:01:49,959 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:01:49,959 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product28.cil.c_Iteration2_Loop [2020-12-01 15:01:49,959 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:01:49,959 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:01:49,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:49,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:50,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:01:50,218 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:01:50,218 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:50,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:01:50,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:01:50,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:01:50,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:01:50,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:01:50,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:01:50,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:01:50,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:01:50,248 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:01:50,252 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:01:50,252 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b775ee-712c-40c9-9b12-7b2c1df77a71/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:01:50,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:01:50,263 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:01:50,263 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:01:50,263 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:01:50,301 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:01:50,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:50,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:01:50,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:01:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:50,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:01:50,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:01:50,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:01:50,730 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 [2020-12-01 15:01:50,730 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 447 states and 807 transitions. cyclomatic complexity: 362 Second operand 4 states. [2020-12-01 15:01:50,786 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 447 states and 807 transitions. cyclomatic complexity: 362. Second operand 4 states. Result 867 states and 1573 transitions. Complement of second has 6 states. [2020-12-01 15:01:50,787 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 [2020-12-01 15:01:50,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:01:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2020-12-01 15:01:50,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 20 letters. Loop has 9 letters. [2020-12-01 15:01:50,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:01:50,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 29 letters. Loop has 9 letters. [2020-12-01 15:01:50,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:01:50,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 20 letters. Loop has 18 letters. [2020-12-01 15:01:50,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:01:50,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 867 states and 1573 transitions. [2020-12-01 15:01:50,811 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:01:50,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 867 states to 0 states and 0 transitions. [2020-12-01 15:01:50,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:01:50,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:01:50,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:01:50,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:01:50,812 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:01:50,812 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:01:50,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:01:50,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:01:50,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:01:50,814 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-12-01 15:01:50,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:01:50,814 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-12-01 15:01:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:01:50,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-12-01 15:01:50,815 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:01:50,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:01:50,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:01:50,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:01:50,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:01:50,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:01:50,816 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:01:50,816 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:01:50,816 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:01:50,816 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:01:50,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:01:50,816 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:01:50,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:01:50,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:01:50 BoogieIcfgContainer [2020-12-01 15:01:50,824 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:01:50,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:01:50,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:01:50,825 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:01:50,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:01:46" (3/4) ... [2020-12-01 15:01:50,829 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:01:50,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:01:50,832 INFO L168 Benchmark]: Toolchain (without parser) took 8764.49 ms. Allocated memory was 83.9 MB in the beginning and 211.8 MB in the end (delta: 127.9 MB). Free memory was 51.1 MB in the beginning and 127.1 MB in the end (delta: -76.0 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:50,833 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 83.9 MB. Free memory was 40.9 MB in the beginning and 40.8 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:01:50,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1111.95 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 74.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:50,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.69 ms. Allocated memory is still 102.8 MB. Free memory was 74.5 MB in the beginning and 65.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:50,838 INFO L168 Benchmark]: Boogie Preprocessor took 184.62 ms. Allocated memory is still 102.8 MB. Free memory was 65.5 MB in the beginning and 58.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:50,845 INFO L168 Benchmark]: RCFGBuilder took 3051.85 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 58.6 MB in the beginning and 62.1 MB in the end (delta: -3.5 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:50,846 INFO L168 Benchmark]: BuchiAutomizer took 4238.74 ms. Allocated memory was 125.8 MB in the beginning and 211.8 MB in the end (delta: 86.0 MB). Free memory was 62.1 MB in the beginning and 128.2 MB in the end (delta: -66.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:50,846 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 211.8 MB. Free memory was 128.2 MB in the beginning and 127.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:01:50,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 83.9 MB. Free memory was 40.9 MB in the beginning and 40.8 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1111.95 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 74.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 161.69 ms. Allocated memory is still 102.8 MB. Free memory was 74.5 MB in the beginning and 65.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 184.62 ms. Allocated memory is still 102.8 MB. Free memory was 65.5 MB in the beginning and 58.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3051.85 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 58.6 MB in the beginning and 62.1 MB in the end (delta: -3.5 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4238.74 ms. Allocated memory was 125.8 MB in the beginning and 211.8 MB in the end (delta: 86.0 MB). Free memory was 62.1 MB in the beginning and 128.2 MB in the end (delta: -66.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.09 ms. Allocated memory is still 211.8 MB. Free memory was 128.2 MB in the beginning and 127.1 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 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * splverifierCounter + 7 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 844 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 447 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2852 SDtfs, 2440 SDslu, 3491 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: inital38 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf90 smp100 dnf134 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 95ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...