./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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 eb8f08f8ba9fbcaa5eb5da3695b78ff747dcddff ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:46:19,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:46:19,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:46:19,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:46:19,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:46:19,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:46:19,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:46:19,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:46:19,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:46:19,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:46:19,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:46:19,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:46:19,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:46:19,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:46:19,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:46:19,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:46:19,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:46:19,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:46:19,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:46:19,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:46:19,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:46:19,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:46:19,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:46:19,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:46:19,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:46:19,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:46:19,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:46:19,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:46:19,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:46:19,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:46:19,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:46:19,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:46:19,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:46:19,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:46:19,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:46:19,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:46:19,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:46:19,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:46:19,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:46:19,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:46:19,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:46:19,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:46:19,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:46:19,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:46:19,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:46:19,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:46:19,603 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:46:19,603 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:46:19,603 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:46:19,604 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:46:19,604 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:46:19,604 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:46:19,605 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:46:19,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:46:19,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:46:19,606 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:46:19,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:46:19,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:46:19,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:46:19,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:46:19,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:46:19,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:46:19,608 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:46:19,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:46:19,608 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:46:19,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:46:19,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:46:19,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:46:19,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:46:19,609 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:46:19,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:46:19,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:46:19,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:46:19,612 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:46:19,613 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:46:19,613 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_73018cd0-b7e2-416e-a987-52bcf5428e34/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb8f08f8ba9fbcaa5eb5da3695b78ff747dcddff [2020-11-29 18:46:19,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:46:19,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:46:19,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:46:19,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:46:19,921 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:46:19,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c [2020-11-29 18:46:20,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/data/6ac6aa426/04d30ed67a974b13aec7d53738fa431d/FLAG831cd29e3 [2020-11-29 18:46:20,688 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:46:20,689 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c [2020-11-29 18:46:20,721 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/data/6ac6aa426/04d30ed67a974b13aec7d53738fa431d/FLAG831cd29e3 [2020-11-29 18:46:20,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/data/6ac6aa426/04d30ed67a974b13aec7d53738fa431d [2020-11-29 18:46:20,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:46:20,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:46:20,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:46:20,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:46:20,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:46:20,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:46:20" (1/1) ... [2020-11-29 18:46:20,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51eadd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:20, skipping insertion in model container [2020-11-29 18:46:20,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:46:20" (1/1) ... [2020-11-29 18:46:20,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:46:20,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:46:21,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:46:21,660 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:46:21,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:46:21,995 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:46:21,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21 WrapperNode [2020-11-29 18:46:21,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:46:21,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:46:21,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:46:21,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:46:22,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:22,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:27,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:46:27,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:46:27,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:46:27,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:46:27,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:27,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:28,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:28,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:30,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:30,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:31,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... [2020-11-29 18:46:31,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:46:31,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:46:31,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:46:31,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:46:31,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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 [2020-11-29 18:46:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-11-29 18:46:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:46:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:46:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:46:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:47:27,802 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:47:27,802 INFO L298 CfgBuilder]: Removed 35995 assume(true) statements. [2020-11-29 18:47:27,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:27 BoogieIcfgContainer [2020-11-29 18:47:27,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:47:27,837 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:47:27,837 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:47:27,840 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:47:27,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:47:27,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:46:20" (1/3) ... [2020-11-29 18:47:27,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53f0e9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:47:27, skipping insertion in model container [2020-11-29 18:47:27,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:47:27,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:46:21" (2/3) ... [2020-11-29 18:47:27,844 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53f0e9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:47:27, skipping insertion in model container [2020-11-29 18:47:27,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:47:27,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:27" (3/3) ... [2020-11-29 18:47:27,846 INFO L373 chiAutomizerObserver]: Analyzing ICFG email_spec8_productSimulator.cil.c [2020-11-29 18:47:27,898 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:47:27,899 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:47:27,899 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:47:27,899 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:47:27,899 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:47:27,899 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:47:27,900 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:47:27,900 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:47:28,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34804 states. [2020-11-29 18:47:28,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 270 [2020-11-29 18:47:28,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:47:28,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:47:28,791 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:28,791 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:28,791 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:47:28,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34804 states. [2020-11-29 18:47:29,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 270 [2020-11-29 18:47:29,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:47:29,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:47:29,463 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:29,463 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:29,475 INFO L794 eck$LassoCheckResult]: Stem: 500#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(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string27.base, #t~string27.offset, 1);call write~init~int(115, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(10, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(17);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(17);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(17);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(10);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(12);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(10);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(18);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(16);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(21);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(13);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(16);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(25);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(10);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(34);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(30);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(16);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(20);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(22);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(21);call #t~string145.base, #t~string145.offset := #Ultimate.allocOnStack(44);call #t~string150.base, #t~string150.offset := #Ultimate.allocOnStack(44);call #t~string152.base, #t~string152.offset := #Ultimate.allocOnStack(9);call #t~string154.base, #t~string154.offset := #Ultimate.allocOnStack(9);call #t~string156.base, #t~string156.offset := #Ultimate.allocOnStack(11);call #t~string160.base, #t~string160.offset := #Ultimate.allocOnStack(19);call #t~string163.base, #t~string163.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string163.base, #t~string163.offset, 1);call write~init~int(100, #t~string163.base, 1 + #t~string163.offset, 1);call write~init~int(10, #t~string163.base, 2 + #t~string163.offset, 1);call write~init~int(0, #t~string163.base, 3 + #t~string163.offset, 1);call #t~string166.base, #t~string166.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string166.base, #t~string166.offset, 1);call write~init~int(100, #t~string166.base, 1 + #t~string166.offset, 1);call write~init~int(10, #t~string166.base, 2 + #t~string166.offset, 1);call write~init~int(0, #t~string166.base, 3 + #t~string166.offset, 1);~__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;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__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;~in_encrypted~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 13887#L-1true havoc main_#res;havoc main_#t~ret158, main_~retValue_acc~44, main_~tmp~26;havoc main_~retValue_acc~44;havoc main_~tmp~26;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 9617#L88true havoc select_features_#t~ret8, select_features_#t~ret9, select_features_#t~ret10, select_features_#t~ret11, select_features_#t~ret12, select_features_#t~ret13, select_features_#t~ret14, select_features_#t~ret15;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 5171#L61true select_features_#t~ret8 := select_one_#res;~__SELECTED_FEATURE_Base~0 := select_features_#t~ret8;havoc select_features_#t~ret8;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 5165#L61-1true select_features_#t~ret9 := select_one_#res;~__SELECTED_FEATURE_Keys~0 := select_features_#t~ret9;havoc select_features_#t~ret9;~__SELECTED_FEATURE_Encrypt~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 5154#L61-2true select_features_#t~ret10 := select_one_#res;~__SELECTED_FEATURE_AutoResponder~0 := select_features_#t~ret10;havoc select_features_#t~ret10;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 5148#L61-3true select_features_#t~ret11 := select_one_#res;~__SELECTED_FEATURE_AddressBook~0 := select_features_#t~ret11;havoc select_features_#t~ret11;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 5206#L61-4true select_features_#t~ret12 := select_one_#res;~__SELECTED_FEATURE_Sign~0 := select_features_#t~ret12;havoc select_features_#t~ret12;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 5200#L61-5true select_features_#t~ret13 := select_one_#res;~__SELECTED_FEATURE_Forward~0 := select_features_#t~ret13;havoc select_features_#t~ret13;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 5189#L61-6true select_features_#t~ret14 := select_one_#res;~__SELECTED_FEATURE_Verify~0 := select_features_#t~ret14;havoc select_features_#t~ret14;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 5183#L61-7true select_features_#t~ret15 := select_one_#res;~__SELECTED_FEATURE_Decrypt~0 := select_features_#t~ret15;havoc select_features_#t~ret15; 5821#L80true havoc valid_product_#res;havoc valid_product_~retValue_acc~1, valid_product_~tmp~0;havoc valid_product_~retValue_acc~1;havoc valid_product_~tmp~0; 10258#L96true assume !(0 == ~__SELECTED_FEATURE_Encrypt~0); 10141#L99true assume !(0 != ~__SELECTED_FEATURE_Decrypt~0);valid_product_~tmp~0 := 0; 10140#L99-1true valid_product_~retValue_acc~1 := valid_product_~tmp~0;valid_product_#res := valid_product_~retValue_acc~1; 1651#L156true main_#t~ret158 := valid_product_#res;main_~tmp~26 := main_#t~ret158;havoc main_#t~ret158; 23286#L3317true assume 0 != main_~tmp~26;havoc setup_#t~nondet153, setup_#t~nondet155, setup_#t~nondet157, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset, setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset;havoc setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.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; 33174#L3161true assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_bob__before__Keys_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__before__Keys_~bob___0;setup_bob__before__Keys_~bob___0 := setup_bob__before__Keys_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__before__Keys_~bob___0, setup_bob__before__Keys_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 31140#L1885-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 23275#L1891-5true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string152.base, #t~string152.offset;havoc setup_#t~nondet153;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0; 34368#L3199true assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_rjh__before__Keys_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__before__Keys_~rjh___0;setup_rjh__before__Keys_~rjh___0 := setup_rjh__before__Keys_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__before__Keys_~rjh___0, setup_rjh__before__Keys_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 31137#L1885-6true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 23273#L1891-11true setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string154.base, #t~string154.offset;havoc setup_#t~nondet155;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0; 27079#L3237true assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_chuck__before__Keys_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__before__Keys_~chuck___0;setup_chuck__before__Keys_~chuck___0 := setup_chuck__before__Keys_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__before__Keys_~chuck___0, setup_chuck__before__Keys_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 31135#L1885-10true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 23271#L1891-17true setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset := #t~string156.base, #t~string156.offset;havoc setup_#t~nondet157; 23267#L3304true havoc test_#t~nondet16, test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, 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~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 30871#L403-1true [2020-11-29 18:47:29,477 INFO L796 eck$LassoCheckResult]: Loop: 30871#L403-1true assume !false; 2807#L212true assume test_~splverifierCounter~0 < 4; 2795#L213true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 30#L219true assume 0 == test_~op1~0;test_~tmp___9~0 := test_#t~nondet16;havoc test_#t~nondet16; 28#L223true assume 0 != test_~tmp___9~0; 13#L224true assume !(0 != ~__SELECTED_FEATURE_Keys~0); 12#L224-1true test_~op1~0 := 1; 30871#L403-1true [2020-11-29 18:47:29,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:29,502 INFO L82 PathProgramCache]: Analyzing trace with hash -2102633898, now seen corresponding path program 1 times [2020-11-29 18:47:29,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:47:29,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848595755] [2020-11-29 18:47:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:47:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:29,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:29,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848595755] [2020-11-29 18:47:29,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:29,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:47:29,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495460395] [2020-11-29 18:47:30,003 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:47:30,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:30,005 INFO L82 PathProgramCache]: Analyzing trace with hash 569592791, now seen corresponding path program 1 times [2020-11-29 18:47:30,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:47:30,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378458575] [2020-11-29 18:47:30,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:47:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:30,025 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:30,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:30,074 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:47:30,126 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:47:30,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:47:30,127 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:47:30,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:47:30,128 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:47:30,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:30,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:47:30,129 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:47:30,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec8_productSimulator.cil.c_Iteration1_Loop [2020-11-29 18:47:30,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:47:30,129 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:47:30,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:30,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:30,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:30,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:30,281 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:47:30,281 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:30,305 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:47:30,305 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:30,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:47:30,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:47:30,349 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:47:30,369 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:47:30,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:47:30,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:47:30,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:47:30,370 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:47:30,370 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:30,370 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:47:30,370 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:47:30,370 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec8_productSimulator.cil.c_Iteration1_Loop [2020-11-29 18:47:30,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:47:30,370 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:47:30,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:30,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:30,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:30,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:30,554 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:47:30,557 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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) [2020-11-29 18:47:30,565 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 [2020-11-29 18:47:30,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:47:30,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:47:30,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:47:30,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:47:30,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:47:30,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:47:30,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:30,578 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:47:30,617 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:47:30,617 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_73018cd0-b7e2-416e-a987-52bcf5428e34/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) [2020-11-29 18:47:30,666 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:47:30,666 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:47:30,667 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:47:30,668 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op1~0) = -2*ULTIMATE.start_test_~op1~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:30,708 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:47:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:30,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:47:30,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:31,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:47:31,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:31,091 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 [2020-11-29 18:47:31,092 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34804 states. Second operand 4 states. [2020-11-29 18:47:36,190 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34804 states.. Second operand 4 states. Result 173263 states and 278336 transitions. Complement of second has 7 states. [2020-11-29 18:47:36,190 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 [2020-11-29 18:47:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 18:47:36,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166916 transitions. [2020-11-29 18:47:36,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 166916 transitions. Stem has 27 letters. Loop has 7 letters. [2020-11-29 18:47:36,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:36,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 166916 transitions. Stem has 34 letters. Loop has 7 letters. [2020-11-29 18:47:36,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:36,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 166916 transitions. Stem has 27 letters. Loop has 14 letters. [2020-11-29 18:47:36,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:36,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173263 states and 278336 transitions. [2020-11-29 18:47:38,184 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 435 [2020-11-29 18:47:38,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173263 states to 990 states and 1812 transitions. [2020-11-29 18:47:38,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 501 [2020-11-29 18:47:38,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 502 [2020-11-29 18:47:38,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 990 states and 1812 transitions. [2020-11-29 18:47:38,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:47:38,238 INFO L691 BuchiCegarLoop]: Abstraction has 990 states and 1812 transitions. [2020-11-29 18:47:38,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states and 1812 transitions. [2020-11-29 18:47:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 555. [2020-11-29 18:47:38,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-11-29 18:47:38,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1011 transitions. [2020-11-29 18:47:38,352 INFO L714 BuchiCegarLoop]: Abstraction has 555 states and 1011 transitions. [2020-11-29 18:47:38,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:47:38,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:47:38,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:47:38,360 INFO L87 Difference]: Start difference. First operand 555 states and 1011 transitions. Second operand 5 states. [2020-11-29 18:47:38,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:38,439 INFO L93 Difference]: Finished difference Result 558 states and 1013 transitions. [2020-11-29 18:47:38,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:47:38,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 558 states and 1013 transitions. [2020-11-29 18:47:38,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 218 [2020-11-29 18:47:38,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 558 states to 555 states and 1004 transitions. [2020-11-29 18:47:38,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 284 [2020-11-29 18:47:38,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 284 [2020-11-29 18:47:38,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 555 states and 1004 transitions. [2020-11-29 18:47:38,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:47:38,459 INFO L691 BuchiCegarLoop]: Abstraction has 555 states and 1004 transitions. [2020-11-29 18:47:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states and 1004 transitions. [2020-11-29 18:47:38,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2020-11-29 18:47:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-11-29 18:47:38,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1004 transitions. [2020-11-29 18:47:38,479 INFO L714 BuchiCegarLoop]: Abstraction has 555 states and 1004 transitions. [2020-11-29 18:47:38,480 INFO L594 BuchiCegarLoop]: Abstraction has 555 states and 1004 transitions. [2020-11-29 18:47:38,480 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:47:38,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 555 states and 1004 transitions. [2020-11-29 18:47:38,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 218 [2020-11-29 18:47:38,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:47:38,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:47:38,484 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:38,484 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:38,485 INFO L794 eck$LassoCheckResult]: Stem: 209678#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(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string27.base, #t~string27.offset, 1);call write~init~int(115, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(10, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(17);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(17);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(17);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(10);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(12);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(10);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(18);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(16);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(21);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(13);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(16);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(25);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(10);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(34);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(30);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(16);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(20);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(22);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(21);call #t~string145.base, #t~string145.offset := #Ultimate.allocOnStack(44);call #t~string150.base, #t~string150.offset := #Ultimate.allocOnStack(44);call #t~string152.base, #t~string152.offset := #Ultimate.allocOnStack(9);call #t~string154.base, #t~string154.offset := #Ultimate.allocOnStack(9);call #t~string156.base, #t~string156.offset := #Ultimate.allocOnStack(11);call #t~string160.base, #t~string160.offset := #Ultimate.allocOnStack(19);call #t~string163.base, #t~string163.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string163.base, #t~string163.offset, 1);call write~init~int(100, #t~string163.base, 1 + #t~string163.offset, 1);call write~init~int(10, #t~string163.base, 2 + #t~string163.offset, 1);call write~init~int(0, #t~string163.base, 3 + #t~string163.offset, 1);call #t~string166.base, #t~string166.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string166.base, #t~string166.offset, 1);call write~init~int(100, #t~string166.base, 1 + #t~string166.offset, 1);call write~init~int(10, #t~string166.base, 2 + #t~string166.offset, 1);call write~init~int(0, #t~string166.base, 3 + #t~string166.offset, 1);~__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;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__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;~in_encrypted~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 209378#L-1 havoc main_#res;havoc main_#t~ret158, main_~retValue_acc~44, main_~tmp~26;havoc main_~retValue_acc~44;havoc main_~tmp~26;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 209379#L88 havoc select_features_#t~ret8, select_features_#t~ret9, select_features_#t~ret10, select_features_#t~ret11, select_features_#t~ret12, select_features_#t~ret13, select_features_#t~ret14, select_features_#t~ret15;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 209709#L61 select_features_#t~ret8 := select_one_#res;~__SELECTED_FEATURE_Base~0 := select_features_#t~ret8;havoc select_features_#t~ret8;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 209827#L61-1 select_features_#t~ret9 := select_one_#res;~__SELECTED_FEATURE_Keys~0 := select_features_#t~ret9;havoc select_features_#t~ret9;~__SELECTED_FEATURE_Encrypt~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 209824#L61-2 select_features_#t~ret10 := select_one_#res;~__SELECTED_FEATURE_AutoResponder~0 := select_features_#t~ret10;havoc select_features_#t~ret10;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 209822#L61-3 select_features_#t~ret11 := select_one_#res;~__SELECTED_FEATURE_AddressBook~0 := select_features_#t~ret11;havoc select_features_#t~ret11;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 209823#L61-4 select_features_#t~ret12 := select_one_#res;~__SELECTED_FEATURE_Sign~0 := select_features_#t~ret12;havoc select_features_#t~ret12;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 209833#L61-5 select_features_#t~ret13 := select_one_#res;~__SELECTED_FEATURE_Forward~0 := select_features_#t~ret13;havoc select_features_#t~ret13;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 209832#L61-6 select_features_#t~ret14 := select_one_#res;~__SELECTED_FEATURE_Verify~0 := select_features_#t~ret14;havoc select_features_#t~ret14;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 209830#L61-7 select_features_#t~ret15 := select_one_#res;~__SELECTED_FEATURE_Decrypt~0 := select_features_#t~ret15;havoc select_features_#t~ret15; 209831#L80 havoc valid_product_#res;havoc valid_product_~retValue_acc~1, valid_product_~tmp~0;havoc valid_product_~retValue_acc~1;havoc valid_product_~tmp~0; 209848#L96 assume 0 == ~__SELECTED_FEATURE_Encrypt~0; 209717#L100 assume 0 == ~__SELECTED_FEATURE_Decrypt~0; 209747#L105 assume 0 == ~__SELECTED_FEATURE_Encrypt~0; 209416#L110 assume 0 == ~__SELECTED_FEATURE_Sign~0; 209458#L115 assume 0 == ~__SELECTED_FEATURE_Verify~0; 209418#L120 assume 0 == ~__SELECTED_FEATURE_Sign~0; 209419#L125 assume 0 != ~__SELECTED_FEATURE_Base~0;valid_product_~tmp~0 := 1; 209465#L99-1 valid_product_~retValue_acc~1 := valid_product_~tmp~0;valid_product_#res := valid_product_~retValue_acc~1; 209702#L156 main_#t~ret158 := valid_product_#res;main_~tmp~26 := main_#t~ret158;havoc main_#t~ret158; 209868#L3317 assume 0 != main_~tmp~26;havoc setup_#t~nondet153, setup_#t~nondet155, setup_#t~nondet157, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset, setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset;havoc setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.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; 209810#L3161 assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_bob__before__Keys_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__before__Keys_~bob___0;setup_bob__before__Keys_~bob___0 := setup_bob__before__Keys_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__before__Keys_~bob___0, setup_bob__before__Keys_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 209811#L1885-2 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 209664#L1891-5 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string152.base, #t~string152.offset;havoc setup_#t~nondet153;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0; 209590#L3199 assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_rjh__before__Keys_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__before__Keys_~rjh___0;setup_rjh__before__Keys_~rjh___0 := setup_rjh__before__Keys_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__before__Keys_~rjh___0, setup_rjh__before__Keys_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 209591#L1885-6 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 209719#L1891-11 setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string154.base, #t~string154.offset;havoc setup_#t~nondet155;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0; 209703#L3237 assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_chuck__before__Keys_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__before__Keys_~chuck___0;setup_chuck__before__Keys_~chuck___0 := setup_chuck__before__Keys_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__before__Keys_~chuck___0, setup_chuck__before__Keys_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 209704#L1885-10 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 209557#L1891-17 setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset := #t~string156.base, #t~string156.offset;havoc setup_#t~nondet157; 209572#L3304 havoc test_#t~nondet16, test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, 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~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 209814#L403-1 assume !false; 209798#L212 [2020-11-29 18:47:38,485 INFO L796 eck$LassoCheckResult]: Loop: 209798#L212 assume test_~splverifierCounter~0 < 4; 209516#L213 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 209337#L219 assume !(0 == test_~op1~0); 209338#L236 assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet17;havoc test_#t~nondet17; 209349#L241 assume 0 != test_~tmp___8~0; 209351#L242 assume !(0 != ~__SELECTED_FEATURE_AutoResponder~0); 209649#L242-1 test_~op2~0 := 1; 209359#L403-1 assume !false; 209798#L212 [2020-11-29 18:47:38,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:38,486 INFO L82 PathProgramCache]: Analyzing trace with hash 507241003, now seen corresponding path program 1 times [2020-11-29 18:47:38,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:47:38,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007148897] [2020-11-29 18:47:38,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:47:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:38,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007148897] [2020-11-29 18:47:38,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:38,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:47:38,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883370168] [2020-11-29 18:47:38,627 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:47:38,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:38,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1422577527, now seen corresponding path program 1 times [2020-11-29 18:47:38,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:47:38,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991010394] [2020-11-29 18:47:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:47:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:38,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:38,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:38,651 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:47:38,693 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:47:38,693 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:47:38,693 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:47:38,693 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:47:38,693 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:47:38,693 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:38,693 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:47:38,694 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:47:38,694 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec8_productSimulator.cil.c_Iteration2_Loop [2020-11-29 18:47:38,694 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:47:38,694 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:47:38,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,817 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:47:38,817 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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) [2020-11-29 18:47:38,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:47:38,822 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 [2020-11-29 18:47:38,832 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:47:38,832 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~tmp___8~0=-3, ULTIMATE.start_test_#t~nondet17=-3} Honda state: {ULTIMATE.start_test_~tmp___8~0=-3, ULTIMATE.start_test_#t~nondet17=-3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:38,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:47:38,879 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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) [2020-11-29 18:47:38,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:47:38,923 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:38,930 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:47:38,964 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:47:38,964 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:47:38,964 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:47:38,964 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:47:38,964 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:47:38,965 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:38,965 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:47:38,965 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:47:38,965 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec8_productSimulator.cil.c_Iteration2_Loop [2020-11-29 18:47:38,965 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:47:38,965 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:47:38,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:38,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:39,122 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:47:39,123 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/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) [2020-11-29 18:47:39,130 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 [2020-11-29 18:47:39,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:47:39,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:47:39,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:47:39,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:47:39,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:47:39,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:47:39,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:39,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:47:39,142 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:47:39,142 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_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:47:39,153 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:47:39,154 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:47:39,154 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:47:39,154 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:39,189 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:47:39,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:39,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:47:39,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:39,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:47:39,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:39,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:39,424 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 [2020-11-29 18:47:39,424 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 555 states and 1004 transitions. cyclomatic complexity: 451 Second operand 5 states. [2020-11-29 18:47:39,597 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 555 states and 1004 transitions. cyclomatic complexity: 451. Second operand 5 states. Result 2006 states and 3673 transitions. Complement of second has 6 states. [2020-11-29 18:47:39,598 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 [2020-11-29 18:47:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:47:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1089 transitions. [2020-11-29 18:47:39,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 1089 transitions. Stem has 33 letters. Loop has 8 letters. [2020-11-29 18:47:39,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:39,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 1089 transitions. Stem has 41 letters. Loop has 8 letters. [2020-11-29 18:47:39,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:39,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 1089 transitions. Stem has 33 letters. Loop has 16 letters. [2020-11-29 18:47:39,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:39,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2006 states and 3673 transitions. [2020-11-29 18:47:39,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 425 [2020-11-29 18:47:39,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2006 states to 1996 states and 3655 transitions. [2020-11-29 18:47:39,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 494 [2020-11-29 18:47:39,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 496 [2020-11-29 18:47:39,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1996 states and 3655 transitions. [2020-11-29 18:47:39,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:47:39,639 INFO L691 BuchiCegarLoop]: Abstraction has 1996 states and 3655 transitions. [2020-11-29 18:47:39,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states and 3655 transitions. [2020-11-29 18:47:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1039. [2020-11-29 18:47:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-11-29 18:47:39,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1894 transitions. [2020-11-29 18:47:39,673 INFO L714 BuchiCegarLoop]: Abstraction has 1039 states and 1894 transitions. [2020-11-29 18:47:39,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:47:39,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:47:39,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:39,675 INFO L87 Difference]: Start difference. First operand 1039 states and 1894 transitions. Second operand 3 states. [2020-11-29 18:47:40,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:40,389 INFO L93 Difference]: Finished difference Result 1039 states and 1892 transitions. [2020-11-29 18:47:40,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:47:40,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1892 transitions. [2020-11-29 18:47:40,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 213 [2020-11-29 18:47:40,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 1039 states and 1892 transitions. [2020-11-29 18:47:40,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 281 [2020-11-29 18:47:40,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2020-11-29 18:47:40,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1039 states and 1892 transitions. [2020-11-29 18:47:40,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:47:40,405 INFO L691 BuchiCegarLoop]: Abstraction has 1039 states and 1892 transitions. [2020-11-29 18:47:40,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states and 1892 transitions. [2020-11-29 18:47:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2020-11-29 18:47:40,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-11-29 18:47:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1892 transitions. [2020-11-29 18:47:40,427 INFO L714 BuchiCegarLoop]: Abstraction has 1039 states and 1892 transitions. [2020-11-29 18:47:40,427 INFO L594 BuchiCegarLoop]: Abstraction has 1039 states and 1892 transitions. [2020-11-29 18:47:40,427 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:47:40,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1039 states and 1892 transitions. [2020-11-29 18:47:40,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 213 [2020-11-29 18:47:40,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:47:40,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:47:40,435 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:40,436 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:40,437 INFO L794 eck$LassoCheckResult]: Stem: 214468#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(35);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string27.base, #t~string27.offset, 1);call write~init~int(115, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(10, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(17);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(17);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(17);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(10);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(12);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(10);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(18);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(16);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(21);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(13);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(16);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(25);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(10);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(34);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(30);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(16);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(20);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(22);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(21);call #t~string145.base, #t~string145.offset := #Ultimate.allocOnStack(44);call #t~string150.base, #t~string150.offset := #Ultimate.allocOnStack(44);call #t~string152.base, #t~string152.offset := #Ultimate.allocOnStack(9);call #t~string154.base, #t~string154.offset := #Ultimate.allocOnStack(9);call #t~string156.base, #t~string156.offset := #Ultimate.allocOnStack(11);call #t~string160.base, #t~string160.offset := #Ultimate.allocOnStack(19);call #t~string163.base, #t~string163.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string163.base, #t~string163.offset, 1);call write~init~int(100, #t~string163.base, 1 + #t~string163.offset, 1);call write~init~int(10, #t~string163.base, 2 + #t~string163.offset, 1);call write~init~int(0, #t~string163.base, 3 + #t~string163.offset, 1);call #t~string166.base, #t~string166.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string166.base, #t~string166.offset, 1);call write~init~int(100, #t~string166.base, 1 + #t~string166.offset, 1);call write~init~int(10, #t~string166.base, 2 + #t~string166.offset, 1);call write~init~int(0, #t~string166.base, 3 + #t~string166.offset, 1);~__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;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__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;~in_encrypted~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 214158#L-1 havoc main_#res;havoc main_#t~ret158, main_~retValue_acc~44, main_~tmp~26;havoc main_~retValue_acc~44;havoc main_~tmp~26;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 214159#L88 havoc select_features_#t~ret8, select_features_#t~ret9, select_features_#t~ret10, select_features_#t~ret11, select_features_#t~ret12, select_features_#t~ret13, select_features_#t~ret14, select_features_#t~ret15;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 214500#L61 select_features_#t~ret8 := select_one_#res;~__SELECTED_FEATURE_Base~0 := select_features_#t~ret8;havoc select_features_#t~ret8;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 214625#L61-1 select_features_#t~ret9 := select_one_#res;~__SELECTED_FEATURE_Keys~0 := select_features_#t~ret9;havoc select_features_#t~ret9;~__SELECTED_FEATURE_Encrypt~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 214621#L61-2 select_features_#t~ret10 := select_one_#res;~__SELECTED_FEATURE_AutoResponder~0 := select_features_#t~ret10;havoc select_features_#t~ret10;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 214619#L61-3 select_features_#t~ret11 := select_one_#res;~__SELECTED_FEATURE_AddressBook~0 := select_features_#t~ret11;havoc select_features_#t~ret11;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 214620#L61-4 select_features_#t~ret12 := select_one_#res;~__SELECTED_FEATURE_Sign~0 := select_features_#t~ret12;havoc select_features_#t~ret12;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 214631#L61-5 select_features_#t~ret13 := select_one_#res;~__SELECTED_FEATURE_Forward~0 := select_features_#t~ret13;havoc select_features_#t~ret13;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 214630#L61-6 select_features_#t~ret14 := select_one_#res;~__SELECTED_FEATURE_Verify~0 := select_features_#t~ret14;havoc select_features_#t~ret14;havoc select_one_#res;havoc select_one_#t~nondet7, select_one_~retValue_acc~0, select_one_~choice~0;havoc select_one_~retValue_acc~0;select_one_~choice~0 := select_one_#t~nondet7;havoc select_one_#t~nondet7;select_one_~retValue_acc~0 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~0; 214628#L61-7 select_features_#t~ret15 := select_one_#res;~__SELECTED_FEATURE_Decrypt~0 := select_features_#t~ret15;havoc select_features_#t~ret15; 214629#L80 havoc valid_product_#res;havoc valid_product_~retValue_acc~1, valid_product_~tmp~0;havoc valid_product_~retValue_acc~1;havoc valid_product_~tmp~0; 214644#L96 assume !(0 == ~__SELECTED_FEATURE_Encrypt~0); 214501#L99 assume 0 != ~__SELECTED_FEATURE_Decrypt~0; 214502#L100 assume 0 == ~__SELECTED_FEATURE_Decrypt~0; 214537#L105 assume !(0 == ~__SELECTED_FEATURE_Encrypt~0); 214195#L109 assume 0 != ~__SELECTED_FEATURE_Keys~0; 214196#L110 assume 0 == ~__SELECTED_FEATURE_Sign~0; 214245#L115 assume 0 == ~__SELECTED_FEATURE_Verify~0; 214203#L120 assume 0 == ~__SELECTED_FEATURE_Sign~0; 214204#L125 assume 0 != ~__SELECTED_FEATURE_Base~0;valid_product_~tmp~0 := 1; 214246#L99-1 valid_product_~retValue_acc~1 := valid_product_~tmp~0;valid_product_#res := valid_product_~retValue_acc~1; 214491#L156 main_#t~ret158 := valid_product_#res;main_~tmp~26 := main_#t~ret158;havoc main_#t~ret158; 214672#L3317 assume 0 != main_~tmp~26;havoc setup_#t~nondet153, setup_#t~nondet155, setup_#t~nondet157, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset, setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset;havoc setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.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; 214607#L3161 assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_bob__before__Keys_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__before__Keys_~bob___0;setup_bob__before__Keys_~bob___0 := setup_bob__before__Keys_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__before__Keys_~bob___0, setup_bob__before__Keys_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 214608#L1885-2 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 214452#L1891-5 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string152.base, #t~string152.offset;havoc setup_#t~nondet153;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0; 214373#L3199 assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_rjh__before__Keys_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__before__Keys_~rjh___0;setup_rjh__before__Keys_~rjh___0 := setup_rjh__before__Keys_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__before__Keys_~rjh___0, setup_rjh__before__Keys_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 214374#L1885-6 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 214504#L1891-11 setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string154.base, #t~string154.offset;havoc setup_#t~nondet155;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0; 214492#L3237 assume !(0 != ~__SELECTED_FEATURE_Keys~0);setup_chuck__before__Keys_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__before__Keys_~chuck___0;setup_chuck__before__Keys_~chuck___0 := setup_chuck__before__Keys_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__before__Keys_~chuck___0, setup_chuck__before__Keys_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 214493#L1885-10 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 214336#L1891-17 setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset := #t~string156.base, #t~string156.offset;havoc setup_#t~nondet157; 214353#L3304 havoc test_#t~nondet16, test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, 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~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 214591#L403-1 assume !false; 214592#L212 assume test_~splverifierCounter~0 < 4; 214303#L213 [2020-11-29 18:47:40,438 INFO L796 eck$LassoCheckResult]: Loop: 214303#L213 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 214118#L219 assume !(0 == test_~op1~0); 214119#L236 assume !(0 == test_~op2~0); 214131#L254 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet18;havoc test_#t~nondet18; 214404#L259 assume 0 != test_~tmp___7~0; 214405#L260 assume !(0 != ~__SELECTED_FEATURE_Keys~0); 214477#L260-1 test_~op3~0 := 1; 214144#L403-1 assume !false; 214677#L212 assume test_~splverifierCounter~0 < 4; 214303#L213 [2020-11-29 18:47:40,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:40,439 INFO L82 PathProgramCache]: Analyzing trace with hash -307546040, now seen corresponding path program 1 times [2020-11-29 18:47:40,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:47:40,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343781779] [2020-11-29 18:47:40,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:47:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:40,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343781779] [2020-11-29 18:47:40,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:40,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:47:40,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702471172] [2020-11-29 18:47:40,551 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:47:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:40,552 INFO L82 PathProgramCache]: Analyzing trace with hash -986478044, now seen corresponding path program 1 times [2020-11-29 18:47:40,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:47:40,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526653628] [2020-11-29 18:47:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:47:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:40,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:40,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:40,582 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:47:40,618 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:47:40,618 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:47:40,618 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:47:40,618 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:47:40,618 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:47:40,618 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:40,618 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:47:40,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:47:40,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec8_productSimulator.cil.c_Iteration3_Loop [2020-11-29 18:47:40,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:47:40,619 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:47:40,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:40,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:40,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:40,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:40,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:40,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:40,751 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:47:40,751 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:47:40,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:47:40,755 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:40,759 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:47:40,760 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~__SELECTED_FEATURE_Keys~0=0} Honda state: {~__SELECTED_FEATURE_Keys~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:40,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:47:40,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:47:40,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:47:40,804 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_#t~nondet18=2, ULTIMATE.start_test_~tmp___7~0=2} Honda state: {ULTIMATE.start_test_#t~nondet18=2, ULTIMATE.start_test_~tmp___7~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:40,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:47:40,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:47:40,839 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:47:40,839 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~op1~0=-5} Honda state: {ULTIMATE.start_test_~op1~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:40,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:47:40,861 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:40,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:47:40,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:47:40,985 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:47:40,986 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:47:40,987 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:47:40,987 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:47:40,987 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:47:40,987 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:47:40,987 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:40,987 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:47:40,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:47:40,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec8_productSimulator.cil.c_Iteration3_Loop [2020-11-29 18:47:40,987 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:47:40,987 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:47:40,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:40,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:40,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:41,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:41,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:41,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:47:41,127 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:47:41,127 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:47:41,137 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 [2020-11-29 18:47:41,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:47:41,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:47:41,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:47:41,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:47:41,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:47:41,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:47:41,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:41,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:47:41,185 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 [2020-11-29 18:47:41,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:47:41,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:47:41,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:47:41,187 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:47:41,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:47:41,189 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:47:41,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:41,191 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:47:41,239 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 [2020-11-29 18:47:41,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:47:41,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:47:41,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:47:41,241 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:47:41,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:47:41,243 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:47:41,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:41,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:41,274 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 [2020-11-29 18:47:41,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:47:41,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:47:41,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:47:41,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:47:41,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:47:41,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:47:41,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:47:41,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:47:41,285 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:47:41,285 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_73018cd0-b7e2-416e-a987-52bcf5428e34/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:47:41,289 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:47:41,289 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:47:41,289 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:47:41,289 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 5 Supporting invariants [] [2020-11-29 18:47:41,311 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:47:41,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:41,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:47:41,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:41,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:47:41,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:41,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:41,556 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 [2020-11-29 18:47:41,556 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1039 states and 1892 transitions. cyclomatic complexity: 857 Second operand 3 states. [2020-11-29 18:47:41,643 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1039 states and 1892 transitions. cyclomatic complexity: 857. Second operand 3 states. Result 2228 states and 4083 transitions. Complement of second has 4 states. [2020-11-29 18:47:41,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:47:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:47:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 599 transitions. [2020-11-29 18:47:41,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 599 transitions. Stem has 36 letters. Loop has 9 letters. [2020-11-29 18:47:41,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:41,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 599 transitions. Stem has 45 letters. Loop has 9 letters. [2020-11-29 18:47:41,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:41,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 599 transitions. Stem has 36 letters. Loop has 18 letters. [2020-11-29 18:47:41,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:47:41,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2228 states and 4083 transitions. [2020-11-29 18:47:41,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:47:41,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2228 states to 0 states and 0 transitions. [2020-11-29 18:47:41,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:47:41,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:47:41,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:47:41,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:47:41,657 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:47:41,658 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:47:41,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:47:41,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:47:41,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:41,659 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-29 18:47:41,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:41,659 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 18:47:41,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:47:41,659 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 18:47:41,659 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:47:41,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:47:41,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:47:41,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:47:41,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:47:41,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:47:41,660 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:47:41,660 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:47:41,661 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:47:41,661 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:47:41,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:47:41,661 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:47:41,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:47:41,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:47:41 BoogieIcfgContainer [2020-11-29 18:47:41,667 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:47:41,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:47:41,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:47:41,668 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:47:41,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:27" (3/4) ... [2020-11-29 18:47:41,671 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:47:41,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:47:41,674 INFO L168 Benchmark]: Toolchain (without parser) took 80793.39 ms. Allocated memory was 88.1 MB in the beginning and 10.7 GB in the end (delta: 10.6 GB). Free memory was 53.7 MB in the beginning and 8.7 GB in the end (delta: -8.6 GB). Peak memory consumption was 2.0 GB. Max. memory is 16.1 GB. [2020-11-29 18:47:41,679 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory is still 46.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:41,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1105.40 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 53.6 MB in the beginning and 47.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:41,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 5571.57 ms. Allocated memory was 107.0 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 47.8 MB in the beginning and 2.2 GB in the end (delta: -2.2 GB). Peak memory consumption was 646.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:41,682 INFO L168 Benchmark]: Boogie Preprocessor took 4424.17 ms. Allocated memory was 2.6 GB in the beginning and 7.8 GB in the end (delta: 5.2 GB). Free memory was 2.2 GB in the beginning and 7.1 GB in the end (delta: -4.9 GB). Peak memory consumption was 397.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:41,686 INFO L168 Benchmark]: RCFGBuilder took 55841.55 ms. Allocated memory was 7.8 GB in the beginning and 10.5 GB in the end (delta: 2.7 GB). Free memory was 7.1 GB in the beginning and 9.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 986.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:41,686 INFO L168 Benchmark]: BuchiAutomizer took 13830.15 ms. Allocated memory was 10.5 GB in the beginning and 10.7 GB in the end (delta: 226.5 MB). Free memory was 9.1 GB in the beginning and 8.7 GB in the end (delta: 442.5 MB). Peak memory consumption was 667.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:41,687 INFO L168 Benchmark]: Witness Printer took 4.29 ms. Allocated memory is still 10.7 GB. Free memory is still 8.7 GB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:41,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory is still 46.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1105.40 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 53.6 MB in the beginning and 47.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 5571.57 ms. Allocated memory was 107.0 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 47.8 MB in the beginning and 2.2 GB in the end (delta: -2.2 GB). Peak memory consumption was 646.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 4424.17 ms. Allocated memory was 2.6 GB in the beginning and 7.8 GB in the end (delta: 5.2 GB). Free memory was 2.2 GB in the beginning and 7.1 GB in the end (delta: -4.9 GB). Peak memory consumption was 397.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 55841.55 ms. Allocated memory was 7.8 GB in the beginning and 10.5 GB in the end (delta: 2.7 GB). Free memory was 7.1 GB in the beginning and 9.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 986.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 13830.15 ms. Allocated memory was 10.5 GB in the beginning and 10.7 GB in the end (delta: 226.5 MB). Free memory was 9.1 GB in the beginning and 8.7 GB in the end (delta: 442.5 MB). Peak memory consumption was 667.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.29 ms. Allocated memory is still 10.7 GB. Free memory is still 8.7 GB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op1 + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * op2 + 1 and consists of 4 locations. One deterministic module has affine ranking function -2 * splverifierCounter + 5 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.7s. Büchi inclusion checks took 6.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1392 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 1.5s Buchi closure took 0.0s. Biggest automaton had 1039 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 114400 SDtfs, 113898 SDslu, 170830 SDs, 0 SdLazy, 37 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital30 mio100 ax100 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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...