./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product21.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_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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 099018358f4824a495dae6a9a0310ca35efa52dc ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:32:58,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:32:58,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:32:58,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:32:58,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:32:58,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:32:58,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:32:58,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:32:58,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:32:58,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:32:58,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:32:58,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:32:58,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:32:58,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:32:58,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:32:58,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:32:58,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:32:58,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:32:58,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:32:58,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:32:58,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:32:58,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:32:58,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:32:58,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:32:58,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:32:58,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:32:58,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:32:58,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:32:58,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:32:58,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:32:58,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:32:58,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:32:58,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:32:58,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:32:58,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:32:58,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:32:58,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:32:58,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:32:58,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:32:58,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:32:58,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:32:58,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:32:59,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:32:59,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:32:59,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:32:59,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:32:59,051 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:32:59,052 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:32:59,052 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:32:59,052 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:32:59,053 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:32:59,053 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:32:59,054 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:32:59,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:32:59,055 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:32:59,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:32:59,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:32:59,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:32:59,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:32:59,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:32:59,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:32:59,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:32:59,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:32:59,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:32:59,058 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:32:59,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:32:59,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:32:59,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:32:59,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:32:59,060 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:32:59,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:32:59,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:32:59,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:32:59,063 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:32:59,064 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:32:59,065 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_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 099018358f4824a495dae6a9a0310ca35efa52dc [2020-11-30 01:32:59,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:32:59,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:32:59,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:32:59,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:32:59,435 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:32:59,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec6_product21.cil.c [2020-11-30 01:32:59,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/data/2827110d2/1b2fda2927354d07b443147a3731964c/FLAGa8a4c45b0 [2020-11-30 01:33:00,394 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:33:00,395 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/sv-benchmarks/c/product-lines/email_spec6_product21.cil.c [2020-11-30 01:33:00,429 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/data/2827110d2/1b2fda2927354d07b443147a3731964c/FLAGa8a4c45b0 [2020-11-30 01:33:00,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/data/2827110d2/1b2fda2927354d07b443147a3731964c [2020-11-30 01:33:00,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:33:00,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:33:00,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:33:00,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:33:00,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:33:00,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:33:00" (1/1) ... [2020-11-30 01:33:00,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fd20c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:00, skipping insertion in model container [2020-11-30 01:33:00,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:33:00" (1/1) ... [2020-11-30 01:33:00,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:33:00,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:33:01,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:33:01,488 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:33:01,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:33:01,752 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:33:01,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01 WrapperNode [2020-11-30 01:33:01,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:33:01,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:33:01,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:33:01,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:33:01,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:01,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:01,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:33:01,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:33:01,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:33:01,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:33:01,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:01,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:02,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:02,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:02,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:02,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:02,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... [2020-11-30 01:33:02,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:33:02,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:33:02,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:33:02,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:33:02,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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 [2020-11-30 01:33:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-11-30 01:33:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:33:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:33:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:33:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:33:06,577 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:33:06,577 INFO L298 CfgBuilder]: Removed 685 assume(true) statements. [2020-11-30 01:33:06,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:33:06 BoogieIcfgContainer [2020-11-30 01:33:06,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:33:06,586 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:33:06,587 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:33:06,590 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:33:06,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:33:06,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:33:00" (1/3) ... [2020-11-30 01:33:06,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fdef1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:33:06, skipping insertion in model container [2020-11-30 01:33:06,594 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:33:06,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:01" (2/3) ... [2020-11-30 01:33:06,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fdef1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:33:06, skipping insertion in model container [2020-11-30 01:33:06,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:33:06,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:33:06" (3/3) ... [2020-11-30 01:33:06,597 INFO L373 chiAutomizerObserver]: Analyzing ICFG email_spec6_product21.cil.c [2020-11-30 01:33:06,668 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:33:06,668 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:33:06,668 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:33:06,668 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:33:06,668 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:33:06,669 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:33:06,669 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:33:06,669 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:33:06,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1004 states. [2020-11-30 01:33:06,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2020-11-30 01:33:06,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:33:06,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:33:06,830 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:33:06,830 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:33:06,830 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:33:06,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1004 states. [2020-11-30 01:33:06,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2020-11-30 01:33:06,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:33:06,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:33:06,856 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:33:06,856 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:33:06,863 INFO L794 eck$LassoCheckResult]: Stem: 395#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(19);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(16);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(19);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(10);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(12);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(10);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(18);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(16);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(10);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(34);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(16);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(20);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(44);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(44);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(11);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(19);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string100.base, #t~string100.offset, 1);call write~init~int(100, #t~string100.base, 1 + #t~string100.offset, 1);call write~init~int(10, #t~string100.base, 2 + #t~string100.offset, 1);call write~init~int(0, #t~string100.base, 3 + #t~string100.offset, 1);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string103.base, #t~string103.offset, 1);call write~init~int(100, #t~string103.base, 1 + #t~string103.offset, 1);call write~init~int(10, #t~string103.base, 2 + #t~string103.offset, 1);call write~init~int(0, #t~string103.base, 3 + #t~string103.offset, 1);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(30);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(9);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(21);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(30);call #t~string132.base, #t~string132.offset := #Ultimate.allocOnStack(9);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(21);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(30);call #t~string138.base, #t~string138.offset := #Ultimate.allocOnStack(9);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(25);call #t~string140.base, #t~string140.offset := #Ultimate.allocOnStack(30);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(9);call #t~string142.base, #t~string142.offset := #Ultimate.allocOnStack(25);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~sent_encrypted~0 := -1;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__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;~head~0.base, ~head~0.offset := 0, 0; 279#L-1true havoc main_#res;havoc main_#t~ret95, main_~retValue_acc~29, main_~tmp~16;havoc main_~retValue_acc~29;havoc main_~tmp~16; 183#L1652true havoc valid_product_#res;havoc valid_product_~retValue_acc~28;havoc valid_product_~retValue_acc~28;valid_product_~retValue_acc~28 := 1;valid_product_#res := valid_product_~retValue_acc~28; 986#L1660true main_#t~ret95 := valid_product_#res;main_~tmp~16 := main_#t~ret95;havoc main_#t~ret95; 772#L2035true assume 0 != main_~tmp~16;havoc setup_#t~nondet90, setup_#t~nondet92, setup_#t~nondet94, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset, setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.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_tmp3~1.base, setup_~__cil_tmp3~1.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 237#L1610true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 975#L1616-2true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 1001#L1175true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 678#L1181-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string89.base, #t~string89.offset;havoc setup_#t~nondet90;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 226#L1610-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 980#L1616-5true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 1002#L1175-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 648#L1181-5true setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string91.base, #t~string91.offset;havoc setup_#t~nondet92;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 230#L1610-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 815#L1616-8true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 993#L1175-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 656#L1181-8true setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string93.base, #t~string93.offset;havoc setup_#t~nondet94; 420#L2022true havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, 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~14, test_~tmp___0~6, test_~tmp___1~4, test_~tmp___2~3, 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~14;havoc test_~tmp___0~6;havoc test_~tmp___1~4;havoc test_~tmp___2~3;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; 706#L1863-1true [2020-11-30 01:33:06,864 INFO L796 eck$LassoCheckResult]: Loop: 706#L1863-1true assume !false; 466#L1715true assume test_~splverifierCounter~0 < 4; 301#L1716true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 13#L1722true assume !(0 == test_~op1~0); 432#L1735true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet72;havoc test_#t~nondet72; 369#L1740true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 706#L1863-1true [2020-11-30 01:33:06,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:06,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-11-30 01:33:06,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:06,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985685489] [2020-11-30 01:33:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:33:07,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985685489] [2020-11-30 01:33:07,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:33:07,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:33:07,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161579923] [2020-11-30 01:33:07,308 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 01:33:07,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:07,310 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-11-30 01:33:07,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:07,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741302697] [2020-11-30 01:33:07,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:07,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:07,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:07,363 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:33:07,476 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:33:07,477 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:33:07,477 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:33:07,477 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:33:07,478 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 01:33:07,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:33:07,478 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:33:07,478 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:33:07,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec6_product21.cil.c_Iteration1_Loop [2020-11-30 01:33:07,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:33:07,479 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:33:07,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:07,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:07,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:07,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:07,701 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:33:07,702 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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 [2020-11-30 01:33:07,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:33:07,722 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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 [2020-11-30 01:33:07,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 01:33:07,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:33:07,778 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 01:33:07,808 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:33:07,809 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:33:07,809 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:33:07,809 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:33:07,809 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:33:07,809 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:33:07,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:33:07,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:33:07,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec6_product21.cil.c_Iteration1_Loop [2020-11-30 01:33:07,809 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:33:07,810 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:33:07,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:07,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:07,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:07,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:07,920 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:33:07,924 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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) [2020-11-30 01:33:07,937 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 [2020-11-30 01:33:07,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:33:07,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:33:07,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:33:07,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:33:07,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:33:07,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:33:07,946 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 [2020-11-30 01:33:07,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:33:08,051 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 01:33:08,052 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_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:33:08,136 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:33:08,137 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 01:33:08,137 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:33:08,138 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2020-11-30 01:33:08,216 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 01:33:08,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:08,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:33:08,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:33:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:08,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:33:08,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:33:08,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:33:08,635 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 [2020-11-30 01:33:08,636 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1004 states. Second operand 4 states. [2020-11-30 01:33:09,167 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1004 states.. Second operand 4 states. Result 4626 states and 7938 transitions. Complement of second has 7 states. [2020-11-30 01:33:09,168 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 [2020-11-30 01:33:09,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:33:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4604 transitions. [2020-11-30 01:33:09,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4604 transitions. Stem has 18 letters. Loop has 6 letters. [2020-11-30 01:33:09,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:33:09,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4604 transitions. Stem has 24 letters. Loop has 6 letters. [2020-11-30 01:33:09,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:33:09,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4604 transitions. Stem has 18 letters. Loop has 12 letters. [2020-11-30 01:33:09,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:33:09,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4626 states and 7938 transitions. [2020-11-30 01:33:09,260 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 509 [2020-11-30 01:33:09,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4626 states to 1051 states and 1924 transitions. [2020-11-30 01:33:09,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 540 [2020-11-30 01:33:09,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 541 [2020-11-30 01:33:09,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1051 states and 1924 transitions. [2020-11-30 01:33:09,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:33:09,299 INFO L691 BuchiCegarLoop]: Abstraction has 1051 states and 1924 transitions. [2020-11-30 01:33:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states and 1924 transitions. [2020-11-30 01:33:09,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 542. [2020-11-30 01:33:09,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-11-30 01:33:09,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 989 transitions. [2020-11-30 01:33:09,404 INFO L714 BuchiCegarLoop]: Abstraction has 542 states and 989 transitions. [2020-11-30 01:33:09,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:33:09,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:33:09,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:33:09,412 INFO L87 Difference]: Start difference. First operand 542 states and 989 transitions. Second operand 3 states. [2020-11-30 01:33:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:33:09,493 INFO L93 Difference]: Finished difference Result 1064 states and 1943 transitions. [2020-11-30 01:33:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:33:09,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1064 states and 1943 transitions. [2020-11-30 01:33:09,506 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 510 [2020-11-30 01:33:09,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1064 states to 1064 states and 1943 transitions. [2020-11-30 01:33:09,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 552 [2020-11-30 01:33:09,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 552 [2020-11-30 01:33:09,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1064 states and 1943 transitions. [2020-11-30 01:33:09,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:33:09,522 INFO L691 BuchiCegarLoop]: Abstraction has 1064 states and 1943 transitions. [2020-11-30 01:33:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states and 1943 transitions. [2020-11-30 01:33:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 541. [2020-11-30 01:33:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-11-30 01:33:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 985 transitions. [2020-11-30 01:33:09,540 INFO L714 BuchiCegarLoop]: Abstraction has 541 states and 985 transitions. [2020-11-30 01:33:09,540 INFO L594 BuchiCegarLoop]: Abstraction has 541 states and 985 transitions. [2020-11-30 01:33:09,540 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:33:09,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 541 states and 985 transitions. [2020-11-30 01:33:09,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2020-11-30 01:33:09,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:33:09,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:33:09,547 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] [2020-11-30 01:33:09,547 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:33:09,548 INFO L794 eck$LassoCheckResult]: Stem: 7753#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(19);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(16);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(19);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(10);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(12);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(10);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(18);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(16);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(10);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(34);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(16);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(20);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(44);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(44);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(11);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(19);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string100.base, #t~string100.offset, 1);call write~init~int(100, #t~string100.base, 1 + #t~string100.offset, 1);call write~init~int(10, #t~string100.base, 2 + #t~string100.offset, 1);call write~init~int(0, #t~string100.base, 3 + #t~string100.offset, 1);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string103.base, #t~string103.offset, 1);call write~init~int(100, #t~string103.base, 1 + #t~string103.offset, 1);call write~init~int(10, #t~string103.base, 2 + #t~string103.offset, 1);call write~init~int(0, #t~string103.base, 3 + #t~string103.offset, 1);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(30);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(9);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(21);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(30);call #t~string132.base, #t~string132.offset := #Ultimate.allocOnStack(9);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(21);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(30);call #t~string138.base, #t~string138.offset := #Ultimate.allocOnStack(9);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(25);call #t~string140.base, #t~string140.offset := #Ultimate.allocOnStack(30);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(9);call #t~string142.base, #t~string142.offset := #Ultimate.allocOnStack(25);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~sent_encrypted~0 := -1;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__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;~head~0.base, ~head~0.offset := 0, 0; 7373#L-1 havoc main_#res;havoc main_#t~ret95, main_~retValue_acc~29, main_~tmp~16;havoc main_~retValue_acc~29;havoc main_~tmp~16; 7374#L1652 havoc valid_product_#res;havoc valid_product_~retValue_acc~28;havoc valid_product_~retValue_acc~28;valid_product_~retValue_acc~28 := 1;valid_product_#res := valid_product_~retValue_acc~28; 7857#L1660 main_#t~ret95 := valid_product_#res;main_~tmp~16 := main_#t~ret95;havoc main_#t~ret95; 7483#L2035 assume 0 != main_~tmp~16;havoc setup_#t~nondet90, setup_#t~nondet92, setup_#t~nondet94, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset, setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.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_tmp3~1.base, setup_~__cil_tmp3~1.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 7484#L1610 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 7699#L1616-2 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 7868#L1175 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7761#L1181-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string89.base, #t~string89.offset;havoc setup_#t~nondet90;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 7873#L1610-2 assume !(1 == setClientId_~handle); 7722#L1613-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 7723#L1616-5 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 7870#L1175-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7702#L1181-5 setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string91.base, #t~string91.offset;havoc setup_#t~nondet92;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 7869#L1610-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 7577#L1616-8 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 7578#L1175-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7725#L1181-8 setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string93.base, #t~string93.offset;havoc setup_#t~nondet94; 7827#L2022 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, 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~14, test_~tmp___0~6, test_~tmp___1~4, test_~tmp___2~3, 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~14;havoc test_~tmp___0~6;havoc test_~tmp___1~4;havoc test_~tmp___2~3;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; 7828#L1863-1 assume !false; 7871#L1715 [2020-11-30 01:33:09,548 INFO L796 eck$LassoCheckResult]: Loop: 7871#L1715 assume test_~splverifierCounter~0 < 4; 7461#L1716 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 7425#L1722 assume !(0 == test_~op1~0); 7427#L1735 assume !(0 == test_~op2~0); 7638#L1746 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet73;havoc test_#t~nondet73; 7623#L1751 assume 0 != test_~tmp___7~0;setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := ~rjh~0, 0;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 7624#L1175-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7566#L1181-11 test_~op3~0 := 1; 7545#L1863-1 assume !false; 7871#L1715 [2020-11-30 01:33:09,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:09,549 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-11-30 01:33:09,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:09,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609271422] [2020-11-30 01:33:09,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:33:09,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609271422] [2020-11-30 01:33:09,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:33:09,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:33:09,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887433215] [2020-11-30 01:33:09,665 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 01:33:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:09,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-11-30 01:33:09,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:09,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959127811] [2020-11-30 01:33:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:09,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:09,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:09,711 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:33:09,829 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:33:09,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:33:09,829 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:33:09,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:33:09,829 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 01:33:09,829 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:33:09,829 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:33:09,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:33:09,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec6_product21.cil.c_Iteration2_Loop [2020-11-30 01:33:09,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:33:09,830 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:33:09,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:09,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:09,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:09,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:09,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:09,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:09,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:10,045 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:33:10,045 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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) [2020-11-30 01:33:10,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:33:10,057 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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 [2020-11-30 01:33:10,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 01:33:10,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:33:10,148 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 01:33:10,154 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:33:10,155 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:33:10,155 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:33:10,155 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:33:10,155 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:33:10,155 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:33:10,156 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:33:10,156 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:33:10,156 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec6_product21.cil.c_Iteration2_Loop [2020-11-30 01:33:10,156 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:33:10,156 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:33:10,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:10,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:10,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:10,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:10,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:10,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:10,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:33:10,438 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:33:10,438 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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) [2020-11-30 01:33:10,450 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 [2020-11-30 01:33:10,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:33:10,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:33:10,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:33:10,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:33:10,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:33:10,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:33:10,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:33:10,458 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:33:10,466 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 01:33:10,466 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_005ea45e-8e5b-4ce1-8da4-96a0debc5cef/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) [2020-11-30 01:33:10,477 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:33:10,477 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 01:33:10,477 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:33:10,477 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:33:10,518 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 01:33:10,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:10,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:33:10,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:33:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:10,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:33:10,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:33:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:33:10,835 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 [2020-11-30 01:33:10,836 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 541 states and 985 transitions. cyclomatic complexity: 446 Second operand 4 states. [2020-11-30 01:33:10,929 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 541 states and 985 transitions. cyclomatic complexity: 446. Second operand 4 states. Result 1055 states and 1929 transitions. Complement of second has 6 states. [2020-11-30 01:33:10,930 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 [2020-11-30 01:33:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:33:10,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 515 transitions. [2020-11-30 01:33:10,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 20 letters. Loop has 9 letters. [2020-11-30 01:33:10,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:33:10,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 29 letters. Loop has 9 letters. [2020-11-30 01:33:10,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:33:10,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 20 letters. Loop has 18 letters. [2020-11-30 01:33:10,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:33:10,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1055 states and 1929 transitions. [2020-11-30 01:33:10,951 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:33:10,951 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1055 states to 0 states and 0 transitions. [2020-11-30 01:33:10,951 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 01:33:10,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 01:33:10,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 01:33:10,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:33:10,952 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:33:10,952 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:33:10,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:33:10,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:33:10,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:33:10,953 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-11-30 01:33:10,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:33:10,953 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-30 01:33:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:33:10,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-30 01:33:10,954 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:33:10,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:33:10,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 01:33:10,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 01:33:10,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 01:33:10,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:33:10,955 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:33:10,955 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:33:10,955 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:33:10,955 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:33:10,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:33:10,956 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:33:10,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 01:33:10,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:33:10 BoogieIcfgContainer [2020-11-30 01:33:10,964 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:33:10,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:33:10,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:33:10,965 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:33:10,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:33:06" (3/4) ... [2020-11-30 01:33:10,969 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:33:10,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:33:10,973 INFO L168 Benchmark]: Toolchain (without parser) took 10386.60 ms. Allocated memory was 92.3 MB in the beginning and 230.7 MB in the end (delta: 138.4 MB). Free memory was 62.0 MB in the beginning and 167.7 MB in the end (delta: -105.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:10,973 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 92.3 MB. Free memory was 51.0 MB in the beginning and 50.9 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:33:10,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1164.02 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.6 MB in the beginning and 76.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:10,976 INFO L168 Benchmark]: Boogie Procedure Inliner took 208.83 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 59.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:10,978 INFO L168 Benchmark]: Boogie Preprocessor took 233.17 ms. Allocated memory is still 111.1 MB. Free memory was 59.2 MB in the beginning and 76.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:10,984 INFO L168 Benchmark]: RCFGBuilder took 4387.68 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 76.4 MB in the beginning and 88.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 94.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:10,985 INFO L168 Benchmark]: BuchiAutomizer took 4377.74 ms. Allocated memory was 176.2 MB in the beginning and 230.7 MB in the end (delta: 54.5 MB). Free memory was 88.4 MB in the beginning and 167.7 MB in the end (delta: -79.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:33:10,986 INFO L168 Benchmark]: Witness Printer took 5.01 ms. Allocated memory is still 230.7 MB. Free memory is still 167.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:33:11,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 92.3 MB. Free memory was 51.0 MB in the beginning and 50.9 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1164.02 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.6 MB in the beginning and 76.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 208.83 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 59.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 233.17 ms. Allocated memory is still 111.1 MB. Free memory was 59.2 MB in the beginning and 76.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4387.68 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 76.4 MB in the beginning and 88.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 94.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4377.74 ms. Allocated memory was 176.2 MB in the beginning and 230.7 MB in the end (delta: 54.5 MB). Free memory was 88.4 MB in the beginning and 167.7 MB in the end (delta: -79.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.01 ms. Allocated memory is still 230.7 MB. Free memory is still 167.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * splverifierCounter + 7 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1032 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 541 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4885 SDtfs, 4383 SDslu, 6407 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf90 smp100 dnf134 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 211ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...