./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/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 c2670ad5e4e15dbb59589cb0def5c088af54693e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:50:08,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:50:08,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:50:08,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:50:08,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:50:08,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:50:08,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:50:08,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:50:08,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:50:08,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:50:08,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:50:08,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:50:08,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:50:08,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:50:08,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:50:08,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:50:08,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:50:08,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:50:08,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:50:08,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:50:08,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:50:08,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:50:08,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:50:08,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:50:08,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:50:08,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:50:08,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:50:08,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:50:08,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:50:08,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:50:08,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:50:08,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:50:08,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:50:08,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:50:08,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:50:08,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:50:08,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:50:08,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:50:08,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:50:08,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:50:08,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:50:08,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:50:08,781 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:50:08,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:50:08,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:50:08,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:50:08,783 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:50:08,783 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:50:08,783 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:50:08,783 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:50:08,784 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:50:08,784 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:50:08,784 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:50:08,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:50:08,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:50:08,785 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:50:08,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:50:08,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:50:08,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:50:08,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:50:08,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:50:08,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:50:08,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:50:08,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:50:08,786 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:50:08,787 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:50:08,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:50:08,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:50:08,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:50:08,787 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:50:08,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:50:08,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:50:08,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:50:08,788 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:50:08,789 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:50:08,790 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_663d2d37-ac95-44f3-8fc1-00a637d9f861/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2670ad5e4e15dbb59589cb0def5c088af54693e [2020-12-01 15:50:09,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:50:09,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:50:09,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:50:09,057 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:50:09,058 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:50:09,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec7_product31.cil.c [2020-12-01 15:50:09,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/data/c021ccaf5/5a1dbb0aa2334489a66d94cd7f49ff5e/FLAGc12ac4b18 [2020-12-01 15:50:09,775 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:50:09,775 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/sv-benchmarks/c/product-lines/email_spec7_product31.cil.c [2020-12-01 15:50:09,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/data/c021ccaf5/5a1dbb0aa2334489a66d94cd7f49ff5e/FLAGc12ac4b18 [2020-12-01 15:50:09,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/data/c021ccaf5/5a1dbb0aa2334489a66d94cd7f49ff5e [2020-12-01 15:50:09,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:50:09,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:50:09,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:50:09,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:50:09,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:50:10,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:50:09" (1/1) ... [2020-12-01 15:50:10,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c043125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10, skipping insertion in model container [2020-12-01 15:50:10,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:50:09" (1/1) ... [2020-12-01 15:50:10,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:50:10,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:50:10,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:50:10,735 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:50:10,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:50:10,950 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:50:10,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10 WrapperNode [2020-12-01 15:50:10,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:50:10,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:50:10,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:50:10,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:50:10,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:50:11,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:50:11,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:50:11,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:50:11,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... [2020-12-01 15:50:11,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:50:11,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:50:11,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:50:11,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:50:11,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-12-01 15:50:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:50:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:50:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:50:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:50:13,920 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:50:13,920 INFO L298 CfgBuilder]: Removed 383 assume(true) statements. [2020-12-01 15:50:13,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:50:13 BoogieIcfgContainer [2020-12-01 15:50:13,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:50:13,924 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:50:13,925 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:50:13,928 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:50:13,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:50:13,929 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:50:09" (1/3) ... [2020-12-01 15:50:13,930 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f2f18c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:50:13, skipping insertion in model container [2020-12-01 15:50:13,931 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:50:13,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:50:10" (2/3) ... [2020-12-01 15:50:13,931 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f2f18c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:50:13, skipping insertion in model container [2020-12-01 15:50:13,931 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:50:13,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:50:13" (3/3) ... [2020-12-01 15:50:13,933 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec7_product31.cil.c [2020-12-01 15:50:13,977 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:50:13,978 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:50:13,978 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:50:13,978 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:50:13,978 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:50:13,978 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:50:13,979 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:50:13,979 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:50:14,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 563 states. [2020-12-01 15:50:14,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-12-01 15:50:14,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:50:14,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:50:14,074 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:50:14,077 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:50:14,077 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:50:14,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 563 states. [2020-12-01 15:50:14,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-12-01 15:50:14,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:50:14,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:50:14,115 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:50:14,115 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:50:14,122 INFO L794 eck$LassoCheckResult]: Stem: 399#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(44);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(44);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(9);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(9);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(11);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(19);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string25.base, #t~string25.offset, 1);call write~init~int(100, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(10, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string28.base, #t~string28.offset, 1);call write~init~int(100, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(10, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(10);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(16);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(20);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(30);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(9);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(21);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(30);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(9);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(21);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(30);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(25);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(30);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(9);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(25);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(10);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(12);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(10);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(18);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(16);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(21);call #t~string116.base, #t~string116.offset := #Ultimate.allocOnStack(13);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(16);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(25);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string126.base, #t~string126.offset, 1);call write~init~int(115, #t~string126.base, 1 + #t~string126.offset, 1);call write~init~int(10, #t~string126.base, 2 + #t~string126.offset, 1);call write~init~int(0, #t~string126.base, 3 + #t~string126.offset, 1);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 285#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 379#L1696true havoc valid_product_#res;havoc valid_product_~retValue_acc~26;havoc valid_product_~retValue_acc~26;valid_product_~retValue_acc~26 := 1;valid_product_#res := valid_product_~retValue_acc~26; 515#L1704true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 265#L222true assume 0 != main_~tmp~1;havoc setup_#t~nondet15, setup_#t~nondet17, setup_#t~nondet19, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;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; 473#L2759true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 166#L2765-2true 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; 188#L2324true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 450#L2330-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string14.base, #t~string14.offset;havoc setup_#t~nondet15;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;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; 480#L2759-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 147#L2765-5true 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; 190#L2324-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 453#L2330-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string16.base, #t~string16.offset;havoc setup_#t~nondet17;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;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; 462#L2759-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 160#L2765-8true 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; 194#L2324-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 436#L2330-8true setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19; 396#L209true havoc test_#t~nondet131, test_#t~nondet132, test_#t~nondet133, test_#t~nondet134, test_#t~nondet135, test_#t~nondet136, test_#t~nondet137, test_#t~nondet138, test_#t~nondet139, test_#t~nondet140, test_#t~nondet141, 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~23, test_~tmp___0~8, test_~tmp___1~4, test_~tmp___2~3, test_~tmp___3~1, test_~tmp___4~1, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~23;havoc test_~tmp___0~8;havoc test_~tmp___1~4;havoc test_~tmp___2~3;havoc test_~tmp___3~1;havoc test_~tmp___4~1;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 416#L2961-1true [2020-12-01 15:50:14,129 INFO L796 eck$LassoCheckResult]: Loop: 416#L2961-1true assume !false; 535#L2816true assume test_~splverifierCounter~0 < 4; 344#L2817true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 7#L2823true assume !(0 == test_~op1~0); 472#L2836true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet132;havoc test_#t~nondet132; 365#L2841true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 416#L2961-1true [2020-12-01 15:50:14,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:50:14,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-12-01 15:50:14,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:50:14,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123954060] [2020-12-01 15:50:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:50:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:50:14,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:50:14,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123954060] [2020-12-01 15:50:14,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:50:14,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:50:14,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658627733] [2020-12-01 15:50:14,624 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:50:14,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:50:14,628 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-12-01 15:50:14,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:50:14,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072986983] [2020-12-01 15:50:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:50:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:50:14,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:50:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:50:14,664 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:50:14,705 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:50:14,773 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:50:14,774 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:50:14,774 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:50:14,774 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:50:14,774 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:50:14,775 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:14,775 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:50:14,775 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:50:14,775 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec7_product31.cil.c_Iteration1_Loop [2020-12-01 15:50:14,775 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:50:14,776 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:50:14,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:14,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:14,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:14,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:14,922 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:50:14,922 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:50:14,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:50:14,946 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:50:15,003 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:50:15,003 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:15,031 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:50:15,051 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:50:15,051 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:50:15,051 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:50:15,051 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:50:15,051 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:50:15,051 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:15,052 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:50:15,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:50:15,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec7_product31.cil.c_Iteration1_Loop [2020-12-01 15:50:15,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:50:15,052 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:50:15,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:15,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:15,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:15,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:15,164 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:50:15,172 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/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) [2020-12-01 15:50:15,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:50:15,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:50:15,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:50:15,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:50:15,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:50:15,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:50:15,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:50:15,189 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 [2020-12-01 15:50:15,200 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:50:15,216 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:50:15,216 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_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:15,224 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:50:15,236 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:50:15,237 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:50:15,238 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2020-12-01 15:50:15,286 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:50:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:50:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:50:15,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:50:15,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:50:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:50:15,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:50:15,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:50:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:50:15,844 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 15:50:15,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 563 states. Second operand 4 states. [2020-12-01 15:50:16,129 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 563 states.. Second operand 4 states. Result 2480 states and 4254 transitions. Complement of second has 7 states. [2020-12-01 15:50:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:50:16,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:50:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2420 transitions. [2020-12-01 15:50:16,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2420 transitions. Stem has 18 letters. Loop has 6 letters. [2020-12-01 15:50:16,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:50:16,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2420 transitions. Stem has 24 letters. Loop has 6 letters. [2020-12-01 15:50:16,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:50:16,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2420 transitions. Stem has 18 letters. Loop has 12 letters. [2020-12-01 15:50:16,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:50:16,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2480 states and 4254 transitions. [2020-12-01 15:50:16,207 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 423 [2020-12-01 15:50:16,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2480 states to 879 states and 1596 transitions. [2020-12-01 15:50:16,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 454 [2020-12-01 15:50:16,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 455 [2020-12-01 15:50:16,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 879 states and 1596 transitions. [2020-12-01 15:50:16,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:50:16,235 INFO L692 BuchiCegarLoop]: Abstraction has 879 states and 1596 transitions. [2020-12-01 15:50:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states and 1596 transitions. [2020-12-01 15:50:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 456. [2020-12-01 15:50:16,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2020-12-01 15:50:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 825 transitions. [2020-12-01 15:50:16,322 INFO L715 BuchiCegarLoop]: Abstraction has 456 states and 825 transitions. [2020-12-01 15:50:16,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:50:16,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:50:16,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:50:16,329 INFO L87 Difference]: Start difference. First operand 456 states and 825 transitions. Second operand 3 states. [2020-12-01 15:50:16,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:50:16,400 INFO L93 Difference]: Finished difference Result 892 states and 1615 transitions. [2020-12-01 15:50:16,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:50:16,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 892 states and 1615 transitions. [2020-12-01 15:50:16,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 424 [2020-12-01 15:50:16,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 892 states to 892 states and 1615 transitions. [2020-12-01 15:50:16,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 466 [2020-12-01 15:50:16,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 466 [2020-12-01 15:50:16,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 892 states and 1615 transitions. [2020-12-01 15:50:16,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:50:16,433 INFO L692 BuchiCegarLoop]: Abstraction has 892 states and 1615 transitions. [2020-12-01 15:50:16,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states and 1615 transitions. [2020-12-01 15:50:16,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 455. [2020-12-01 15:50:16,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-12-01 15:50:16,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 821 transitions. [2020-12-01 15:50:16,454 INFO L715 BuchiCegarLoop]: Abstraction has 455 states and 821 transitions. [2020-12-01 15:50:16,454 INFO L595 BuchiCegarLoop]: Abstraction has 455 states and 821 transitions. [2020-12-01 15:50:16,454 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:50:16,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 455 states and 821 transitions. [2020-12-01 15:50:16,458 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-12-01 15:50:16,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:50:16,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:50:16,461 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:50:16,462 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:50:16,462 INFO L794 eck$LassoCheckResult]: Stem: 4801#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(44);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(44);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(9);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(9);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(11);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(19);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string25.base, #t~string25.offset, 1);call write~init~int(100, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(10, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string28.base, #t~string28.offset, 1);call write~init~int(100, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(10, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(10);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(16);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(20);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(30);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(9);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(21);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(30);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(9);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(21);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(30);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(25);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(30);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(9);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(25);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(10);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(12);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(10);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(18);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(16);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(21);call #t~string116.base, #t~string116.offset := #Ultimate.allocOnStack(13);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(16);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(25);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string126.base, #t~string126.offset, 1);call write~init~int(115, #t~string126.base, 1 + #t~string126.offset, 1);call write~init~int(10, #t~string126.base, 2 + #t~string126.offset, 1);call write~init~int(0, #t~string126.base, 3 + #t~string126.offset, 1);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 4508#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 4509#L1696 havoc valid_product_#res;havoc valid_product_~retValue_acc~26;havoc valid_product_~retValue_acc~26;valid_product_~retValue_acc~26 := 1;valid_product_#res := valid_product_~retValue_acc~26; 4766#L1704 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 4936#L222 assume 0 != main_~tmp~1;havoc setup_#t~nondet15, setup_#t~nondet17, setup_#t~nondet19, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;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; 4907#L2759 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4708#L2765-2 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; 4901#L2324 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4687#L2330-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string14.base, #t~string14.offset;havoc setup_#t~nondet15;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;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; 4900#L2759-2 assume !(1 == setClientId_~handle); 4633#L2762-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 4634#L2765-5 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; 4886#L2324-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4715#L2330-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string16.base, #t~string16.offset;havoc setup_#t~nondet17;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;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; 4902#L2759-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4643#L2765-8 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; 4897#L2324-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4615#L2330-8 setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19; 4795#L209 havoc test_#t~nondet131, test_#t~nondet132, test_#t~nondet133, test_#t~nondet134, test_#t~nondet135, test_#t~nondet136, test_#t~nondet137, test_#t~nondet138, test_#t~nondet139, test_#t~nondet140, test_#t~nondet141, 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~23, test_~tmp___0~8, test_~tmp___1~4, test_~tmp___2~3, test_~tmp___3~1, test_~tmp___4~1, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~23;havoc test_~tmp___0~8;havoc test_~tmp___1~4;havoc test_~tmp___2~3;havoc test_~tmp___3~1;havoc test_~tmp___4~1;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 4796#L2961-1 assume !false; 4824#L2816 [2020-12-01 15:50:16,463 INFO L796 eck$LassoCheckResult]: Loop: 4824#L2816 assume test_~splverifierCounter~0 < 4; 4701#L2817 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 4534#L2823 assume !(0 == test_~op1~0); 4536#L2836 assume !(0 == test_~op2~0); 4744#L2847 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet133;havoc test_#t~nondet133; 4748#L2852 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; 4749#L2324-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4649#L2330-11 test_~op3~0 := 1; 4499#L2961-1 assume !false; 4824#L2816 [2020-12-01 15:50:16,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:50:16,463 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-12-01 15:50:16,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:50:16,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277886831] [2020-12-01 15:50:16,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:50:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:50:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:50:16,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277886831] [2020-12-01 15:50:16,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:50:16,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:50:16,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069823178] [2020-12-01 15:50:16,659 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:50:16,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:50:16,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-12-01 15:50:16,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:50:16,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878908865] [2020-12-01 15:50:16,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:50:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:50:16,681 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:50:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:50:16,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:50:16,695 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:50:16,773 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:50:16,773 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:50:16,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:50:16,774 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:50:16,774 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:50:16,774 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:16,774 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:50:16,774 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:50:16,774 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec7_product31.cil.c_Iteration2_Loop [2020-12-01 15:50:16,774 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:50:16,775 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:50:16,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:16,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:16,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:16,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:16,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:16,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:16,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:16,969 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:50:16,969 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:50:16,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:50:16,976 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_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:50:17,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:50:17,037 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:17,097 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:50:17,104 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:50:17,104 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:50:17,104 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:50:17,104 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:50:17,104 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:50:17,104 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:17,104 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:50:17,104 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:50:17,104 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec7_product31.cil.c_Iteration2_Loop [2020-12-01 15:50:17,104 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:50:17,104 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:50:17,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:17,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:17,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:17,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:17,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:17,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:17,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:50:17,339 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:50:17,340 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_663d2d37-ac95-44f3-8fc1-00a637d9f861/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) [2020-12-01 15:50:17,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:50:17,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:50:17,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:50:17,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:50:17,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:50:17,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:50:17,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:50:17,354 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 [2020-12-01 15:50:17,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:50:17,375 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:50:17,375 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_663d2d37-ac95-44f3-8fc1-00a637d9f861/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:50:17,397 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:50:17,397 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:50:17,397 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:50:17,397 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:50:17,430 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:50:17,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:50:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:50:17,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:50:17,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:50:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:50:17,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:50:17,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:50:17,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:50:17,782 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-12-01 15:50:17,782 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 455 states and 821 transitions. cyclomatic complexity: 368 Second operand 4 states. [2020-12-01 15:50:17,826 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 455 states and 821 transitions. cyclomatic complexity: 368. Second operand 4 states. Result 883 states and 1601 transitions. Complement of second has 6 states. [2020-12-01 15:50:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:50:17,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:50:17,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2020-12-01 15:50:17,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 20 letters. Loop has 9 letters. [2020-12-01 15:50:17,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:50:17,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 29 letters. Loop has 9 letters. [2020-12-01 15:50:17,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:50:17,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 20 letters. Loop has 18 letters. [2020-12-01 15:50:17,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:50:17,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 883 states and 1601 transitions. [2020-12-01 15:50:17,843 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:50:17,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 883 states to 0 states and 0 transitions. [2020-12-01 15:50:17,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:50:17,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:50:17,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:50:17,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:50:17,844 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:50:17,844 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:50:17,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:50:17,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:50:17,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:50:17,846 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-12-01 15:50:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:50:17,846 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-12-01 15:50:17,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:50:17,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-12-01 15:50:17,846 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:50:17,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:50:17,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:50:17,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:50:17,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:50:17,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:50:17,847 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:50:17,847 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:50:17,847 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:50:17,848 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:50:17,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:50:17,848 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:50:17,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:50:17,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:50:17 BoogieIcfgContainer [2020-12-01 15:50:17,854 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:50:17,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:50:17,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:50:17,855 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:50:17,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:50:13" (3/4) ... [2020-12-01 15:50:17,860 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:50:17,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:50:17,863 INFO L168 Benchmark]: Toolchain (without parser) took 7872.35 ms. Allocated memory was 83.9 MB in the beginning and 199.2 MB in the end (delta: 115.3 MB). Free memory was 50.5 MB in the beginning and 78.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 87.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:50:17,864 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 83.9 MB. Free memory was 43.3 MB in the beginning and 43.2 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:50:17,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 958.62 ms. Allocated memory was 83.9 MB in the beginning and 115.3 MB in the end (delta: 31.5 MB). Free memory was 50.2 MB in the beginning and 46.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:50:17,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 211.02 ms. Allocated memory is still 115.3 MB. Free memory was 46.4 MB in the beginning and 83.4 MB in the end (delta: -37.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:50:17,868 INFO L168 Benchmark]: Boogie Preprocessor took 157.61 ms. Allocated memory is still 115.3 MB. Free memory was 83.4 MB in the beginning and 76.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:50:17,874 INFO L168 Benchmark]: RCFGBuilder took 2598.21 ms. Allocated memory was 115.3 MB in the beginning and 163.6 MB in the end (delta: 48.2 MB). Free memory was 76.3 MB in the beginning and 77.4 MB in the end (delta: -1.0 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:50:17,875 INFO L168 Benchmark]: BuchiAutomizer took 3929.67 ms. Allocated memory was 163.6 MB in the beginning and 199.2 MB in the end (delta: 35.7 MB). Free memory was 77.4 MB in the beginning and 78.2 MB in the end (delta: -798.6 kB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:50:17,875 INFO L168 Benchmark]: Witness Printer took 5.92 ms. Allocated memory is still 199.2 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:50:17,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 83.9 MB. Free memory was 43.3 MB in the beginning and 43.2 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 958.62 ms. Allocated memory was 83.9 MB in the beginning and 115.3 MB in the end (delta: 31.5 MB). Free memory was 50.2 MB in the beginning and 46.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 211.02 ms. Allocated memory is still 115.3 MB. Free memory was 46.4 MB in the beginning and 83.4 MB in the end (delta: -37.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 157.61 ms. Allocated memory is still 115.3 MB. Free memory was 83.4 MB in the beginning and 76.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2598.21 ms. Allocated memory was 115.3 MB in the beginning and 163.6 MB in the end (delta: 48.2 MB). Free memory was 76.3 MB in the beginning and 77.4 MB in the end (delta: -1.0 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3929.67 ms. Allocated memory was 163.6 MB in the beginning and 199.2 MB in the end (delta: 35.7 MB). Free memory was 77.4 MB in the beginning and 78.2 MB in the end (delta: -798.6 kB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.92 ms. Allocated memory is still 199.2 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * 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 3.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 860 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 455 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3139 SDtfs, 2720 SDslu, 3911 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: 63ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...