./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/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 0ff483d0a2c5b1c92aa5ab183e826ba06df1aed1 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:20:00,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:20:00,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:20:00,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:20:00,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:20:00,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:20:00,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:20:00,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:20:00,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:20:00,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:20:00,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:20:00,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:20:00,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:20:00,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:20:00,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:20:00,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:20:00,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:20:00,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:20:00,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:20:00,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:20:00,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:20:00,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:20:00,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:20:00,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:20:00,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:20:00,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:20:00,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:20:00,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:20:00,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:20:00,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:20:00,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:20:00,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:20:00,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:20:00,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:20:00,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:20:00,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:20:00,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:20:00,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:20:00,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:20:00,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:20:00,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:20:00,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:20:00,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:20:00,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:20:00,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:20:00,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:20:00,557 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:20:00,558 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:20:00,558 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:20:00,558 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:20:00,558 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:20:00,559 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:20:00,560 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:20:00,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:20:00,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:20:00,560 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:20:00,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:20:00,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:20:00,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:20:00,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:20:00,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:20:00,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:20:00,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:20:00,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:20:00,562 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:20:00,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:20:00,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:20:00,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:20:00,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:20:00,564 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:20:00,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:20:00,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:20:00,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:20:00,566 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:20:00,568 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:20:00,568 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_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ff483d0a2c5b1c92aa5ab183e826ba06df1aed1 [2020-11-29 19:20:00,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:20:00,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:20:00,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:20:00,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:20:00,938 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:20:00,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c [2020-11-29 19:20:01,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/data/756ed90b1/b3062fd7222e4f1fab0a6e296491c6bf/FLAG782438517 [2020-11-29 19:20:01,746 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:20:01,747 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/sv-benchmarks/c/product-lines/email_spec7_product17.cil.c [2020-11-29 19:20:01,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/data/756ed90b1/b3062fd7222e4f1fab0a6e296491c6bf/FLAG782438517 [2020-11-29 19:20:01,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/data/756ed90b1/b3062fd7222e4f1fab0a6e296491c6bf [2020-11-29 19:20:01,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:20:01,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:20:01,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:20:01,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:20:01,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:20:01,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:20:01" (1/1) ... [2020-11-29 19:20:01,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c5a49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:01, skipping insertion in model container [2020-11-29 19:20:01,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:20:01" (1/1) ... [2020-11-29 19:20:01,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:20:02,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:20:02,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:20:02,733 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:20:02,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:20:02,950 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:20:02,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02 WrapperNode [2020-11-29 19:20:02,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:20:02,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:20:02,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:20:02,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:20:02,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:20:03,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:20:03,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:20:03,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:20:03,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... [2020-11-29 19:20:03,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:20:03,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:20:03,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:20:03,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:20:03,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-11-29 19:20:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:20:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:20:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:20:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:20:07,052 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:20:07,053 INFO L298 CfgBuilder]: Removed 437 assume(true) statements. [2020-11-29 19:20:07,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:20:07 BoogieIcfgContainer [2020-11-29 19:20:07,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:20:07,058 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:20:07,058 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:20:07,067 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:20:07,068 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:20:07,069 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:20:01" (1/3) ... [2020-11-29 19:20:07,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27c0be2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:20:07, skipping insertion in model container [2020-11-29 19:20:07,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:20:07,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:20:02" (2/3) ... [2020-11-29 19:20:07,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27c0be2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:20:07, skipping insertion in model container [2020-11-29 19:20:07,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:20:07,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:20:07" (3/3) ... [2020-11-29 19:20:07,073 INFO L373 chiAutomizerObserver]: Analyzing ICFG email_spec7_product17.cil.c [2020-11-29 19:20:07,146 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:20:07,147 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:20:07,147 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:20:07,147 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:20:07,147 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:20:07,148 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:20:07,148 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:20:07,148 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:20:07,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 680 states. [2020-11-29 19:20:07,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-11-29 19:20:07,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:20:07,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:20:07,329 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:20:07,329 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:20:07,330 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:20:07,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 680 states. [2020-11-29 19:20:07,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-11-29 19:20:07,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:20:07,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:20:07,356 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:20:07,356 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:20:07,373 INFO L794 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string43.base, #t~string43.offset, 1);call write~init~int(115, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(10, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 3 + #t~string43.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(10);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(12);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(10);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(18);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(16);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(44);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(44);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(9);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(11);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(19);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string99.base, #t~string99.offset, 1);call write~init~int(100, #t~string99.base, 1 + #t~string99.offset, 1);call write~init~int(10, #t~string99.base, 2 + #t~string99.offset, 1);call write~init~int(0, #t~string99.base, 3 + #t~string99.offset, 1);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string102.base, #t~string102.offset, 1);call write~init~int(100, #t~string102.base, 1 + #t~string102.offset, 1);call write~init~int(10, #t~string102.base, 2 + #t~string102.offset, 1);call write~init~int(0, #t~string102.base, 3 + #t~string102.offset, 1);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(10);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(34);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(30);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(16);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(20);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0; 337#L-1true havoc main_#res;havoc main_#t~nondet93, main_#t~ret94, main_~retValue_acc~37, main_~tmp~11;main_~retValue_acc~37 := main_#t~nondet93;havoc main_#t~nondet93;havoc main_~tmp~11; 216#L2071true havoc valid_product_#res;havoc valid_product_~retValue_acc~36;havoc valid_product_~retValue_acc~36;valid_product_~retValue_acc~36 := 1;valid_product_#res := valid_product_~retValue_acc~36; 377#L2079true main_#t~ret94 := valid_product_#res;main_~tmp~11 := main_#t~ret94;havoc main_#t~ret94; 442#L2466true assume 0 != main_~tmp~11;havoc setup_#t~nondet88, setup_#t~nondet90, setup_#t~nondet92, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 465#L1519true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 91#L1525-2true 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; 151#L1084true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 424#L1090-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string87.base, #t~string87.offset;havoc setup_#t~nondet88;~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; 441#L1519-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 105#L1525-5true 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; 153#L1084-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 402#L1090-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string89.base, #t~string89.offset;havoc setup_#t~nondet90;~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; 448#L1519-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 70#L1525-8true 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; 141#L1084-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 413#L1090-8true setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset := #t~string91.base, #t~string91.offset;havoc setup_#t~nondet92; 613#L2453true havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~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~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~1, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~1;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 648#L2287-1true [2020-11-29 19:20:07,374 INFO L796 eck$LassoCheckResult]: Loop: 648#L2287-1true assume !false; 578#L2142true assume test_~splverifierCounter~0 < 4; 544#L2143true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 326#L2149true assume !(0 == test_~op1~0); 22#L2162true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet70;havoc test_#t~nondet70; 373#L2167true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 648#L2287-1true [2020-11-29 19:20:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:20:07,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-11-29 19:20:07,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:20:07,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614586161] [2020-11-29 19:20:07,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:20:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:20:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:20:07,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614586161] [2020-11-29 19:20:07,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:20:07,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:20:07,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311123746] [2020-11-29 19:20:07,940 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:20:07,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:20:07,941 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-11-29 19:20:07,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:20:07,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945233423] [2020-11-29 19:20:07,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:20:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:20:07,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:20:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:20:07,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:20:07,991 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:20:08,056 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:20:08,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:20:08,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:20:08,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:20:08,062 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 19:20:08,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:08,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:20:08,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:20:08,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec7_product17.cil.c_Iteration1_Loop [2020-11-29 19:20:08,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:20:08,063 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:20:08,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:08,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:08,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:08,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:08,272 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:20:08,273 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/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) [2020-11-29 19:20:08,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:20:08,293 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_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:08,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 19:20:08,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 19:20:08,355 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 19:20:08,380 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:20:08,380 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:20:08,380 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:20:08,380 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:20:08,380 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:20:08,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:08,381 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:20:08,381 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:20:08,381 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec7_product17.cil.c_Iteration1_Loop [2020-11-29 19:20:08,381 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:20:08,381 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:20:08,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:08,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:08,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:08,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:08,507 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:20:08,512 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:20:08,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:20:08,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:20:08,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:20:08,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:20:08,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:20:08,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:20:08,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:20:08,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:08,535 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:20:08,545 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 19:20:08,545 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_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:08,585 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:20:08,585 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 19:20:08,586 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:20:08,587 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2020-11-29 19:20:08,623 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 19:20:08,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:20:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:20:08,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:20:08,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:20:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:20:09,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:20:09,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:20:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:20:09,115 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:20:09,116 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 680 states. Second operand 4 states. [2020-11-29 19:20:09,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 680 states.. Second operand 4 states. Result 3010 states and 5250 transitions. Complement of second has 7 states. [2020-11-29 19:20:09,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:20:09,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:20:09,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2994 transitions. [2020-11-29 19:20:09,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2994 transitions. Stem has 18 letters. Loop has 6 letters. [2020-11-29 19:20:09,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:20:09,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2994 transitions. Stem has 24 letters. Loop has 6 letters. [2020-11-29 19:20:09,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:20:09,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2994 transitions. Stem has 18 letters. Loop has 12 letters. [2020-11-29 19:20:09,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:20:09,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3010 states and 5250 transitions. [2020-11-29 19:20:09,578 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 501 [2020-11-29 19:20:09,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3010 states to 1035 states and 1896 transitions. [2020-11-29 19:20:09,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 532 [2020-11-29 19:20:09,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 533 [2020-11-29 19:20:09,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1035 states and 1896 transitions. [2020-11-29 19:20:09,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:20:09,610 INFO L691 BuchiCegarLoop]: Abstraction has 1035 states and 1896 transitions. [2020-11-29 19:20:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states and 1896 transitions. [2020-11-29 19:20:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 534. [2020-11-29 19:20:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-11-29 19:20:09,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 975 transitions. [2020-11-29 19:20:09,717 INFO L714 BuchiCegarLoop]: Abstraction has 534 states and 975 transitions. [2020-11-29 19:20:09,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:20:09,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:20:09,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:20:09,723 INFO L87 Difference]: Start difference. First operand 534 states and 975 transitions. Second operand 3 states. [2020-11-29 19:20:09,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:20:09,793 INFO L93 Difference]: Finished difference Result 1048 states and 1915 transitions. [2020-11-29 19:20:09,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:20:09,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1048 states and 1915 transitions. [2020-11-29 19:20:09,805 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 502 [2020-11-29 19:20:09,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1048 states to 1048 states and 1915 transitions. [2020-11-29 19:20:09,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 544 [2020-11-29 19:20:09,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 544 [2020-11-29 19:20:09,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1048 states and 1915 transitions. [2020-11-29 19:20:09,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:20:09,821 INFO L691 BuchiCegarLoop]: Abstraction has 1048 states and 1915 transitions. [2020-11-29 19:20:09,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states and 1915 transitions. [2020-11-29 19:20:09,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 533. [2020-11-29 19:20:09,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-11-29 19:20:09,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 971 transitions. [2020-11-29 19:20:09,843 INFO L714 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-11-29 19:20:09,844 INFO L594 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-11-29 19:20:09,844 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:20:09,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 533 states and 971 transitions. [2020-11-29 19:20:09,847 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-11-29 19:20:09,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:20:09,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:20:09,849 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:20:09,849 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:20:09,849 INFO L794 eck$LassoCheckResult]: Stem: 5681#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string43.base, #t~string43.offset, 1);call write~init~int(115, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(10, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 3 + #t~string43.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(10);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(12);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(10);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(18);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(16);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(44);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(44);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(9);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(11);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(19);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string99.base, #t~string99.offset, 1);call write~init~int(100, #t~string99.base, 1 + #t~string99.offset, 1);call write~init~int(10, #t~string99.base, 2 + #t~string99.offset, 1);call write~init~int(0, #t~string99.base, 3 + #t~string99.offset, 1);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string102.base, #t~string102.offset, 1);call write~init~int(100, #t~string102.base, 1 + #t~string102.offset, 1);call write~init~int(10, #t~string102.base, 2 + #t~string102.offset, 1);call write~init~int(0, #t~string102.base, 3 + #t~string102.offset, 1);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(10);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(34);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(30);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(16);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(20);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0; 5411#L-1 havoc main_#res;havoc main_#t~nondet93, main_#t~ret94, main_~retValue_acc~37, main_~tmp~11;main_~retValue_acc~37 := main_#t~nondet93;havoc main_#t~nondet93;havoc main_~tmp~11; 5412#L2071 havoc valid_product_#res;havoc valid_product_~retValue_acc~36;havoc valid_product_~retValue_acc~36;valid_product_~retValue_acc~36 := 1;valid_product_#res := valid_product_~retValue_acc~36; 5514#L2079 main_#t~ret94 := valid_product_#res;main_~tmp~11 := main_#t~ret94;havoc main_#t~ret94; 5515#L2466 assume 0 != main_~tmp~11;havoc setup_#t~nondet88, setup_#t~nondet90, setup_#t~nondet92, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 5699#L1519 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 5608#L1525-2 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; 5609#L1084 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5653#L1090-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string87.base, #t~string87.offset;havoc setup_#t~nondet88;~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; 5665#L1519-2 assume !(1 == setClientId_~handle); 5698#L1522-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 5638#L1525-5 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; 5639#L1084-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5614#L1090-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string89.base, #t~string89.offset;havoc setup_#t~nondet90;~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; 5615#L1519-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 5546#L1525-8 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; 5547#L1084-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5633#L1090-8 setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset := #t~string91.base, #t~string91.offset;havoc setup_#t~nondet92; 5643#L2453 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~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~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~1, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~1;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 5869#L2287-1 assume !false; 5837#L2142 [2020-11-29 19:20:09,849 INFO L796 eck$LassoCheckResult]: Loop: 5837#L2142 assume test_~splverifierCounter~0 < 4; 5821#L2143 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 5822#L2149 assume !(0 == test_~op1~0); 5469#L2162 assume !(0 == test_~op2~0); 5470#L2173 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet71;havoc test_#t~nondet71; 5476#L2178 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; 5505#L1084-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5537#L1090-11 test_~op3~0 := 1; 5461#L2287-1 assume !false; 5837#L2142 [2020-11-29 19:20:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:20:09,850 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-11-29 19:20:09,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:20:09,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467823216] [2020-11-29 19:20:09,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:20:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:20:10,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:20:10,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467823216] [2020-11-29 19:20:10,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:20:10,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:20:10,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088708207] [2020-11-29 19:20:10,014 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:20:10,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:20:10,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-11-29 19:20:10,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:20:10,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322437426] [2020-11-29 19:20:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:20:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:20:10,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:20:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:20:10,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:20:10,060 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:20:10,153 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:20:10,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:20:10,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:20:10,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:20:10,153 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 19:20:10,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:10,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:20:10,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:20:10,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec7_product17.cil.c_Iteration2_Loop [2020-11-29 19:20:10,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:20:10,154 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:20:10,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,401 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:20:10,402 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:20:10,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 19:20:10,410 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_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/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) [2020-11-29 19:20:10,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 19:20:10,457 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 [2020-11-29 19:20:10,501 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 19:20:10,507 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:20:10,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:20:10,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:20:10,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:20:10,507 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:20:10,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:10,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:20:10,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:20:10,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec7_product17.cil.c_Iteration2_Loop [2020-11-29 19:20:10,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:20:10,508 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:20:10,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:20:10,789 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:20:10,789 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:20:10,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:20:10,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:20:10,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:20:10,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:20:10,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:20:10,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:20:10,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:20:10,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:10,805 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:20:10,813 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 19:20:10,813 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_5ffe6386-6c13-40c5-9a50-3d7b214b87d7/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:20:10,820 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:20:10,821 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 19:20:10,821 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:20:10,821 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:20:10,862 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 19:20:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:20:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:20:11,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:20:11,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:20:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:20:11,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:20:11,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:20:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:20:11,198 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 19:20:11,199 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440 Second operand 4 states. [2020-11-29 19:20:11,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440. Second operand 4 states. Result 1039 states and 1901 transitions. Complement of second has 6 states. [2020-11-29 19:20:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:20:11,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:20:11,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2020-11-29 19:20:11,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 9 letters. [2020-11-29 19:20:11,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:20:11,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 29 letters. Loop has 9 letters. [2020-11-29 19:20:11,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:20:11,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 18 letters. [2020-11-29 19:20:11,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:20:11,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1901 transitions. [2020-11-29 19:20:11,269 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:20:11,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 0 states and 0 transitions. [2020-11-29 19:20:11,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:20:11,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:20:11,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:20:11,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:20:11,270 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:20:11,270 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:20:11,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:20:11,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:20:11,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:20:11,272 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-11-29 19:20:11,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:20:11,272 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 19:20:11,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:20:11,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 19:20:11,272 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:20:11,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:20:11,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:20:11,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:20:11,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:20:11,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:20:11,273 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:20:11,273 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:20:11,274 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:20:11,274 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:20:11,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:20:11,274 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:20:11,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:20:11,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:20:11 BoogieIcfgContainer [2020-11-29 19:20:11,281 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:20:11,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:20:11,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:20:11,282 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:20:11,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:20:07" (3/4) ... [2020-11-29 19:20:11,285 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:20:11,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:20:11,288 INFO L168 Benchmark]: Toolchain (without parser) took 9383.42 ms. Allocated memory was 100.7 MB in the beginning and 224.4 MB in the end (delta: 123.7 MB). Free memory was 64.0 MB in the beginning and 93.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 94.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:20:11,289 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 100.7 MB. Free memory was 70.5 MB in the beginning and 70.5 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:20:11,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1040.94 ms. Allocated memory is still 100.7 MB. Free memory was 63.8 MB in the beginning and 37.6 MB in the end (delta: 26.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:20:11,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 248.63 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 37.6 MB in the beginning and 112.5 MB in the end (delta: -74.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:20:11,295 INFO L168 Benchmark]: Boogie Preprocessor took 181.49 ms. Allocated memory is still 144.7 MB. Free memory was 112.5 MB in the beginning and 102.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:20:11,302 INFO L168 Benchmark]: RCFGBuilder took 3671.63 ms. Allocated memory was 144.7 MB in the beginning and 224.4 MB in the end (delta: 79.7 MB). Free memory was 102.8 MB in the beginning and 140.9 MB in the end (delta: -38.1 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:20:11,302 INFO L168 Benchmark]: BuchiAutomizer took 4223.23 ms. Allocated memory is still 224.4 MB. Free memory was 140.9 MB in the beginning and 94.7 MB in the end (delta: 46.2 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:20:11,303 INFO L168 Benchmark]: Witness Printer took 4.30 ms. Allocated memory is still 224.4 MB. Free memory was 94.7 MB in the beginning and 93.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:20:11,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 100.7 MB. Free memory was 70.5 MB in the beginning and 70.5 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1040.94 ms. Allocated memory is still 100.7 MB. Free memory was 63.8 MB in the beginning and 37.6 MB in the end (delta: 26.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 248.63 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 37.6 MB in the beginning and 112.5 MB in the end (delta: -74.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 181.49 ms. Allocated memory is still 144.7 MB. Free memory was 112.5 MB in the beginning and 102.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3671.63 ms. Allocated memory was 144.7 MB in the beginning and 224.4 MB in the end (delta: 79.7 MB). Free memory was 102.8 MB in the beginning and 140.9 MB in the end (delta: -38.1 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4223.23 ms. Allocated memory is still 224.4 MB. Free memory was 140.9 MB in the beginning and 94.7 MB in the end (delta: 46.2 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.30 ms. Allocated memory is still 224.4 MB. Free memory was 94.7 MB in the beginning and 93.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * splverifierCounter + 7 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 533 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3786 SDtfs, 3292 SDslu, 4769 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: 73ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...