./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/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 345d49eafb9ae336b56f9eeb4d694bcd8b19f80d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:24:09,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:24:09,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:24:09,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:24:09,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:24:09,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:24:09,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:24:09,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:24:09,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:24:09,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:24:09,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:24:09,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:24:09,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:24:09,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:24:09,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:24:09,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:24:09,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:24:09,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:24:09,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:24:09,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:24:09,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:24:09,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:24:09,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:24:09,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:24:09,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:24:09,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:24:09,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:24:09,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:24:09,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:24:09,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:24:09,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:24:09,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:24:09,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:24:09,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:24:09,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:24:09,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:24:09,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:24:09,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:24:09,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:24:09,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:24:09,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:24:09,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:24:09,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:24:09,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:24:09,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:24:09,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:24:09,700 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:24:09,700 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:24:09,701 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:24:09,701 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:24:09,701 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:24:09,701 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:24:09,702 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:24:09,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:24:09,703 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:24:09,703 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:24:09,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:24:09,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:24:09,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:24:09,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:24:09,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:24:09,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:24:09,705 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:24:09,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:24:09,705 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:24:09,705 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:24:09,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:24:09,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:24:09,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:24:09,706 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:24:09,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:24:09,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:24:09,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:24:09,709 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:24:09,710 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:24:09,711 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_e4df3c86-29b5-437c-a123-46088b11ec3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 345d49eafb9ae336b56f9eeb4d694bcd8b19f80d [2020-12-01 15:24:10,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:24:10,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:24:10,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:24:10,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:24:10,136 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:24:10,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c [2020-12-01 15:24:10,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/data/b94b8f8fc/06a6cbd6c1774008877c9a7716e1a0e8/FLAGe9796ba53 [2020-12-01 15:24:11,039 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:24:11,040 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c [2020-12-01 15:24:11,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/data/b94b8f8fc/06a6cbd6c1774008877c9a7716e1a0e8/FLAGe9796ba53 [2020-12-01 15:24:11,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/data/b94b8f8fc/06a6cbd6c1774008877c9a7716e1a0e8 [2020-12-01 15:24:11,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:24:11,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:24:11,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:24:11,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:24:11,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:24:11,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:24:11" (1/1) ... [2020-12-01 15:24:11,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279c171a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:11, skipping insertion in model container [2020-12-01 15:24:11,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:24:11" (1/1) ... [2020-12-01 15:24:11,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:24:11,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:24:12,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:24:12,060 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:24:12,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:24:12,302 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:24:12,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12 WrapperNode [2020-12-01 15:24:12,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:24:12,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:24:12,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:24:12,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:24:12,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:24:12,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:24:12,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:24:12,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:24:12,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... [2020-12-01 15:24:12,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:24:12,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:24:12,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:24:12,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:24:12,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-12-01 15:24:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:24:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:24:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:24:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:24:15,547 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:24:15,547 INFO L298 CfgBuilder]: Removed 383 assume(true) statements. [2020-12-01 15:24:15,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:15 BoogieIcfgContainer [2020-12-01 15:24:15,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:24:15,552 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:24:15,552 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:24:15,555 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:24:15,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:15,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:24:11" (1/3) ... [2020-12-01 15:24:15,557 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34485a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:24:15, skipping insertion in model container [2020-12-01 15:24:15,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:15,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:12" (2/3) ... [2020-12-01 15:24:15,558 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34485a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:24:15, skipping insertion in model container [2020-12-01 15:24:15,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:15,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:15" (3/3) ... [2020-12-01 15:24:15,561 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec9_product31.cil.c [2020-12-01 15:24:15,617 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:24:15,617 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:24:15,617 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:24:15,617 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:24:15,617 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:24:15,618 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:24:15,618 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:24:15,618 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:24:15,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 567 states. [2020-12-01 15:24:15,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-12-01 15:24:15,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:15,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:15,752 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:15,753 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:24:15,753 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:24:15,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 567 states. [2020-12-01 15:24:15,762 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-12-01 15:24:15,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:15,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:15,765 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:15,765 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:24:15,784 INFO L794 eck$LassoCheckResult]: Stem: 373#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(10);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(16);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(20);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(21);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(44);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(44);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(9);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(11);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(19);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~string105.base, #t~string105.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string105.base, #t~string105.offset, 1);call write~init~int(100, #t~string105.base, 1 + #t~string105.offset, 1);call write~init~int(10, #t~string105.base, 2 + #t~string105.offset, 1);call write~init~int(0, #t~string105.base, 3 + #t~string105.offset, 1);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(17);call #t~string115.base, #t~string115.offset := #Ultimate.allocOnStack(17);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(13);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(17);call #t~string123.base, #t~string123.offset := #Ultimate.allocOnStack(10);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(12);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(10);call #t~string132.base, #t~string132.offset := #Ultimate.allocOnStack(18);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(16);call #t~string138.base, #t~string138.offset := #Ultimate.allocOnStack(21);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(13);call #t~string144.base, #t~string144.offset := #Ultimate.allocOnStack(16);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(25);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~in_encrypted~0 := 0; 268#L-1true havoc main_#res;havoc main_#t~ret97, main_~retValue_acc~39, main_~tmp~16;havoc main_~retValue_acc~39;havoc main_~tmp~16; 438#L95true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 22#L103true main_#t~ret97 := valid_product_#res;main_~tmp~16 := main_#t~ret97;havoc main_#t~ret97; 394#L2708true assume 0 != main_~tmp~16;havoc setup_#t~nondet92, setup_#t~nondet94, setup_#t~nondet96, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.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_tmp3~3.base, setup_~__cil_tmp3~3.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; 108#L2174true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 361#L2180-2true 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; 401#L1739true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 88#L1745-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string91.base, #t~string91.offset;havoc setup_#t~nondet92;~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; 112#L2174-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 369#L2180-5true 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; 395#L1739-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 76#L1745-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string93.base, #t~string93.offset;havoc setup_#t~nondet94;~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; 113#L2174-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 346#L2180-8true 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; 396#L1739-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 56#L1745-8true setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string95.base, #t~string95.offset;havoc setup_#t~nondet96; 474#L2695true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, 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~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 285#L714-1true [2020-12-01 15:24:15,784 INFO L796 eck$LassoCheckResult]: Loop: 285#L714-1true assume !false; 555#L569true assume test_~splverifierCounter~0 < 4; 487#L570true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 44#L576true assume !(0 == test_~op1~0); 72#L589true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet11;havoc test_#t~nondet11; 398#L594true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 285#L714-1true [2020-12-01 15:24:15,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:15,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-12-01 15:24:15,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:15,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830404671] [2020-12-01 15:24:15,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:16,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830404671] [2020-12-01 15:24:16,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:16,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:24:16,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414281843] [2020-12-01 15:24:16,279 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:24:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:16,280 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-12-01 15:24:16,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:16,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415779971] [2020-12-01 15:24:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:16,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:16,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:16,357 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:16,439 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:24:16,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:24:16,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:24:16,441 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:24:16,441 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:24:16,441 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:16,441 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:24:16,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:24:16,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec9_product31.cil.c_Iteration1_Loop [2020-12-01 15:24:16,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:24:16,442 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:24:16,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,577 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:24:16,578 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:16,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:24:16,589 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_e4df3c86-29b5-437c-a123-46088b11ec3b/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 [2020-12-01 15:24:16,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:24:16,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 15:24:16,673 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:24:16,696 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:24:16,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:24:16,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:24:16,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:24:16,696 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:24:16,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:16,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:24:16,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:24:16,696 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec9_product31.cil.c_Iteration1_Loop [2020-12-01 15:24:16,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:24:16,697 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:24:16,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,809 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:24:16,814 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:16,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:16,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:16,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:16,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:16,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:16,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:16,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:16,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:16,843 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:24:16,861 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:24:16,861 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_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:16,955 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:24:16,955 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:24:16,956 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:24:16,957 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:17,012 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:24:17,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:17,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:24:17,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:17,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:24:17,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:17,416 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 15:24:17,417 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 567 states. Second operand 4 states. [2020-12-01 15:24:17,702 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 567 states.. Second operand 4 states. Result 2500 states and 4294 transitions. Complement of second has 7 states. [2020-12-01 15:24:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:24:17,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:24:17,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2444 transitions. [2020-12-01 15:24:17,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2444 transitions. Stem has 18 letters. Loop has 6 letters. [2020-12-01 15:24:17,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:17,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2444 transitions. Stem has 24 letters. Loop has 6 letters. [2020-12-01 15:24:17,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:17,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2444 transitions. Stem has 18 letters. Loop has 12 letters. [2020-12-01 15:24:17,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:17,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2500 states and 4294 transitions. [2020-12-01 15:24:17,762 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 423 [2020-12-01 15:24:17,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2500 states to 879 states and 1596 transitions. [2020-12-01 15:24:17,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 454 [2020-12-01 15:24:17,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 455 [2020-12-01 15:24:17,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 879 states and 1596 transitions. [2020-12-01 15:24:17,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:17,790 INFO L692 BuchiCegarLoop]: Abstraction has 879 states and 1596 transitions. [2020-12-01 15:24:17,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states and 1596 transitions. [2020-12-01 15:24:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 456. [2020-12-01 15:24:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2020-12-01 15:24:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 825 transitions. [2020-12-01 15:24:17,881 INFO L715 BuchiCegarLoop]: Abstraction has 456 states and 825 transitions. [2020-12-01 15:24:17,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:17,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:24:17,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:24:17,888 INFO L87 Difference]: Start difference. First operand 456 states and 825 transitions. Second operand 3 states. [2020-12-01 15:24:17,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:17,967 INFO L93 Difference]: Finished difference Result 892 states and 1615 transitions. [2020-12-01 15:24:17,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:24:17,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 892 states and 1615 transitions. [2020-12-01 15:24:17,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 424 [2020-12-01 15:24:17,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 892 states to 892 states and 1615 transitions. [2020-12-01 15:24:17,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 466 [2020-12-01 15:24:17,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 466 [2020-12-01 15:24:17,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 892 states and 1615 transitions. [2020-12-01 15:24:18,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:18,000 INFO L692 BuchiCegarLoop]: Abstraction has 892 states and 1615 transitions. [2020-12-01 15:24:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states and 1615 transitions. [2020-12-01 15:24:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 455. [2020-12-01 15:24:18,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-12-01 15:24:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 821 transitions. [2020-12-01 15:24:18,028 INFO L715 BuchiCegarLoop]: Abstraction has 455 states and 821 transitions. [2020-12-01 15:24:18,028 INFO L595 BuchiCegarLoop]: Abstraction has 455 states and 821 transitions. [2020-12-01 15:24:18,029 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:24:18,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 455 states and 821 transitions. [2020-12-01 15:24:18,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-12-01 15:24:18,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:18,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:18,037 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:18,037 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:18,037 INFO L794 eck$LassoCheckResult]: Stem: 4812#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(10);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(16);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(20);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(21);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(44);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(44);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(9);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(11);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(19);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~string105.base, #t~string105.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string105.base, #t~string105.offset, 1);call write~init~int(100, #t~string105.base, 1 + #t~string105.offset, 1);call write~init~int(10, #t~string105.base, 2 + #t~string105.offset, 1);call write~init~int(0, #t~string105.base, 3 + #t~string105.offset, 1);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(17);call #t~string115.base, #t~string115.offset := #Ultimate.allocOnStack(17);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(13);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(17);call #t~string123.base, #t~string123.offset := #Ultimate.allocOnStack(10);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(12);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(10);call #t~string132.base, #t~string132.offset := #Ultimate.allocOnStack(18);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(16);call #t~string138.base, #t~string138.offset := #Ultimate.allocOnStack(21);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(13);call #t~string144.base, #t~string144.offset := #Ultimate.allocOnStack(16);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(25);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~in_encrypted~0 := 0; 4550#L-1 havoc main_#res;havoc main_#t~ret97, main_~retValue_acc~39, main_~tmp~16;havoc main_~retValue_acc~39;havoc main_~tmp~16; 4551#L95 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 4586#L103 main_#t~ret97 := valid_product_#res;main_~tmp~16 := main_#t~ret97;havoc main_#t~ret97; 4587#L2708 assume 0 != main_~tmp~16;havoc setup_#t~nondet92, setup_#t~nondet94, setup_#t~nondet96, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.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_tmp3~3.base, setup_~__cil_tmp3~3.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; 4840#L2174 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4774#L2180-2 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; 4781#L1739 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4832#L1745-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string91.base, #t~string91.offset;havoc setup_#t~nondet92;~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; 4833#L2174-2 assume !(1 == setClientId_~handle); 4853#L2177-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 4806#L2180-5 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; 4807#L1739-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4770#L1745-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string93.base, #t~string93.offset;havoc setup_#t~nondet94;~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; 4803#L2174-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4719#L2180-8 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; 4742#L1739-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4722#L1745-8 setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string95.base, #t~string95.offset;havoc setup_#t~nondet96; 4723#L2695 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, 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~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 4944#L714-1 assume !false; 4597#L569 [2020-12-01 15:24:18,038 INFO L796 eck$LassoCheckResult]: Loop: 4597#L569 assume test_~splverifierCounter~0 < 4; 4949#L570 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 4632#L576 assume !(0 == test_~op1~0); 4634#L589 assume !(0 == test_~op2~0); 4782#L600 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet12;havoc test_#t~nondet12; 4784#L605 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; 4850#L1739-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4727#L1745-11 test_~op3~0 := 1; 4596#L714-1 assume !false; 4597#L569 [2020-12-01 15:24:18,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:18,039 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-12-01 15:24:18,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:18,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775741288] [2020-12-01 15:24:18,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:18,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:18,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775741288] [2020-12-01 15:24:18,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:18,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:24:18,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337520991] [2020-12-01 15:24:18,177 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:24:18,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:18,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-12-01 15:24:18,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:18,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314608132] [2020-12-01 15:24:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:18,190 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:18,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:18,206 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:18,317 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:24:18,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:24:18,317 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:24:18,317 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:24:18,317 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:24:18,317 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:18,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:24:18,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:24:18,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec9_product31.cil.c_Iteration2_Loop [2020-12-01 15:24:18,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:24:18,318 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:24:18,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,510 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:24:18,510 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:18,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:24:18,526 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_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:18,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:24:18,592 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:18,647 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:24:18,652 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:24:18,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:24:18,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:24:18,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:24:18,653 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:24:18,653 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:18,653 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:24:18,653 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:24:18,653 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec9_product31.cil.c_Iteration2_Loop [2020-12-01 15:24:18,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:24:18,653 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:24:18,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:18,881 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:24:18,881 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:18,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:18,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:18,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:18,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:18,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:18,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:18,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:18,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:18,913 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:24:18,918 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:24:18,918 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_e4df3c86-29b5-437c-a123-46088b11ec3b/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:18,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:24:18,926 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:24:18,926 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:24:18,926 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:18,960 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:24:18,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:19,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:24:19,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:19,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:24:19,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:19,348 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-12-01 15:24:19,348 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 455 states and 821 transitions. cyclomatic complexity: 368 Second operand 4 states. [2020-12-01 15:24:19,395 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 455 states and 821 transitions. cyclomatic complexity: 368. Second operand 4 states. Result 883 states and 1601 transitions. Complement of second has 6 states. [2020-12-01 15:24:19,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:24:19,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:24:19,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2020-12-01 15:24:19,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 20 letters. Loop has 9 letters. [2020-12-01 15:24:19,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:19,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 29 letters. Loop has 9 letters. [2020-12-01 15:24:19,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:19,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 20 letters. Loop has 18 letters. [2020-12-01 15:24:19,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:19,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 883 states and 1601 transitions. [2020-12-01 15:24:19,412 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:24:19,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 883 states to 0 states and 0 transitions. [2020-12-01 15:24:19,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:24:19,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:24:19,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:24:19,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:19,413 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:24:19,413 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:24:19,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:19,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:24:19,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:24:19,414 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-12-01 15:24:19,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:19,414 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-12-01 15:24:19,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:24:19,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-12-01 15:24:19,415 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:24:19,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:24:19,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:24:19,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:24:19,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:24:19,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:19,415 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:24:19,415 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:24:19,415 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:24:19,416 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:24:19,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:24:19,416 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:24:19,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:24:19,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:24:19 BoogieIcfgContainer [2020-12-01 15:24:19,422 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:24:19,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:24:19,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:24:19,423 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:24:19,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:15" (3/4) ... [2020-12-01 15:24:19,427 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:24:19,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:24:19,429 INFO L168 Benchmark]: Toolchain (without parser) took 8196.84 ms. Allocated memory was 109.1 MB in the beginning and 247.5 MB in the end (delta: 138.4 MB). Free memory was 69.8 MB in the beginning and 167.9 MB in the end (delta: -98.1 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:19,430 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 109.1 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:24:19,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1069.35 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 69.6 MB in the beginning and 98.0 MB in the end (delta: -28.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:19,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.12 ms. Allocated memory is still 132.1 MB. Free memory was 98.0 MB in the beginning and 87.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:19,434 INFO L168 Benchmark]: Boogie Preprocessor took 126.66 ms. Allocated memory is still 132.1 MB. Free memory was 87.1 MB in the beginning and 78.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:19,440 INFO L168 Benchmark]: RCFGBuilder took 2933.85 ms. Allocated memory was 132.1 MB in the beginning and 201.3 MB in the end (delta: 69.2 MB). Free memory was 78.7 MB in the beginning and 69.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 79.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:19,440 INFO L168 Benchmark]: BuchiAutomizer took 3870.30 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 69.7 MB in the beginning and 167.9 MB in the end (delta: -98.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:24:19,441 INFO L168 Benchmark]: Witness Printer took 4.43 ms. Allocated memory is still 247.5 MB. Free memory is still 167.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:24:19,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 109.1 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1069.35 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 69.6 MB in the beginning and 98.0 MB in the end (delta: -28.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 184.12 ms. Allocated memory is still 132.1 MB. Free memory was 98.0 MB in the beginning and 87.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 126.66 ms. Allocated memory is still 132.1 MB. Free memory was 87.1 MB in the beginning and 78.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2933.85 ms. Allocated memory was 132.1 MB in the beginning and 201.3 MB in the end (delta: 69.2 MB). Free memory was 78.7 MB in the beginning and 69.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 79.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3870.30 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 69.7 MB in the beginning and 167.9 MB in the end (delta: -98.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.43 ms. Allocated memory is still 247.5 MB. Free memory is still 167.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * splverifierCounter + 7 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 860 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 455 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3155 SDtfs, 2736 SDslu, 3935 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: 141ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...