./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product17.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_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product17.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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 56a3df753b8357150e799a33059d6ce1914ebf0f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 16:04:34,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:04:34,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:04:34,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:04:34,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:04:34,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:04:34,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:04:34,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:04:34,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:04:34,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:04:34,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:04:34,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:04:34,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:04:34,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:04:34,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:04:34,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:04:34,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:04:34,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:04:34,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:04:34,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:04:34,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:04:34,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:04:34,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:04:34,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:04:34,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:04:34,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:04:34,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:04:34,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:04:34,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:04:34,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:04:34,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:04:34,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:04:34,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:04:34,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:04:34,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:04:34,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:04:34,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:04:34,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:04:34,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:04:34,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:04:34,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:04:34,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 16:04:34,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:04:34,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:04:34,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:04:34,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:04:34,845 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 16:04:34,845 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 16:04:34,846 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 16:04:34,846 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 16:04:34,846 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 16:04:34,846 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 16:04:34,847 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 16:04:34,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:04:34,847 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:04:34,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:04:34,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:04:34,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:04:34,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:04:34,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 16:04:34,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 16:04:34,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 16:04:34,849 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:04:34,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:04:34,850 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 16:04:34,850 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:04:34,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 16:04:34,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:04:34,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 16:04:34,851 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 16:04:34,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:04:34,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 16:04:34,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 16:04:34,853 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 16:04:34,854 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 16:04:34,854 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_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56a3df753b8357150e799a33059d6ce1914ebf0f [2020-12-01 16:04:35,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:04:35,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:04:35,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:04:35,169 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:04:35,170 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:04:35,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec4_product17.cil.c [2020-12-01 16:04:35,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/data/a681d7188/7ebb55f74b204469bc3d1b542f4726fa/FLAG769ea533c [2020-12-01 16:04:36,011 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:04:36,011 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/sv-benchmarks/c/product-lines/email_spec4_product17.cil.c [2020-12-01 16:04:36,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/data/a681d7188/7ebb55f74b204469bc3d1b542f4726fa/FLAG769ea533c [2020-12-01 16:04:36,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/data/a681d7188/7ebb55f74b204469bc3d1b542f4726fa [2020-12-01 16:04:36,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:04:36,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:04:36,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:04:36,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:04:36,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:04:36,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:04:36" (1/1) ... [2020-12-01 16:04:36,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c31862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:36, skipping insertion in model container [2020-12-01 16:04:36,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:04:36" (1/1) ... [2020-12-01 16:04:36,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:04:36,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:04:36,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:04:37,000 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:04:37,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:04:37,341 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:04:37,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37 WrapperNode [2020-12-01 16:04:37,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:04:37,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:04:37,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:04:37,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:04:37,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:04:37,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:04:37,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:04:37,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:04:37,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... [2020-12-01 16:04:37,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:04:37,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:04:37,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:04:37,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:04:37,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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 16:04:37,868 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-12-01 16:04:37,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:04:37,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:04:37,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:04:37,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:04:41,399 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:04:41,400 INFO L298 CfgBuilder]: Removed 449 assume(true) statements. [2020-12-01 16:04:41,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:04:41 BoogieIcfgContainer [2020-12-01 16:04:41,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:04:41,406 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 16:04:41,407 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 16:04:41,411 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 16:04:41,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:04:41,413 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 04:04:36" (1/3) ... [2020-12-01 16:04:41,415 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3538095e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:04:41, skipping insertion in model container [2020-12-01 16:04:41,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:04:41,415 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:04:37" (2/3) ... [2020-12-01 16:04:41,416 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3538095e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:04:41, skipping insertion in model container [2020-12-01 16:04:41,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:04:41,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:04:41" (3/3) ... [2020-12-01 16:04:41,420 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec4_product17.cil.c [2020-12-01 16:04:41,499 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 16:04:41,499 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 16:04:41,500 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 16:04:41,500 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 16:04:41,500 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 16:04:41,500 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 16:04:41,500 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 16:04:41,501 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 16:04:41,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 722 states. [2020-12-01 16:04:41,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-12-01 16:04:41,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:04:41,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:04:41,669 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 16:04:41,669 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-12-01 16:04:41,669 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 16:04:41,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 722 states. [2020-12-01 16:04:41,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-12-01 16:04:41,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:04:41,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:04:41,694 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 16:04:41,695 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-12-01 16:04:41,714 INFO L794 eck$LassoCheckResult]: Stem: 477#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(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(44);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(44);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(11);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(19);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string31.base, #t~string31.offset, 1);call write~init~int(100, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(10, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string34.base, #t~string34.offset, 1);call write~init~int(100, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(10, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(10);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(34);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(16);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(20);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string67.base, #t~string67.offset, 1);call write~init~int(115, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(10, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(10);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(12);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(10);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(18);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(13);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(16);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(25);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(30);call #t~string120.base, #t~string120.offset := #Ultimate.allocOnStack(9);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(21);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(30);call #t~string123.base, #t~string123.offset := #Ultimate.allocOnStack(9);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(21);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(30);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(9);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(25);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(30);call #t~string132.base, #t~string132.offset := #Ultimate.allocOnStack(9);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(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_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 363#L-1true havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~17, main_~tmp~4;havoc main_~retValue_acc~17;havoc main_~tmp~4; 134#L1789true havoc valid_product_#res;havoc valid_product_~retValue_acc~24;havoc valid_product_~retValue_acc~24;valid_product_~retValue_acc~24 := 1;valid_product_#res := valid_product_~retValue_acc~24; 330#L1797true main_#t~ret26 := valid_product_#res;main_~tmp~4 := main_#t~ret26;havoc main_#t~ret26; 170#L1323true assume 0 != main_~tmp~4;havoc setup_#t~nondet21, setup_#t~nondet23, setup_#t~nondet25, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 457#L1145true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 635#L1151-2true 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; 136#L710true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 439#L716-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string20.base, #t~string20.offset;havoc setup_#t~nondet21;~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; 463#L1145-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 645#L1151-5true 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; 100#L710-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 234#L716-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string22.base, #t~string22.offset;havoc setup_#t~nondet23;~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; 471#L1145-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 617#L1151-8true 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; 108#L710-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 218#L716-8true setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string24.base, #t~string24.offset;havoc setup_#t~nondet25; 478#L1310true havoc test_#t~nondet90, test_#t~nondet91, test_#t~nondet92, test_#t~nondet93, test_#t~nondet94, test_#t~nondet95, test_#t~nondet96, test_#t~nondet97, test_#t~nondet98, test_#t~nondet99, test_#t~nondet100, 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~16, test_~tmp___0~7, test_~tmp___1~4, test_~tmp___2~3, test_~tmp___3~1, test_~tmp___4~1, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~16;havoc test_~tmp___0~7;havoc test_~tmp___1~4;havoc test_~tmp___2~3;havoc test_~tmp___3~1;havoc test_~tmp___4~1;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 297#L2513-1true [2020-12-01 16:04:41,715 INFO L796 eck$LassoCheckResult]: Loop: 297#L2513-1true assume !false; 223#L2368true assume test_~splverifierCounter~0 < 4; 171#L2369true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 692#L2375true assume !(0 == test_~op1~0); 367#L2388true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet91;havoc test_#t~nondet91; 34#L2393true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 297#L2513-1true [2020-12-01 16:04:41,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:04:41,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-12-01 16:04:41,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:04:41,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35304565] [2020-12-01 16:04:41,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:04:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:04:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:04:42,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35304565] [2020-12-01 16:04:42,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 16:04:42,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 16:04:42,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29663052] [2020-12-01 16:04:42,307 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 16:04:42,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:04:42,309 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-12-01 16:04:42,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:04:42,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399414249] [2020-12-01 16:04:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:04:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:04:42,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:04:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:04:42,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:04:42,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:04:42,479 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:04:42,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:04:42,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:04:42,481 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:04:42,482 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 16:04:42,482 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:42,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:04:42,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:04:42,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product17.cil.c_Iteration1_Loop [2020-12-01 16:04:42,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:04:42,483 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:04:42,519 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 16:04:42,531 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 16:04:42,539 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 16:04:42,550 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 16:04:42,664 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:04:42,665 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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 16:04:42,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:04:42,690 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_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 16:04:42,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 16:04:42,762 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:42,781 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 16:04:42,824 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:04:42,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:04:42,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:04:42,825 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:04:42,825 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:04:42,825 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:42,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:04:42,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:04:42,826 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product17.cil.c_Iteration1_Loop [2020-12-01 16:04:42,826 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:04:42,826 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:04:42,828 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 16:04:42,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:04:42,851 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 16:04:42,862 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 16:04:42,984 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:04:42,990 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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 16:04:43,006 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 16:04:43,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:04:43,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:04:43,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:04:43,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:04:43,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:04:43,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:43,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:04:43,027 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:04:43,049 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 16:04:43,049 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_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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 16:04:43,055 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 16:04:43,055 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 16:04:43,056 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:04:43,057 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 16:04:43,101 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 16:04:43,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:04:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:04:43,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:04:43,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:04:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:04:43,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:04:43,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:04:43,730 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 16:04:43,749 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 16:04:43,750 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 722 states. Second operand 4 states. [2020-12-01 16:04:44,122 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 722 states.. Second operand 4 states. Result 3220 states and 5640 transitions. Complement of second has 7 states. [2020-12-01 16:04:44,123 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 16:04:44,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 16:04:44,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3228 transitions. [2020-12-01 16:04:44,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3228 transitions. Stem has 18 letters. Loop has 6 letters. [2020-12-01 16:04:44,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:04:44,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3228 transitions. Stem has 24 letters. Loop has 6 letters. [2020-12-01 16:04:44,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:04:44,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3228 transitions. Stem has 18 letters. Loop has 12 letters. [2020-12-01 16:04:44,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:04:44,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3220 states and 5640 transitions. [2020-12-01 16:04:44,226 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 501 [2020-12-01 16:04:44,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3220 states to 1035 states and 1896 transitions. [2020-12-01 16:04:44,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 532 [2020-12-01 16:04:44,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 533 [2020-12-01 16:04:44,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1035 states and 1896 transitions. [2020-12-01 16:04:44,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 16:04:44,257 INFO L692 BuchiCegarLoop]: Abstraction has 1035 states and 1896 transitions. [2020-12-01 16:04:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states and 1896 transitions. [2020-12-01 16:04:44,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 534. [2020-12-01 16:04:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-12-01 16:04:44,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 975 transitions. [2020-12-01 16:04:44,366 INFO L715 BuchiCegarLoop]: Abstraction has 534 states and 975 transitions. [2020-12-01 16:04:44,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:04:44,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 16:04:44,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 16:04:44,374 INFO L87 Difference]: Start difference. First operand 534 states and 975 transitions. Second operand 3 states. [2020-12-01 16:04:44,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:04:44,464 INFO L93 Difference]: Finished difference Result 1048 states and 1915 transitions. [2020-12-01 16:04:44,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 16:04:44,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1048 states and 1915 transitions. [2020-12-01 16:04:44,479 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 502 [2020-12-01 16:04:44,494 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1048 states to 1048 states and 1915 transitions. [2020-12-01 16:04:44,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 544 [2020-12-01 16:04:44,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 544 [2020-12-01 16:04:44,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1048 states and 1915 transitions. [2020-12-01 16:04:44,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 16:04:44,497 INFO L692 BuchiCegarLoop]: Abstraction has 1048 states and 1915 transitions. [2020-12-01 16:04:44,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states and 1915 transitions. [2020-12-01 16:04:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 533. [2020-12-01 16:04:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-12-01 16:04:44,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 971 transitions. [2020-12-01 16:04:44,520 INFO L715 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-12-01 16:04:44,520 INFO L595 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-12-01 16:04:44,520 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 16:04:44,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 533 states and 971 transitions. [2020-12-01 16:04:44,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-12-01 16:04:44,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:04:44,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:04:44,526 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 16:04:44,527 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:04:44,527 INFO L794 eck$LassoCheckResult]: Stem: 5863#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(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(44);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(44);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(11);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(19);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string31.base, #t~string31.offset, 1);call write~init~int(100, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(10, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string34.base, #t~string34.offset, 1);call write~init~int(100, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(10, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(10);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(34);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(16);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(20);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string67.base, #t~string67.offset, 1);call write~init~int(115, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(10, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(10);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(12);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(10);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(18);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(13);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(16);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(25);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(30);call #t~string120.base, #t~string120.offset := #Ultimate.allocOnStack(9);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(21);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(30);call #t~string123.base, #t~string123.offset := #Ultimate.allocOnStack(9);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(21);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(30);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(9);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(25);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(30);call #t~string132.base, #t~string132.offset := #Ultimate.allocOnStack(9);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(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_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 5647#L-1 havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~17, main_~tmp~4;havoc main_~retValue_acc~17;havoc main_~tmp~4; 5648#L1789 havoc valid_product_#res;havoc valid_product_~retValue_acc~24;havoc valid_product_~retValue_acc~24;valid_product_~retValue_acc~24 := 1;valid_product_#res := valid_product_~retValue_acc~24; 5866#L1797 main_#t~ret26 := valid_product_#res;main_~tmp~4 := main_#t~ret26;havoc main_#t~ret26; 5953#L1323 assume 0 != main_~tmp~4;havoc setup_#t~nondet21, setup_#t~nondet23, setup_#t~nondet25, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 5843#L1145 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 5813#L1151-2 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; 5867#L710 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5805#L716-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string20.base, #t~string20.offset;havoc setup_#t~nondet21;~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; 5814#L1145-2 assume !(1 == setClientId_~handle); 5850#L1148-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 6087#L1151-5 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; 5845#L710-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5846#L716-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string22.base, #t~string22.offset;havoc setup_#t~nondet23;~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; 5856#L1145-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 5857#L1151-8 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; 5851#L710-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5852#L716-8 setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string24.base, #t~string24.offset;havoc setup_#t~nondet25; 5864#L1310 havoc test_#t~nondet90, test_#t~nondet91, test_#t~nondet92, test_#t~nondet93, test_#t~nondet94, test_#t~nondet95, test_#t~nondet96, test_#t~nondet97, test_#t~nondet98, test_#t~nondet99, test_#t~nondet100, 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~16, test_~tmp___0~7, test_~tmp___1~4, test_~tmp___2~3, test_~tmp___3~1, test_~tmp___4~1, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~16;havoc test_~tmp___0~7;havoc test_~tmp___1~4;havoc test_~tmp___2~3;havoc test_~tmp___3~1;havoc test_~tmp___4~1;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 5865#L2513-1 assume !false; 6051#L2368 [2020-12-01 16:04:44,528 INFO L796 eck$LassoCheckResult]: Loop: 6051#L2368 assume test_~splverifierCounter~0 < 4; 5956#L2369 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 5957#L2375 assume !(0 == test_~op1~0); 5651#L2388 assume !(0 == test_~op2~0); 5652#L2399 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet92;havoc test_#t~nondet92; 5686#L2404 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; 5695#L710-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5859#L716-11 test_~op3~0 := 1; 5645#L2513-1 assume !false; 6051#L2368 [2020-12-01 16:04:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:04:44,528 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-12-01 16:04:44,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:04:44,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012558481] [2020-12-01 16:04:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:04:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:04:44,708 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 16:04:44,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012558481] [2020-12-01 16:04:44,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 16:04:44,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 16:04:44,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456771214] [2020-12-01 16:04:44,710 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 16:04:44,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:04:44,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-12-01 16:04:44,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:04:44,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244049569] [2020-12-01 16:04:44,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:04:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:04:44,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:04:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:04:44,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:04:44,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:04:44,857 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:04:44,858 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:04:44,858 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:04:44,858 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:04:44,858 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 16:04:44,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:44,859 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:04:44,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:04:44,859 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product17.cil.c_Iteration2_Loop [2020-12-01 16:04:44,859 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:04:44,859 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:04:44,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:04:44,872 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 16:04:44,881 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 16:04:44,885 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 16:04:44,893 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 16:04:44,903 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 16:04:44,908 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 16:04:45,122 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:04:45,123 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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 16:04:45,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:04:45,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 16:04:45,161 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 16:04:45,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Honda state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:45,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:04:45,281 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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 16:04:45,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 16:04:45,361 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:45,420 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 16:04:45,424 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:04:45,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:04:45,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:04:45,424 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:04:45,424 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:04:45,424 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:45,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:04:45,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:04:45,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product17.cil.c_Iteration2_Loop [2020-12-01 16:04:45,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:04:45,425 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:04:45,427 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 16:04:45,443 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 16:04:45,454 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 16:04:45,458 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 16:04:45,466 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 16:04:45,471 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 16:04:45,486 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 16:04:45,684 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:04:45,684 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:45,702 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 16:04:45,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:04:45,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:04:45,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:04:45,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:04:45,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:04:45,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:04:45,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:04:45,715 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:04:45,728 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 16:04:45,729 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_3317d1e2-ea36-4422-a93d-da1d4e7a0d58/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 16:04:45,737 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 16:04:45,737 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 16:04:45,737 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:04:45,737 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:04:45,777 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 16:04:45,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:04:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:04:45,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:04:45,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:04:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:04:46,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:04:46,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:04:46,126 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 16:04:46,133 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 16:04:46,133 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440 Second operand 4 states. [2020-12-01 16:04:46,191 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440. Second operand 4 states. Result 1039 states and 1901 transitions. Complement of second has 6 states. [2020-12-01 16:04:46,191 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 16:04:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 16:04:46,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2020-12-01 16:04:46,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 9 letters. [2020-12-01 16:04:46,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:04:46,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 29 letters. Loop has 9 letters. [2020-12-01 16:04:46,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:04:46,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 18 letters. [2020-12-01 16:04:46,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:04:46,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1901 transitions. [2020-12-01 16:04:46,215 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:04:46,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 0 states and 0 transitions. [2020-12-01 16:04:46,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 16:04:46,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 16:04:46,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 16:04:46,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:04:46,217 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:04:46,217 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:04:46,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:04:46,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 16:04:46,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 16:04:46,220 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-12-01 16:04:46,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:04:46,220 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-12-01 16:04:46,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 16:04:46,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-12-01 16:04:46,221 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:04:46,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 16:04:46,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 16:04:46,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 16:04:46,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 16:04:46,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:04:46,222 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:04:46,222 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:04:46,223 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:04:46,223 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 16:04:46,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 16:04:46,223 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:04:46,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 16:04:46,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 04:04:46 BoogieIcfgContainer [2020-12-01 16:04:46,232 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 16:04:46,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:04:46,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:04:46,233 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:04:46,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:04:41" (3/4) ... [2020-12-01 16:04:46,239 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 16:04:46,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:04:46,242 INFO L168 Benchmark]: Toolchain (without parser) took 10096.80 ms. Allocated memory was 81.8 MB in the beginning and 262.1 MB in the end (delta: 180.4 MB). Free memory was 50.1 MB in the beginning and 112.8 MB in the end (delta: -62.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:04:46,242 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 81.8 MB. Free memory is still 38.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:04:46,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1216.79 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 49.8 MB in the beginning and 69.1 MB in the end (delta: -19.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:04:46,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 228.97 ms. Allocated memory is still 98.6 MB. Free memory was 69.1 MB in the beginning and 56.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:04:46,248 INFO L168 Benchmark]: Boogie Preprocessor took 191.76 ms. Allocated memory is still 98.6 MB. Free memory was 56.5 MB in the beginning and 47.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:04:46,256 INFO L168 Benchmark]: RCFGBuilder took 3619.36 ms. Allocated memory was 98.6 MB in the beginning and 188.7 MB in the end (delta: 90.2 MB). Free memory was 47.0 MB in the beginning and 98.8 MB in the end (delta: -51.8 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:04:46,257 INFO L168 Benchmark]: BuchiAutomizer took 4825.73 ms. Allocated memory was 188.7 MB in the beginning and 262.1 MB in the end (delta: 73.4 MB). Free memory was 98.8 MB in the beginning and 112.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:04:46,257 INFO L168 Benchmark]: Witness Printer took 6.51 ms. Allocated memory is still 262.1 MB. Free memory is still 112.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:04:46,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 81.8 MB. Free memory is still 38.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1216.79 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 49.8 MB in the beginning and 69.1 MB in the end (delta: -19.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 228.97 ms. Allocated memory is still 98.6 MB. Free memory was 69.1 MB in the beginning and 56.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 191.76 ms. Allocated memory is still 98.6 MB. Free memory was 56.5 MB in the beginning and 47.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3619.36 ms. Allocated memory was 98.6 MB in the beginning and 188.7 MB in the end (delta: 90.2 MB). Free memory was 47.0 MB in the beginning and 98.8 MB in the end (delta: -51.8 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4825.73 ms. Allocated memory was 188.7 MB in the beginning and 262.1 MB in the end (delta: 73.4 MB). Free memory was 98.8 MB in the beginning and 112.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. * Witness Printer took 6.51 ms. Allocated memory is still 262.1 MB. Free memory is still 112.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * splverifierCounter + 7 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 533 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3942 SDtfs, 3448 SDslu, 5003 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: 65ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...