./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product07.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_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product07.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/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 30f494416a796abbf2c8eefee6e87a7fdcd01801 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:39:05,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:39:05,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:39:05,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:39:05,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:39:05,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:39:05,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:39:05,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:39:05,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:39:05,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:39:05,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:39:05,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:39:05,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:39:05,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:39:05,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:39:05,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:39:05,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:39:05,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:39:05,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:39:05,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:39:05,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:39:05,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:39:05,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:39:05,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:39:05,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:39:05,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:39:05,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:39:05,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:39:05,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:39:05,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:39:05,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:39:05,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:39:05,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:39:05,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:39:05,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:39:05,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:39:05,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:39:05,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:39:05,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:39:05,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:39:05,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:39:05,444 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:39:05,486 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:39:05,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:39:05,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:39:05,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:39:05,489 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:39:05,489 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:39:05,489 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:39:05,489 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:39:05,490 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:39:05,490 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:39:05,490 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:39:05,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:39:05,491 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:39:05,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:39:05,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:39:05,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:39:05,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:39:05,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:39:05,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:39:05,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:39:05,493 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:39:05,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:39:05,494 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:39:05,494 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:39:05,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:39:05,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:39:05,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:39:05,495 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:39:05,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:39:05,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:39:05,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:39:05,496 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:39:05,497 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:39:05,498 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_870f6485-64ea-440a-bde2-50d2a0bdc32b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f494416a796abbf2c8eefee6e87a7fdcd01801 [2020-12-01 15:39:05,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:39:05,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:39:05,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:39:05,883 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:39:05,884 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:39:05,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec11_product07.cil.c [2020-12-01 15:39:05,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/data/9965688f1/27a626cf6eae43b6897c7440f94449c8/FLAG643d1921b [2020-12-01 15:39:06,912 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:39:06,914 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/sv-benchmarks/c/product-lines/email_spec11_product07.cil.c [2020-12-01 15:39:06,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/data/9965688f1/27a626cf6eae43b6897c7440f94449c8/FLAG643d1921b [2020-12-01 15:39:07,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/data/9965688f1/27a626cf6eae43b6897c7440f94449c8 [2020-12-01 15:39:07,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:39:07,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:39:07,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:07,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:39:07,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:39:07,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:07" (1/1) ... [2020-12-01 15:39:07,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726fd27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:07, skipping insertion in model container [2020-12-01 15:39:07,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:07" (1/1) ... [2020-12-01 15:39:07,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:39:07,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:39:07,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:07,877 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:39:08,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:08,109 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:39:08,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08 WrapperNode [2020-12-01 15:39:08,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:08,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:08,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:39:08,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:39:08,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:08,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:39:08,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:39:08,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:39:08,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... [2020-12-01 15:39:08,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:39:08,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:39:08,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:39:08,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:39:08,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-12-01 15:39:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:39:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:39:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:39:08,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:39:10,791 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:39:10,792 INFO L298 CfgBuilder]: Removed 293 assume(true) statements. [2020-12-01 15:39:10,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:10 BoogieIcfgContainer [2020-12-01 15:39:10,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:39:10,796 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:39:10,796 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:39:10,800 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:39:10,801 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:10,801 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:39:07" (1/3) ... [2020-12-01 15:39:10,803 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66b89323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:39:10, skipping insertion in model container [2020-12-01 15:39:10,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:10,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:08" (2/3) ... [2020-12-01 15:39:10,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66b89323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:39:10, skipping insertion in model container [2020-12-01 15:39:10,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:10,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:10" (3/3) ... [2020-12-01 15:39:10,806 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec11_product07.cil.c [2020-12-01 15:39:10,861 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:39:10,861 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:39:10,862 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:39:10,862 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:39:10,863 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:39:10,863 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:39:10,863 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:39:10,863 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:39:10,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 353 states. [2020-12-01 15:39:10,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2020-12-01 15:39:10,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:10,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:10,986 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:10,986 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:39:10,986 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:39:10,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 353 states. [2020-12-01 15:39:10,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2020-12-01 15:39:10,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:10,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:11,001 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:11,001 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:39:11,009 INFO L794 eck$LassoCheckResult]: Stem: 132#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(29);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(44);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(44);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(9);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(11);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(10);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(34);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(16);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(22);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(10);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(12);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(10);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(18);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(30);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(9);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(21);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(30);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(21);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(30);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(9);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(25);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(30);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(9);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(25);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(20);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string106.base, #t~string106.offset, 1);call write~init~int(115, #t~string106.base, 1 + #t~string106.offset, 1);call write~init~int(10, #t~string106.base, 2 + #t~string106.offset, 1);call write~init~int(0, #t~string106.base, 3 + #t~string106.offset, 1);~__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;~__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;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true havoc main_#res;havoc main_#t~nondet22, main_#t~ret23, main_~retValue_acc~28, main_~tmp~3;main_~retValue_acc~28 := main_#t~nondet22;havoc main_#t~nondet22;havoc main_~tmp~3; 307#L1990true havoc valid_product_#res;havoc valid_product_~retValue_acc~37;havoc valid_product_~retValue_acc~37;valid_product_~retValue_acc~37 := 1;valid_product_#res := valid_product_~retValue_acc~37; 144#L1998true main_#t~ret23 := valid_product_#res;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; 209#L1664true assume 0 != main_~tmp~3;havoc setup_#t~nondet17, setup_#t~nondet19, setup_#t~nondet21, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob_~bob___0, setup_bob_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 346#L1516true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 315#L1522-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string16.base, #t~string16.offset;havoc setup_#t~nondet17;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh_~rjh___0, setup_rjh_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 350#L1516-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 292#L1522-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck_~chuck___0, setup_chuck_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 329#L1516-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 303#L1522-8true setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string20.base, #t~string20.offset;havoc setup_#t~nondet21; 160#L1651true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, 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~12, test_~tmp___0~3, test_~tmp___1~3, test_~tmp___2~2, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~12;havoc test_~tmp___0~3;havoc test_~tmp___1~3;havoc test_~tmp___2~2;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 237#L2170-1true [2020-12-01 15:39:11,010 INFO L796 eck$LassoCheckResult]: Loop: 237#L2170-1true assume !false; 272#L2043true assume test_~splverifierCounter~0 < 4; 204#L2044true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 341#L2050true assume 0 == test_~op1~0;test_~tmp___9~0 := test_#t~nondet57;havoc test_#t~nondet57; 271#L2054true assume 0 != test_~tmp___9~0;test_~op1~0 := 1; 237#L2170-1true [2020-12-01 15:39:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:11,017 INFO L82 PathProgramCache]: Analyzing trace with hash -580026000, now seen corresponding path program 1 times [2020-12-01 15:39:11,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:11,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642303875] [2020-12-01 15:39:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:11,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:39:11,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642303875] [2020-12-01 15:39:11,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:11,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:39:11,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380206252] [2020-12-01 15:39:11,489 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:39:11,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:11,494 INFO L82 PathProgramCache]: Analyzing trace with hash 103192148, now seen corresponding path program 1 times [2020-12-01 15:39:11,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:11,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262292312] [2020-12-01 15:39:11,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:11,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:11,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:11,594 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:11,675 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:39:11,676 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:39:11,676 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:39:11,677 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:39:11,677 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:39:11,677 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:11,677 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:39:11,677 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:39:11,678 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product07.cil.c_Iteration1_Loop [2020-12-01 15:39:11,678 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:39:11,678 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:39:11,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:11,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:11,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:11,843 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:39:11,844 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:11,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:39:11,860 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_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:11,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:39:11,959 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:11,984 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:39:12,024 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:39:12,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:39:12,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:39:12,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:39:12,024 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:39:12,025 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:12,025 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:39:12,025 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:39:12,025 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product07.cil.c_Iteration1_Loop [2020-12-01 15:39:12,025 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:39:12,025 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:39:12,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:12,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:12,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:12,145 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:39:12,151 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:12,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:39:12,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:12,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:12,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:12,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:12,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:12,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:12,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:12,195 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:39:12,210 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:39:12,210 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_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:12,250 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:39:12,251 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:39:12,251 INFO L510 LassoAnalysis]: Proved termination. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:12,252 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op1~0) = -2*ULTIMATE.start_test_~op1~0 + 1 Supporting invariants [] [2020-12-01 15:39:12,313 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:39:12,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:12,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:39:12,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:39:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:12,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:39:12,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:39:12,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:39:12,846 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 15:39:12,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 353 states. Second operand 4 states. [2020-12-01 15:39:13,202 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 353 states.. Second operand 4 states. Result 1602 states and 2707 transitions. Complement of second has 7 states. [2020-12-01 15:39:13,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:39:13,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:39:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1591 transitions. [2020-12-01 15:39:13,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1591 transitions. Stem has 12 letters. Loop has 5 letters. [2020-12-01 15:39:13,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:13,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1591 transitions. Stem has 17 letters. Loop has 5 letters. [2020-12-01 15:39:13,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:13,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1591 transitions. Stem has 12 letters. Loop has 10 letters. [2020-12-01 15:39:13,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:13,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1602 states and 2707 transitions. [2020-12-01 15:39:13,253 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2020-12-01 15:39:13,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1602 states to 307 states and 563 transitions. [2020-12-01 15:39:13,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 162 [2020-12-01 15:39:13,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 163 [2020-12-01 15:39:13,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 307 states and 563 transitions. [2020-12-01 15:39:13,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:39:13,271 INFO L692 BuchiCegarLoop]: Abstraction has 307 states and 563 transitions. [2020-12-01 15:39:13,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states and 563 transitions. [2020-12-01 15:39:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 164. [2020-12-01 15:39:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-01 15:39:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 298 transitions. [2020-12-01 15:39:13,428 INFO L715 BuchiCegarLoop]: Abstraction has 164 states and 298 transitions. [2020-12-01 15:39:13,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:13,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:13,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:13,439 INFO L87 Difference]: Start difference. First operand 164 states and 298 transitions. Second operand 3 states. [2020-12-01 15:39:13,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:13,561 INFO L93 Difference]: Finished difference Result 312 states and 568 transitions. [2020-12-01 15:39:13,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:39:13,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 568 transitions. [2020-12-01 15:39:13,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2020-12-01 15:39:13,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 312 states and 568 transitions. [2020-12-01 15:39:13,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2020-12-01 15:39:13,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2020-12-01 15:39:13,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 568 transitions. [2020-12-01 15:39:13,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:39:13,580 INFO L692 BuchiCegarLoop]: Abstraction has 312 states and 568 transitions. [2020-12-01 15:39:13,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 568 transitions. [2020-12-01 15:39:13,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 163. [2020-12-01 15:39:13,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-01 15:39:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 294 transitions. [2020-12-01 15:39:13,607 INFO L715 BuchiCegarLoop]: Abstraction has 163 states and 294 transitions. [2020-12-01 15:39:13,608 INFO L595 BuchiCegarLoop]: Abstraction has 163 states and 294 transitions. [2020-12-01 15:39:13,608 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:39:13,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 163 states and 294 transitions. [2020-12-01 15:39:13,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2020-12-01 15:39:13,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:13,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:13,613 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:13,613 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:13,613 INFO L794 eck$LassoCheckResult]: Stem: 2584#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(29);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(44);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(44);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(9);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(11);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(10);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(34);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(16);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(22);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(10);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(12);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(10);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(18);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(30);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(9);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(21);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(30);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(21);call #t~string95.base, #t~string95.offset := #Ultimate.allocOnStack(30);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(9);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(25);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(30);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(9);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(25);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(20);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string106.base, #t~string106.offset, 1);call write~init~int(115, #t~string106.base, 1 + #t~string106.offset, 1);call write~init~int(10, #t~string106.base, 2 + #t~string106.offset, 1);call write~init~int(0, #t~string106.base, 3 + #t~string106.offset, 1);~__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;~__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;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2521#L-1 havoc main_#res;havoc main_#t~nondet22, main_#t~ret23, main_~retValue_acc~28, main_~tmp~3;main_~retValue_acc~28 := main_#t~nondet22;havoc main_#t~nondet22;havoc main_~tmp~3; 2522#L1990 havoc valid_product_#res;havoc valid_product_~retValue_acc~37;havoc valid_product_~retValue_acc~37;valid_product_~retValue_acc~37 := 1;valid_product_#res := valid_product_~retValue_acc~37; 2595#L1998 main_#t~ret23 := valid_product_#res;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; 2573#L1664 assume 0 != main_~tmp~3;havoc setup_#t~nondet17, setup_#t~nondet19, setup_#t~nondet21, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob_~bob___0, setup_bob_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 2574#L1516 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 2594#L1522-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string16.base, #t~string16.offset;havoc setup_#t~nondet17;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh_~rjh___0, setup_rjh_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 2622#L1516-2 assume !(1 == setClientId_~handle); 2635#L1519-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 2549#L1522-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck_~chuck___0, setup_chuck_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 2550#L1516-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 2560#L1522-8 setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string20.base, #t~string20.offset;havoc setup_#t~nondet21; 2581#L1651 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, 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~12, test_~tmp___0~3, test_~tmp___1~3, test_~tmp___2~2, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~12;havoc test_~tmp___0~3;havoc test_~tmp___1~3;havoc test_~tmp___2~2;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 2649#L2170-1 assume !false; 2633#L2043 [2020-12-01 15:39:13,615 INFO L796 eck$LassoCheckResult]: Loop: 2633#L2043 assume test_~splverifierCounter~0 < 4; 2533#L2044 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 2534#L2050 assume !(0 == test_~op1~0); 2641#L2060 assume !(0 == test_~op2~0); 2616#L2074 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet59;havoc test_#t~nondet59; 2617#L2079 assume 0 != test_~tmp___7~0;test_~op3~0 := 1; 2591#L2170-1 assume !false; 2633#L2043 [2020-12-01 15:39:13,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:13,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1897365039, now seen corresponding path program 1 times [2020-12-01 15:39:13,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:13,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189883264] [2020-12-01 15:39:13,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:39:13,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189883264] [2020-12-01 15:39:13,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:13,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:39:13,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674444327] [2020-12-01 15:39:13,810 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:39:13,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:13,810 INFO L82 PathProgramCache]: Analyzing trace with hash -235666265, now seen corresponding path program 1 times [2020-12-01 15:39:13,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:13,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781137290] [2020-12-01 15:39:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:13,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:13,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:13,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:13,896 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:39:13,897 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:39:13,897 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:39:13,897 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:39:13,897 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:39:13,898 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:13,898 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:39:13,898 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:39:13,898 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product07.cil.c_Iteration2_Loop [2020-12-01 15:39:13,898 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:39:13,899 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:39:13,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:13,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:13,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:13,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:13,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:14,077 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:39:14,078 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:14,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:39:14,087 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:14,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:39:14,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~tmp___7~0=-1, ULTIMATE.start_test_#t~nondet59=-1} Honda state: {ULTIMATE.start_test_~tmp___7~0=-1, ULTIMATE.start_test_#t~nondet59=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:14,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:39:14,157 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:14,174 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:39:14,174 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~op1~0=-1} Honda state: {ULTIMATE.start_test_~op1~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:14,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:39:14,226 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:14,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:39:14,303 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:14,370 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:39:14,374 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:39:14,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:39:14,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:39:14,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:39:14,374 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:39:14,374 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:14,374 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:39:14,375 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:39:14,375 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product07.cil.c_Iteration2_Loop [2020-12-01 15:39:14,375 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:39:14,375 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:39:14,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:14,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:14,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:14,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:14,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:39:14,535 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:39:14,535 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/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 15:39:14,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:39:14,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:14,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:14,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:14,547 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-12-01 15:39:14,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:14,549 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-12-01 15:39:14,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:14,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:14,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:39:14,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:14,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:14,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:14,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:14,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:14,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:14,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:14,629 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:39:14,639 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:39:14,639 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_870f6485-64ea-440a-bde2-50d2a0bdc32b/bin/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:14,645 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:39:14,645 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:39:14,645 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:39:14,645 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2020-12-01 15:39:14,685 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:39:14,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:15,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:39:15,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:39:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:15,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:39:15,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:39:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:39:15,173 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-12-01 15:39:15,174 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 163 states and 294 transitions. cyclomatic complexity: 133 Second operand 4 states. [2020-12-01 15:39:15,194 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 163 states and 294 transitions. cyclomatic complexity: 133. Second operand 4 states. Result 311 states and 568 transitions. Complement of second has 6 states. [2020-12-01 15:39:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:39:15,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:39:15,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2020-12-01 15:39:15,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 159 transitions. Stem has 14 letters. Loop has 7 letters. [2020-12-01 15:39:15,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:15,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 159 transitions. Stem has 21 letters. Loop has 7 letters. [2020-12-01 15:39:15,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:15,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 159 transitions. Stem has 14 letters. Loop has 14 letters. [2020-12-01 15:39:15,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:15,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 311 states and 568 transitions. [2020-12-01 15:39:15,204 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:39:15,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 311 states to 0 states and 0 transitions. [2020-12-01 15:39:15,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:39:15,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:39:15,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:39:15,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:39:15,205 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:39:15,205 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:39:15,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:15,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:15,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:15,207 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-12-01 15:39:15,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:15,207 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-12-01 15:39:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:39:15,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-12-01 15:39:15,208 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:39:15,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:39:15,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:39:15,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:39:15,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:39:15,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:39:15,209 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:39:15,209 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:39:15,209 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:39:15,209 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:39:15,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:39:15,210 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:39:15,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:39:15,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:39:15 BoogieIcfgContainer [2020-12-01 15:39:15,218 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:39:15,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:39:15,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:39:15,219 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:39:15,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:10" (3/4) ... [2020-12-01 15:39:15,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:39:15,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:39:15,226 INFO L168 Benchmark]: Toolchain (without parser) took 8164.64 ms. Allocated memory was 102.8 MB in the beginning and 178.3 MB in the end (delta: 75.5 MB). Free memory was 71.1 MB in the beginning and 99.4 MB in the end (delta: -28.3 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:15,226 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 81.8 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:15,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1046.32 ms. Allocated memory is still 102.8 MB. Free memory was 70.8 MB in the beginning and 56.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:15,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 188.76 ms. Allocated memory is still 102.8 MB. Free memory was 55.8 MB in the beginning and 48.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:15,232 INFO L168 Benchmark]: Boogie Preprocessor took 123.61 ms. Allocated memory is still 102.8 MB. Free memory was 48.1 MB in the beginning and 42.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:15,238 INFO L168 Benchmark]: RCFGBuilder took 2369.50 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 42.2 MB in the beginning and 87.5 MB in the end (delta: -45.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:15,240 INFO L168 Benchmark]: BuchiAutomizer took 4421.87 ms. Allocated memory was 142.6 MB in the beginning and 178.3 MB in the end (delta: 35.7 MB). Free memory was 87.5 MB in the beginning and 99.4 MB in the end (delta: -11.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:15,240 INFO L168 Benchmark]: Witness Printer took 5.03 ms. Allocated memory is still 178.3 MB. Free memory is still 99.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:15,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 81.8 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1046.32 ms. Allocated memory is still 102.8 MB. Free memory was 70.8 MB in the beginning and 56.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 188.76 ms. Allocated memory is still 102.8 MB. Free memory was 55.8 MB in the beginning and 48.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 123.61 ms. Allocated memory is still 102.8 MB. Free memory was 48.1 MB in the beginning and 42.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2369.50 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 42.2 MB in the beginning and 87.5 MB in the end (delta: -45.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4421.87 ms. Allocated memory was 142.6 MB in the beginning and 178.3 MB in the end (delta: 35.7 MB). Free memory was 87.5 MB in the beginning and 99.4 MB in the end (delta: -11.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.03 ms. Allocated memory is still 178.3 MB. Free memory is still 99.4 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 * op1 + 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 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 292 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 163 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1585 SDtfs, 1432 SDslu, 2061 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: inital27 mio100 ax100 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 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...