./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg --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 331c48a04a8caddf27498f6f02cdac644ba512a5bbe373bec7a9be0d5f3b8263 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:46:27,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:46:27,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:46:27,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:46:27,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:46:27,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:46:27,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:46:27,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:46:27,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:46:27,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:46:27,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:46:27,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:46:27,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:46:27,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:46:27,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:46:27,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:46:27,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:46:27,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:46:27,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:46:27,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:46:27,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:46:27,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:46:27,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:46:27,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:46:27,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:46:27,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:46:27,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:46:27,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:46:27,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:46:27,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:46:27,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:46:27,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:46:27,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:46:27,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:46:27,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:46:27,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:46:27,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:46:27,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:46:27,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:46:27,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:46:27,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:46:27,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:46:27,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:46:27,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:46:27,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:46:27,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:46:27,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:46:27,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:46:27,486 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:46:27,486 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:46:27,486 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:46:27,487 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:46:27,488 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:46:27,488 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:46:27,489 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:46:27,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:46:27,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:46:27,490 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:46:27,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:46:27,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:46:27,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:46:27,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:46:27,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:46:27,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:46:27,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:46:27,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:46:27,492 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:46:27,493 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:46:27,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:46:27,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:46:27,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:46:27,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:46:27,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:46:27,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:46:27,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:46:27,498 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_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 331c48a04a8caddf27498f6f02cdac644ba512a5bbe373bec7a9be0d5f3b8263 [2021-10-28 09:46:27,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:46:27,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:46:27,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:46:27,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:46:27,889 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:46:27,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c [2021-10-28 09:46:27,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/data/7f40fdf84/06db42115d3a455ca43131f700c3caf8/FLAG1ec31a1be [2021-10-28 09:46:28,732 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:46:28,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c [2021-10-28 09:46:28,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/data/7f40fdf84/06db42115d3a455ca43131f700c3caf8/FLAG1ec31a1be [2021-10-28 09:46:28,923 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/data/7f40fdf84/06db42115d3a455ca43131f700c3caf8 [2021-10-28 09:46:28,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:46:28,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:46:28,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:46:28,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:46:28,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:46:28,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:46:28" (1/1) ... [2021-10-28 09:46:28,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2373dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:28, skipping insertion in model container [2021-10-28 09:46:28,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:46:28" (1/1) ... [2021-10-28 09:46:28,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:46:29,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:46:29,463 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c[12529,12542] [2021-10-28 09:46:29,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:46:29,737 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:46:29,790 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c[12529,12542] [2021-10-28 09:46:29,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:46:29,964 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:46:29,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29 WrapperNode [2021-10-28 09:46:29,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:46:29,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:46:29,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:46:29,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:46:29,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:46:30,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:46:30,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:46:30,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:46:30,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:46:30,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:46:30,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:46:30,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:46:30,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (1/1) ... [2021-10-28 09:46:30,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:30,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:30,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:30,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:46:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-28 09:46:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:46:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:46:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:46:30,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:46:32,615 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:46:32,616 INFO L299 CfgBuilder]: Removed 405 assume(true) statements. [2021-10-28 09:46:32,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:46:32 BoogieIcfgContainer [2021-10-28 09:46:32,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:46:32,622 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:46:32,623 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:46:32,627 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:46:32,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:46:32,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:46:28" (1/3) ... [2021-10-28 09:46:32,629 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@295860fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:46:32, skipping insertion in model container [2021-10-28 09:46:32,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:46:32,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:29" (2/3) ... [2021-10-28 09:46:32,630 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@295860fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:46:32, skipping insertion in model container [2021-10-28 09:46:32,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:46:32,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:46:32" (3/3) ... [2021-10-28 09:46:32,632 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec0_product36.cil.c [2021-10-28 09:46:32,703 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:46:32,703 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:46:32,704 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:46:32,704 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:46:32,704 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:46:32,704 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:46:32,704 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:46:32,704 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:46:32,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 471 states, 470 states have (on average 1.6829787234042553) internal successors, (791), 470 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:32,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-10-28 09:46:32,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:32,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:32,853 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:32,853 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:46:32,854 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:46:32,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 471 states, 470 states have (on average 1.6829787234042553) internal successors, (791), 470 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:32,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-10-28 09:46:32,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:32,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:32,872 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:32,872 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:46:32,878 INFO L791 eck$LassoCheckResult]: Stem: 464#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string43.base, #t~string43.offset, 1);call write~init~int(115, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(10, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 3 + #t~string43.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(10);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(12);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(10);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(18);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(10);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(34);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(16);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(22);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(16);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(44);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(44);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(9);call #t~string105.base, #t~string105.offset := #Ultimate.allocOnStack(9);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(11);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 404#L-1true havoc main_#res;havoc main_#t~nondet109, main_#t~ret110, main_~retValue_acc~41, main_~tmp~17;main_~retValue_acc~41 := main_#t~nondet109;havoc main_#t~nondet109;havoc main_~tmp~17; 34#L85true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 274#L93true main_#t~ret110 := valid_product_#res;main_~tmp~17 := main_#t~ret110;havoc main_#t~ret110; 168#L2616true assume 0 != main_~tmp~17;havoc setup_#t~nondet104, setup_#t~nondet106, setup_#t~nondet108, 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; 61#L1554true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 289#L1560-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string103.base, #t~string103.offset;havoc setup_#t~nondet104;~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; 28#L1554-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 249#L1560-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string105.base, #t~string105.offset;havoc setup_#t~nondet106;~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; 349#L1554-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 139#L1560-8true setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string107.base, #t~string107.offset;havoc setup_#t~nondet108; 325#L2603true havoc test_#t~nondet85, test_#t~nondet86, test_#t~nondet87, test_#t~nondet88, test_#t~nondet89, test_#t~nondet90, test_#t~nondet91, test_#t~nondet92, test_#t~nondet93, test_#t~nondet94, test_#t~nondet95, 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~15, test_~tmp___0~2, test_~tmp___1~2, 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~15;havoc test_~tmp___0~2;havoc test_~tmp___1~2;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; 395#L2482-1true [2021-10-28 09:46:32,879 INFO L793 eck$LassoCheckResult]: Loop: 395#L2482-1true assume !false; 179#L2352true assume test_~splverifierCounter~0 < 4; 14#L2353true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 446#L2359true assume 0 == test_~op1~0;test_~tmp___9~0 := test_#t~nondet85;havoc test_#t~nondet85; 345#L2363true assume 0 != test_~tmp___9~0;test_~op1~0 := 1; 395#L2482-1true [2021-10-28 09:46:32,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:32,886 INFO L85 PathProgramCache]: Analyzing trace with hash -580026000, now seen corresponding path program 1 times [2021-10-28 09:46:32,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:32,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791733963] [2021-10-28 09:46:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:32,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:33,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:33,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791733963] [2021-10-28 09:46:33,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791733963] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:33,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:33,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:46:33,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066926661] [2021-10-28 09:46:33,271 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:46:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:33,281 INFO L85 PathProgramCache]: Analyzing trace with hash 103192148, now seen corresponding path program 1 times [2021-10-28 09:46:33,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:33,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796939488] [2021-10-28 09:46:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:33,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:33,295 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:33,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:33,396 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:46:33,397 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:46:33,397 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:46:33,397 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:46:33,398 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:46:33,398 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:33,398 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:46:33,398 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:46:33,398 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product36.cil.c_Iteration1_Loop [2021-10-28 09:46:33,399 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:46:33,399 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:46:33,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:33,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:33,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:33,505 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:46:33,506 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:46:33,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:33,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:33,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:33,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:46:33,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:46:33,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:46:33,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:33,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:33,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:33,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:33,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:46:33,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:46:33,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:46:33,631 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:46:33,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:33,660 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:46:33,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:46:33,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:46:33,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:46:33,660 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:46:33,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:33,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:46:33,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:46:33,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product36.cil.c_Iteration1_Loop [2021-10-28 09:46:33,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:46:33,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:46:33,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:33,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:33,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:33,771 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:46:33,777 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:46:33,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:33,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:33,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:33,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:33,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:33,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:33,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:33,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:33,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:33,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:46:33,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:33,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:33,819 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:46:33,828 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:46:33,828 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:46:33,830 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:33,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:33,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:33,855 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:46:33,855 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:46:33,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:46:33,856 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:46:33,857 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op1~0) = -2*ULTIMATE.start_test_~op1~0 + 1 Supporting invariants [] [2021-10-28 09:46:33,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:33,896 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:46:33,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:34,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:34,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:46:34,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:34,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:46:34,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:34,330 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 [2021-10-28 09:46:34,333 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 471 states, 470 states have (on average 1.6829787234042553) internal successors, (791), 470 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:34,604 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 471 states, 470 states have (on average 1.6829787234042553) internal successors, (791), 470 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2212 states and 3689 transitions. Complement of second has 7 states. [2021-10-28 09:46:34,604 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 [2021-10-28 09:46:34,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:34,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2175 transitions. [2021-10-28 09:46:34,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2175 transitions. Stem has 12 letters. Loop has 5 letters. [2021-10-28 09:46:34,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:34,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2175 transitions. Stem has 17 letters. Loop has 5 letters. [2021-10-28 09:46:34,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:34,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2175 transitions. Stem has 12 letters. Loop has 10 letters. [2021-10-28 09:46:34,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:34,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2212 states and 3689 transitions. [2021-10-28 09:46:34,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-10-28 09:46:34,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2212 states to 323 states and 591 transitions. [2021-10-28 09:46:34,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 170 [2021-10-28 09:46:34,662 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2021-10-28 09:46:34,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 323 states and 591 transitions. [2021-10-28 09:46:34,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:46:34,663 INFO L681 BuchiCegarLoop]: Abstraction has 323 states and 591 transitions. [2021-10-28 09:46:34,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states and 591 transitions. [2021-10-28 09:46:34,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 172. [2021-10-28 09:46:34,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 172 states have (on average 1.813953488372093) internal successors, (312), 171 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 312 transitions. [2021-10-28 09:46:34,703 INFO L704 BuchiCegarLoop]: Abstraction has 172 states and 312 transitions. [2021-10-28 09:46:34,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:34,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:46:34,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:46:34,711 INFO L87 Difference]: Start difference. First operand 172 states and 312 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:34,750 INFO L93 Difference]: Finished difference Result 328 states and 596 transitions. [2021-10-28 09:46:34,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:46:34,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 596 transitions. [2021-10-28 09:46:34,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2021-10-28 09:46:34,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 328 states and 596 transitions. [2021-10-28 09:46:34,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2021-10-28 09:46:34,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2021-10-28 09:46:34,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 328 states and 596 transitions. [2021-10-28 09:46:34,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:46:34,761 INFO L681 BuchiCegarLoop]: Abstraction has 328 states and 596 transitions. [2021-10-28 09:46:34,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states and 596 transitions. [2021-10-28 09:46:34,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 171. [2021-10-28 09:46:34,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.8011695906432748) internal successors, (308), 170 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:34,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 308 transitions. [2021-10-28 09:46:34,778 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 308 transitions. [2021-10-28 09:46:34,779 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 308 transitions. [2021-10-28 09:46:34,780 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:46:34,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 308 transitions. [2021-10-28 09:46:34,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-10-28 09:46:34,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:34,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:34,782 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:34,784 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:34,784 INFO L791 eck$LassoCheckResult]: Stem: 3429#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string43.base, #t~string43.offset, 1);call write~init~int(115, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(10, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 3 + #t~string43.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(10);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(12);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(10);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(18);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(10);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(34);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(16);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(22);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(16);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(44);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(44);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(9);call #t~string105.base, #t~string105.offset := #Ultimate.allocOnStack(9);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(11);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 3410#L-1 havoc main_#res;havoc main_#t~nondet109, main_#t~ret110, main_~retValue_acc~41, main_~tmp~17;main_~retValue_acc~41 := main_#t~nondet109;havoc main_#t~nondet109;havoc main_~tmp~17; 3407#L85 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 3401#L93 main_#t~ret110 := valid_product_#res;main_~tmp~17 := main_#t~ret110;havoc main_#t~ret110; 3402#L2616 assume 0 != main_~tmp~17;havoc setup_#t~nondet104, setup_#t~nondet106, setup_#t~nondet108, 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; 3416#L1554 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3268#L1560-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string103.base, #t~string103.offset;havoc setup_#t~nondet104;~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; 3391#L1554-2 assume !(1 == setClientId_~handle); 3392#L1557-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 3288#L1560-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string105.base, #t~string105.offset;havoc setup_#t~nondet106;~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; 3289#L1554-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3342#L1560-8 setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string107.base, #t~string107.offset;havoc setup_#t~nondet108; 3343#L2603 havoc test_#t~nondet85, test_#t~nondet86, test_#t~nondet87, test_#t~nondet88, test_#t~nondet89, test_#t~nondet90, test_#t~nondet91, test_#t~nondet92, test_#t~nondet93, test_#t~nondet94, test_#t~nondet95, 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~15, test_~tmp___0~2, test_~tmp___1~2, 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~15;havoc test_~tmp___0~2;havoc test_~tmp___1~2;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; 3388#L2482-1 assume !false; 3393#L2352 [2021-10-28 09:46:34,785 INFO L793 eck$LassoCheckResult]: Loop: 3393#L2352 assume test_~splverifierCounter~0 < 4; 3326#L2353 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 3327#L2359 assume !(0 == test_~op1~0); 3376#L2369 assume !(0 == test_~op2~0); 3377#L2383 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet87;havoc test_#t~nondet87; 3411#L2388 assume 0 != test_~tmp___7~0;test_~op3~0 := 1; 3323#L2482-1 assume !false; 3393#L2352 [2021-10-28 09:46:34,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:34,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1897365039, now seen corresponding path program 1 times [2021-10-28 09:46:34,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:34,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194539395] [2021-10-28 09:46:34,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:34,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:35,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:35,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:35,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194539395] [2021-10-28 09:46:35,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194539395] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:35,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:35,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:46:35,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134790897] [2021-10-28 09:46:35,014 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:46:35,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:35,015 INFO L85 PathProgramCache]: Analyzing trace with hash -235666265, now seen corresponding path program 1 times [2021-10-28 09:46:35,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:35,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566168779] [2021-10-28 09:46:35,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:35,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:35,033 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:35,065 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:35,142 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:46:35,142 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:46:35,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:46:35,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:46:35,142 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:46:35,142 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:46:35,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:46:35,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product36.cil.c_Iteration2_Loop [2021-10-28 09:46:35,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:46:35,143 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:46:35,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:46:35,244 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:46:35,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:35,246 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:35,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:46:35,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:46:35,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:46:35,275 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:46:35,275 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~op1~0=4} Honda state: {ULTIMATE.start_test_~op1~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:46:35,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:35,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:35,317 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:35,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:46:35,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:46:35,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:46:35,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:35,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:35,391 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:35,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:46:35,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:46:35,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:46:35,459 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:46:35,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:35,463 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:46:35,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:46:35,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:46:35,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:46:35,463 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:46:35,463 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,463 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:46:35,463 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:46:35,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product36.cil.c_Iteration2_Loop [2021-10-28 09:46:35,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:46:35,464 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:46:35,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:35,610 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:46:35,611 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:46:35,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:35,627 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:35,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:46:35,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:35,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:35,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:35,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:35,703 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:46:35,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:35,704 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:46:35,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:35,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:35,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:35,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:35,769 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:35,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:46:35,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:35,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:35,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:35,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:35,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:35,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:35,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:35,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:35,796 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:46:35,800 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:46:35,801 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:46:35,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:35,806 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:35,813 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:46:35,813 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:46:35,813 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:46:35,813 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-10-28 09:46:35,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:46:35,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:35,852 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:46:35,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:36,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:46:36,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:36,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:46:36,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:36,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:36,211 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 [2021-10-28 09:46:36,212 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 171 states and 308 transitions. cyclomatic complexity: 139 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:36,232 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 171 states and 308 transitions. cyclomatic complexity: 139. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 327 states and 596 transitions. Complement of second has 6 states. [2021-10-28 09:46:36,232 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 [2021-10-28 09:46:36,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:36,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2021-10-28 09:46:36,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 14 letters. Loop has 7 letters. [2021-10-28 09:46:36,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:36,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 21 letters. Loop has 7 letters. [2021-10-28 09:46:36,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:36,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 14 letters. Loop has 14 letters. [2021-10-28 09:46:36,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:36,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 596 transitions. [2021-10-28 09:46:36,244 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:46:36,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 0 states and 0 transitions. [2021-10-28 09:46:36,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:46:36,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:46:36,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:46:36,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:36,245 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:46:36,245 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:46:36,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:36,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:46:36,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:46:36,247 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:36,248 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 09:46:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:46:36,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 09:46:36,248 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:46:36,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:46:36,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:46:36,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:46:36,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:46:36,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:36,251 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:46:36,254 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:46:36,254 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:46:36,254 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:46:36,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:46:36,254 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:46:36,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:46:36,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:46:36 BoogieIcfgContainer [2021-10-28 09:46:36,263 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:46:36,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:46:36,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:46:36,265 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:46:36,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:46:32" (3/4) ... [2021-10-28 09:46:36,270 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:46:36,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:46:36,273 INFO L168 Benchmark]: Toolchain (without parser) took 7343.54 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 57.6 MB in the beginning and 66.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 61.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:36,280 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:46:36,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1035.83 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 57.4 MB in the beginning and 78.7 MB in the end (delta: -21.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:36,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 200.15 ms. Allocated memory is still 125.8 MB. Free memory was 78.7 MB in the beginning and 68.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:36,283 INFO L168 Benchmark]: Boogie Preprocessor took 154.95 ms. Allocated memory is still 125.8 MB. Free memory was 68.1 MB in the beginning and 60.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:36,284 INFO L168 Benchmark]: RCFGBuilder took 2298.01 ms. Allocated memory is still 125.8 MB. Free memory was 60.4 MB in the beginning and 50.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:36,287 INFO L168 Benchmark]: BuchiAutomizer took 3640.48 ms. Allocated memory was 125.8 MB in the beginning and 163.6 MB in the end (delta: 37.7 MB). Free memory was 50.1 MB in the beginning and 66.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:36,288 INFO L168 Benchmark]: Witness Printer took 7.15 ms. Allocated memory is still 163.6 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:46:36,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1035.83 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 57.4 MB in the beginning and 78.7 MB in the end (delta: -21.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 200.15 ms. Allocated memory is still 125.8 MB. Free memory was 78.7 MB in the beginning and 68.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 154.95 ms. Allocated memory is still 125.8 MB. Free memory was 68.1 MB in the beginning and 60.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2298.01 ms. Allocated memory is still 125.8 MB. Free memory was 60.4 MB in the beginning and 50.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3640.48 ms. Allocated memory was 125.8 MB in the beginning and 163.6 MB in the end (delta: 37.7 MB). Free memory was 50.1 MB in the beginning and 66.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * Witness Printer took 7.15 ms. Allocated memory is still 163.6 MB. Free memory is still 66.0 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 7 + -2 * splverifierCounter 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 3.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 308 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 171 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2004 SDtfs, 1844 SDslu, 2679 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: 115ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:46:36,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:36,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f2fb2c7-b65a-4783-a198-30012e89fcbe/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...