./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product10.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_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/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_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product10.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/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_22d73a60-9f3c-4e70-92ff-ee7c933db1db/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 c9a35f77051831a79054d5620e487d68dd21285b0cc9c8ae29c469f997bd1ec7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:54:31,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:54:31,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:54:31,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:54:31,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:54:31,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:54:31,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:54:31,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:54:31,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:54:31,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:54:31,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:54:31,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:54:31,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:54:31,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:54:31,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:54:31,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:54:31,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:54:31,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:54:31,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:54:31,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:54:31,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:54:31,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:54:31,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:54:31,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:54:31,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:54:31,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:54:31,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:54:31,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:54:31,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:54:31,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:54:31,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:54:31,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:54:31,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:54:31,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:54:31,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:54:31,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:54:31,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:54:31,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:54:31,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:54:31,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:54:31,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:54:31,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:54:32,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:54:32,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:54:32,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:54:32,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:54:32,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:54:32,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:54:32,007 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:54:32,008 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:54:32,008 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:54:32,009 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:54:32,009 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:54:32,010 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:54:32,010 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:54:32,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:54:32,011 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:54:32,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:54:32,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:54:32,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:54:32,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:54:32,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:54:32,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:54:32,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:54:32,015 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:54:32,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:54:32,016 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:54:32,016 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:54:32,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:54:32,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:54:32,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:54:32,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:54:32,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:54:32,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:54:32,021 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:54:32,021 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_22d73a60-9f3c-4e70-92ff-ee7c933db1db/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9a35f77051831a79054d5620e487d68dd21285b0cc9c8ae29c469f997bd1ec7 [2021-10-28 09:54:32,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:54:32,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:54:32,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:54:32,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:54:32,362 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:54:32,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/email_spec11_product10.cil.c [2021-10-28 09:54:32,454 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/data/4aee30a31/4285a81e46fe4b2fbfa6a83761c7a7e6/FLAGf38ce2b2d [2021-10-28 09:54:33,377 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:54:33,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/sv-benchmarks/c/product-lines/email_spec11_product10.cil.c [2021-10-28 09:54:33,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/data/4aee30a31/4285a81e46fe4b2fbfa6a83761c7a7e6/FLAGf38ce2b2d [2021-10-28 09:54:33,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/data/4aee30a31/4285a81e46fe4b2fbfa6a83761c7a7e6 [2021-10-28 09:54:33,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:54:33,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:54:33,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:33,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:54:33,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:54:33,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:33" (1/1) ... [2021-10-28 09:54:33,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd4b468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:33, skipping insertion in model container [2021-10-28 09:54:33,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:33" (1/1) ... [2021-10-28 09:54:33,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:54:33,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:54:34,382 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_22d73a60-9f3c-4e70-92ff-ee7c933db1db/sv-benchmarks/c/product-lines/email_spec11_product10.cil.c[53446,53459] [2021-10-28 09:54:34,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:34,441 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:54:34,598 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_22d73a60-9f3c-4e70-92ff-ee7c933db1db/sv-benchmarks/c/product-lines/email_spec11_product10.cil.c[53446,53459] [2021-10-28 09:54:34,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:34,663 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:54:34,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34 WrapperNode [2021-10-28 09:54:34,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:34,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:54:34,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:54:34,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:54:34,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:54:34,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:54:34,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:54:34,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:54:34,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:54:34,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:54:34,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:54:34,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:54:34,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (1/1) ... [2021-10-28 09:54:34,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:35,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:35,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:35,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:54:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-28 09:54:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:54:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:54:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:54:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:54:36,841 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:54:36,842 INFO L299 CfgBuilder]: Removed 155 assume(true) statements. [2021-10-28 09:54:36,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:36 BoogieIcfgContainer [2021-10-28 09:54:36,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:54:36,847 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:54:36,847 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:54:36,851 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:54:36,852 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:36,853 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:54:33" (1/3) ... [2021-10-28 09:54:36,856 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@784302f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:54:36, skipping insertion in model container [2021-10-28 09:54:36,856 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:36,856 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:34" (2/3) ... [2021-10-28 09:54:36,857 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@784302f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:54:36, skipping insertion in model container [2021-10-28 09:54:36,857 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:36,857 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:36" (3/3) ... [2021-10-28 09:54:36,869 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec11_product10.cil.c [2021-10-28 09:54:36,948 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:54:36,948 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:54:36,948 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:54:36,949 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:54:36,949 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:54:36,949 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:54:36,949 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:54:36,949 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:54:36,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.6415094339622642) internal successors, (261), 159 states have internal predecessors, (261), 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 09:54:37,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-28 09:54:37,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:37,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:37,054 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:37,054 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:54:37,054 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:54:37,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.6415094339622642) internal successors, (261), 159 states have internal predecessors, (261), 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 09:54:37,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-28 09:54:37,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:37,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:37,069 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:37,069 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:54:37,076 INFO L791 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(29);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(10);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(16);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(22);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(20);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(44);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(44);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(9);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(11);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(10);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(12);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(10);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(18);~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 48#L-1true havoc main_#res;havoc main_#t~nondet88, main_#t~ret89, main_~retValue_acc~36, main_~tmp~15;main_~retValue_acc~36 := main_#t~nondet88;havoc main_#t~nondet88;havoc main_~tmp~15; 153#L2590true havoc valid_product_#res;havoc valid_product_~retValue_acc~41;havoc valid_product_~retValue_acc~41;valid_product_~retValue_acc~41 := 1;valid_product_#res := valid_product_~retValue_acc~41; 65#L2598true main_#t~ret89 := valid_product_#res;main_~tmp~15 := main_#t~ret89;havoc main_#t~ret89; 85#L2473true assume 0 != main_~tmp~15;havoc setup_#t~nondet83, setup_#t~nondet85, setup_#t~nondet87, 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; 125#L1542true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 98#L1548-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string82.base, #t~string82.offset;havoc setup_#t~nondet83;~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; 145#L1542-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 88#L1548-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string84.base, #t~string84.offset;havoc setup_#t~nondet85;~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; 155#L1542-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 66#L1548-8true setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string86.base, #t~string86.offset;havoc setup_#t~nondet87; 107#L2460true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 116#L1940-1true [2021-10-28 09:54:37,076 INFO L793 eck$LassoCheckResult]: Loop: 116#L1940-1true assume !false; 35#L1813true assume test_~splverifierCounter~0 < 4; 31#L1814true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 149#L1820true assume 0 == test_~op1~0;test_~tmp___9~0 := test_#t~nondet26;havoc test_#t~nondet26; 96#L1824true assume 0 != test_~tmp___9~0;test_~op1~0 := 1; 116#L1940-1true [2021-10-28 09:54:37,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:37,084 INFO L85 PathProgramCache]: Analyzing trace with hash -580026000, now seen corresponding path program 1 times [2021-10-28 09:54:37,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:37,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783639182] [2021-10-28 09:54:37,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:37,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:37,523 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 09:54:37,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:37,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783639182] [2021-10-28 09:54:37,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783639182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:37,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:37,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:54:37,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723680274] [2021-10-28 09:54:37,539 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:37,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:37,541 INFO L85 PathProgramCache]: Analyzing trace with hash 103192148, now seen corresponding path program 1 times [2021-10-28 09:54:37,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:37,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387209859] [2021-10-28 09:54:37,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:37,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:37,577 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:37,668 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:37,750 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:37,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:37,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:37,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:37,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:37,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:37,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:37,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product10.cil.c_Iteration1_Loop [2021-10-28 09:54:37,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:37,752 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:37,775 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 09:54:37,788 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 09:54:37,802 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 09:54:37,892 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:37,893 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:37,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,905 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:37,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:37,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:54:37,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:37,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:54:37,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:37,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:38,006 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:38,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:38,054 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:38,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:38,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:38,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:38,054 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:38,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:38,055 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:38,055 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:38,055 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product10.cil.c_Iteration1_Loop [2021-10-28 09:54:38,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:38,055 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:38,056 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 09:54:38,064 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 09:54:38,074 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 09:54:38,155 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:38,162 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:38,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:38,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:38,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:38,180 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 09:54:38,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:54:38,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:38,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:38,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:38,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:38,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:38,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:38,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:38,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:54:38,214 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:54:38,215 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:54:38,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:38,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:38,218 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:38,250 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:54:38,250 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:54:38,251 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:54:38,252 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 09:54:38,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:54:38,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-28 09:54:38,305 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:54:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:38,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:54:38,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:38,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:54:38,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:38,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:38,770 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 09:54:38,789 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 09:54:38,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 160 states, 159 states have (on average 1.6415094339622642) internal successors, (261), 159 states have internal predecessors, (261), 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 09:54:39,042 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 160 states, 159 states have (on average 1.6415094339622642) internal successors, (261), 159 states have internal predecessors, (261), 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 700 states and 1129 transitions. Complement of second has 7 states. [2021-10-28 09:54:39,048 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 09:54:39,050 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 09:54:39,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 667 transitions. [2021-10-28 09:54:39,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 667 transitions. Stem has 12 letters. Loop has 5 letters. [2021-10-28 09:54:39,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:39,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 667 transitions. Stem has 17 letters. Loop has 5 letters. [2021-10-28 09:54:39,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:39,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 667 transitions. Stem has 12 letters. Loop has 10 letters. [2021-10-28 09:54:39,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:39,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 700 states and 1129 transitions. [2021-10-28 09:54:39,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-10-28 09:54:39,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 700 states to 151 states and 263 transitions. [2021-10-28 09:54:39,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2021-10-28 09:54:39,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2021-10-28 09:54:39,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 263 transitions. [2021-10-28 09:54:39,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:54:39,109 INFO L681 BuchiCegarLoop]: Abstraction has 151 states and 263 transitions. [2021-10-28 09:54:39,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 263 transitions. [2021-10-28 09:54:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 86. [2021-10-28 09:54:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.7209302325581395) internal successors, (148), 85 states have internal predecessors, (148), 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 09:54:39,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 148 transitions. [2021-10-28 09:54:39,146 INFO L704 BuchiCegarLoop]: Abstraction has 86 states and 148 transitions. [2021-10-28 09:54:39,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:39,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:54:39,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:54:39,151 INFO L87 Difference]: Start difference. First operand 86 states and 148 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 09:54:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:39,186 INFO L93 Difference]: Finished difference Result 156 states and 268 transitions. [2021-10-28 09:54:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:54:39,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 268 transitions. [2021-10-28 09:54:39,200 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2021-10-28 09:54:39,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 156 states and 268 transitions. [2021-10-28 09:54:39,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 88 [2021-10-28 09:54:39,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2021-10-28 09:54:39,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 268 transitions. [2021-10-28 09:54:39,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:54:39,217 INFO L681 BuchiCegarLoop]: Abstraction has 156 states and 268 transitions. [2021-10-28 09:54:39,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 268 transitions. [2021-10-28 09:54:39,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 85. [2021-10-28 09:54:39,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.6941176470588235) internal successors, (144), 84 states have internal predecessors, (144), 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 09:54:39,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 144 transitions. [2021-10-28 09:54:39,226 INFO L704 BuchiCegarLoop]: Abstraction has 85 states and 144 transitions. [2021-10-28 09:54:39,227 INFO L587 BuchiCegarLoop]: Abstraction has 85 states and 144 transitions. [2021-10-28 09:54:39,227 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:54:39,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 144 transitions. [2021-10-28 09:54:39,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-28 09:54:39,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:39,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:39,230 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:39,230 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:39,247 INFO L791 eck$LassoCheckResult]: Stem: 1263#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(29);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(10);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(16);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(22);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(20);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(44);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(44);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(9);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(11);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(10);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(12);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(10);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(18);~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 1256#L-1 havoc main_#res;havoc main_#t~nondet88, main_#t~ret89, main_~retValue_acc~36, main_~tmp~15;main_~retValue_acc~36 := main_#t~nondet88;havoc main_#t~nondet88;havoc main_~tmp~15; 1257#L2590 havoc valid_product_#res;havoc valid_product_~retValue_acc~41;havoc valid_product_~retValue_acc~41;valid_product_~retValue_acc~41 := 1;valid_product_#res := valid_product_~retValue_acc~41; 1264#L2598 main_#t~ret89 := valid_product_#res;main_~tmp~15 := main_#t~ret89;havoc main_#t~ret89; 1180#L2473 assume 0 != main_~tmp~15;havoc setup_#t~nondet83, setup_#t~nondet85, setup_#t~nondet87, 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; 1181#L1542 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 1217#L1548-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string82.base, #t~string82.offset;havoc setup_#t~nondet83;~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; 1218#L1542-2 assume !(1 == setClientId_~handle); 1255#L1545-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 1182#L1548-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string84.base, #t~string84.offset;havoc setup_#t~nondet85;~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; 1183#L1542-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 1261#L1548-8 setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string86.base, #t~string86.offset;havoc setup_#t~nondet87; 1231#L2460 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 1232#L1940-1 assume !false; 1243#L1813 [2021-10-28 09:54:39,247 INFO L793 eck$LassoCheckResult]: Loop: 1243#L1813 assume test_~splverifierCounter~0 < 4; 1239#L1814 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 1240#L1820 assume !(0 == test_~op1~0); 1211#L1830 assume !(0 == test_~op2~0); 1192#L1844 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet28;havoc test_#t~nondet28; 1233#L1849 assume 0 != test_~tmp___7~0;test_~op3~0 := 1; 1197#L1940-1 assume !false; 1243#L1813 [2021-10-28 09:54:39,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:39,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1897365039, now seen corresponding path program 1 times [2021-10-28 09:54:39,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:39,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104939755] [2021-10-28 09:54:39,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:39,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:39,418 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 09:54:39,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:39,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104939755] [2021-10-28 09:54:39,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104939755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:39,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:39,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:54:39,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161004148] [2021-10-28 09:54:39,420 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:39,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:39,421 INFO L85 PathProgramCache]: Analyzing trace with hash -235666265, now seen corresponding path program 1 times [2021-10-28 09:54:39,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:39,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258622733] [2021-10-28 09:54:39,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:39,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:39,433 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:39,460 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:39,548 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:39,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:39,549 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:39,549 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:39,549 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:39,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:39,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:39,550 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:39,550 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product10.cil.c_Iteration2_Loop [2021-10-28 09:54:39,550 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:39,550 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:39,552 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 09:54:39,558 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 09:54:39,561 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 09:54:39,570 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 09:54:39,578 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 09:54:39,666 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:39,666 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:39,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:39,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:39,670 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:39,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:54:39,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:39,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:39,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:54:39,709 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~tmp___7~0=-2, ULTIMATE.start_test_#t~nondet28=-2} Honda state: {ULTIMATE.start_test_~tmp___7~0=-2, ULTIMATE.start_test_#t~nondet28=-2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:54:39,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 09:54:39,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:39,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:39,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:39,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:54:39,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:39,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:39,782 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:54:39,782 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 09:54:39,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:39,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:39,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:39,827 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:39,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:39,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:39,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:54:39,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:39,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:39,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:39,896 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:39,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:39,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:39,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:54:39,972 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:39,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:39,982 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:39,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:39,983 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:39,983 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:39,983 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:39,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:39,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:39,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:39,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product10.cil.c_Iteration2_Loop [2021-10-28 09:54:39,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:39,984 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:39,985 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 09:54:39,998 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 09:54:40,002 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 09:54:40,009 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 09:54:40,013 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 09:54:40,143 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:40,143 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:40,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:40,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:40,148 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:40,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:54:40,151 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 09:54:40,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:40,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:40,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:40,163 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:54:40,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:40,166 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:40,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:40,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:40,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:40,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:40,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:40,232 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:40,243 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 09:54:40,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:40,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:40,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:40,255 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:54:40,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:40,257 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:40,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:40,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:54:40,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:40,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:40,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:40,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:40,320 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:40,330 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 09:54:40,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:40,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:40,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:40,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:40,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:40,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:40,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:40,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:54:40,357 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:54:40,361 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:54:40,361 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:54:40,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:40,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:40,363 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:40,370 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:54:40,370 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:54:40,370 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:54:40,370 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 09:54:40,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:54:40,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:40,412 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:54:40,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:40,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:54:40,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:40,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:54:40,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:40,825 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 09:54:40,826 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 09:54:40,827 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 144 transitions. cyclomatic complexity: 61 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 09:54:40,859 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 144 transitions. cyclomatic complexity: 61. 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 155 states and 268 transitions. Complement of second has 6 states. [2021-10-28 09:54:40,860 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 09:54:40,860 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 09:54:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-10-28 09:54:40,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 14 letters. Loop has 7 letters. [2021-10-28 09:54:40,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:40,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 21 letters. Loop has 7 letters. [2021-10-28 09:54:40,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:40,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 14 letters. Loop has 14 letters. [2021-10-28 09:54:40,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:40,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 268 transitions. [2021-10-28 09:54:40,875 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:54:40,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 0 states and 0 transitions. [2021-10-28 09:54:40,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:54:40,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:54:40,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:54:40,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:40,876 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:54:40,876 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:54:40,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:40,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:54:40,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:54:40,883 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 09:54:40,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:40,884 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 09:54:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:54:40,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 09:54:40,884 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:54:40,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:54:40,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:54:40,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:54:40,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:54:40,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:40,885 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:54:40,885 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:54:40,886 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:54:40,886 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:54:40,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:54:40,886 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:54:40,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:54:40,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:54:40 BoogieIcfgContainer [2021-10-28 09:54:40,896 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:54:40,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:54:40,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:54:40,897 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:54:40,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:36" (3/4) ... [2021-10-28 09:54:40,902 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:54:40,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:54:40,912 INFO L168 Benchmark]: Toolchain (without parser) took 7382.83 ms. Allocated memory was 100.7 MB in the beginning and 165.7 MB in the end (delta: 65.0 MB). Free memory was 66.3 MB in the beginning and 99.4 MB in the end (delta: -33.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:40,912 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 100.7 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:40,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1143.19 ms. Allocated memory is still 100.7 MB. Free memory was 66.1 MB in the beginning and 53.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:40,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 174.73 ms. Allocated memory is still 100.7 MB. Free memory was 53.9 MB in the beginning and 48.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:40,915 INFO L168 Benchmark]: Boogie Preprocessor took 123.91 ms. Allocated memory is still 100.7 MB. Free memory was 48.6 MB in the beginning and 44.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:40,916 INFO L168 Benchmark]: RCFGBuilder took 1878.69 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 44.8 MB in the beginning and 99.1 MB in the end (delta: -54.3 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:40,920 INFO L168 Benchmark]: BuchiAutomizer took 4049.47 ms. Allocated memory was 132.1 MB in the beginning and 165.7 MB in the end (delta: 33.6 MB). Free memory was 99.1 MB in the beginning and 99.4 MB in the end (delta: -282.6 kB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:40,920 INFO L168 Benchmark]: Witness Printer took 5.11 ms. Allocated memory is still 165.7 MB. Free memory is still 99.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:40,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 100.7 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1143.19 ms. Allocated memory is still 100.7 MB. Free memory was 66.1 MB in the beginning and 53.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 174.73 ms. Allocated memory is still 100.7 MB. Free memory was 53.9 MB in the beginning and 48.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 123.91 ms. Allocated memory is still 100.7 MB. Free memory was 48.6 MB in the beginning and 44.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1878.69 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 44.8 MB in the beginning and 99.1 MB in the end (delta: -54.3 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4049.47 ms. Allocated memory was 132.1 MB in the beginning and 165.7 MB in the end (delta: 33.6 MB). Free memory was 99.1 MB in the beginning and 99.4 MB in the end (delta: -282.6 kB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.11 ms. Allocated memory is still 165.7 MB. Free memory is still 99.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op1 + 1 and consists of 5 locations. One deterministic module has affine ranking function 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 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 136 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 85 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 706 SDtfs, 628 SDslu, 855 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: 37ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:54:40,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:41,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d73a60-9f3c-4e70-92ff-ee7c933db1db/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...