./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R --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 f422b02f04909f595cd81c18f65f163bde7189dd9d2c25d22c48d8d4d89787b5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:48:51,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:48:51,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:48:51,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:48:51,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:48:51,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:48:51,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:48:51,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:48:51,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:48:51,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:48:51,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:48:51,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:48:51,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:48:51,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:48:51,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:48:51,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:48:51,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:48:51,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:48:51,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:48:51,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:48:51,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:48:51,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:48:51,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:48:51,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:48:51,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:48:51,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:48:51,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:48:51,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:48:51,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:48:51,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:48:51,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:48:51,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:48:51,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:48:51,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:48:51,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:48:51,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:48:51,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:48:51,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:48:51,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:48:51,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:48:51,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:48:51,907 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-25 15:48:51,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:48:51,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:48:51,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:48:51,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:48:51,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:48:51,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:48:51,949 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:48:51,949 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 15:48:51,950 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 15:48:51,950 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 15:48:51,951 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 15:48:51,952 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 15:48:51,952 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 15:48:51,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:48:51,952 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:48:51,953 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:48:51,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:48:51,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:48:51,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:48:51,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 15:48:51,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 15:48:51,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 15:48:51,954 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:48:51,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:48:51,955 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 15:48:51,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:48:51,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 15:48:51,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:48:51,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:48:51,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:48:51,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:48:51,959 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 15:48:51,959 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_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f422b02f04909f595cd81c18f65f163bde7189dd9d2c25d22c48d8d4d89787b5 [2022-11-25 15:48:52,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:48:52,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:48:52,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:48:52,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:48:52,369 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:48:52,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2022-11-25 15:48:55,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:48:56,148 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:48:56,148 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2022-11-25 15:48:56,171 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/data/48014c5d0/b6cac64803b243f68f27cc87390a94c3/FLAG75822d2f6 [2022-11-25 15:48:56,202 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/data/48014c5d0/b6cac64803b243f68f27cc87390a94c3 [2022-11-25 15:48:56,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:48:56,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:48:56,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:48:56,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:48:56,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:48:56,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:48:56" (1/1) ... [2022-11-25 15:48:56,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11aebfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:56, skipping insertion in model container [2022-11-25 15:48:56,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:48:56" (1/1) ... [2022-11-25 15:48:56,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:48:56,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:48:56,755 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,758 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,775 WARN L237 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_f3297786-fb9d-4c7d-a85c-1e71401bec22/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2022-11-25 15:48:56,878 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,882 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,883 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,885 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,895 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,896 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,899 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:56,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:48:56,926 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:48:57,005 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,006 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,020 WARN L237 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_f3297786-fb9d-4c7d-a85c-1e71401bec22/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2022-11-25 15:48:57,104 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,121 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,122 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,123 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,128 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,130 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,131 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:48:57,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:48:57,231 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:48:57,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57 WrapperNode [2022-11-25 15:48:57,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:48:57,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:48:57,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:48:57,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:48:57,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,401 INFO L138 Inliner]: procedures = 113, calls = 154, calls flagged for inlining = 77, calls inlined = 202, statements flattened = 2725 [2022-11-25 15:48:57,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:48:57,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:48:57,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:48:57,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:48:57,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,484 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:48:57,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:48:57,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:48:57,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:48:57,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (1/1) ... [2022-11-25 15:48:57,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:48:57,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:48:57,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:48:57,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 15:48:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-25 15:48:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:48:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:48:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:48:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:48:57,925 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:48:57,928 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:48:59,498 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:48:59,509 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:48:59,510 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:48:59,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:48:59 BoogieIcfgContainer [2022-11-25 15:48:59,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:48:59,514 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 15:48:59,514 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 15:48:59,518 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 15:48:59,519 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:48:59,519 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 03:48:56" (1/3) ... [2022-11-25 15:48:59,520 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71a741fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 03:48:59, skipping insertion in model container [2022-11-25 15:48:59,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:48:59,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:57" (2/3) ... [2022-11-25 15:48:59,521 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71a741fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 03:48:59, skipping insertion in model container [2022-11-25 15:48:59,521 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:48:59,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:48:59" (3/3) ... [2022-11-25 15:48:59,522 INFO L332 chiAutomizerObserver]: Analyzing ICFG email_spec11_product36.cil.c [2022-11-25 15:48:59,617 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 15:48:59,617 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 15:48:59,617 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 15:48:59,617 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 15:48:59,618 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 15:48:59,618 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 15:48:59,618 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 15:48:59,618 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 15:48:59,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 534 states, 533 states have (on average 1.602251407129456) internal successors, (854), 533 states have internal predecessors, (854), 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) [2022-11-25 15:48:59,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2022-11-25 15:48:59,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:48:59,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:48:59,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:48:59,703 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-25 15:48:59,703 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 15:48:59,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 534 states, 533 states have (on average 1.602251407129456) internal successors, (854), 533 states have internal predecessors, (854), 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) [2022-11-25 15:48:59,718 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2022-11-25 15:48:59,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:48:59,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:48:59,727 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:48:59,727 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-25 15:48:59,733 INFO L748 eck$LassoCheckResult]: Stem: 522#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(29, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(44, 16);call #Ultimate.allocInit(44, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(11, 20);call #Ultimate.allocInit(4, 21);call write~init~int(37, 21, 0, 1);call write~init~int(115, 21, 1, 1);call write~init~int(10, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(10, 22);call #Ultimate.allocInit(34, 23);call #Ultimate.allocInit(30, 24);call #Ultimate.allocInit(16, 25);call #Ultimate.allocInit(22, 26);call #Ultimate.allocInit(21, 27);call #Ultimate.allocInit(20, 28);call #Ultimate.allocInit(10, 29);call #Ultimate.allocInit(12, 30);call #Ultimate.allocInit(10, 31);call #Ultimate.allocInit(18, 32);~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0; 440#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet36#1, main_#t~ret37#1, main_~retValue_acc~16#1, main_~tmp~4#1;main_~retValue_acc~16#1 := main_#t~nondet36#1;havoc main_#t~nondet36#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 419#L863true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 125#L856true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~15#1;havoc valid_product_~retValue_acc~15#1;valid_product_~retValue_acc~15#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~15#1; 499#L871true main_#t~ret37#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret37#1;havoc main_#t~ret37#1; 364#L1000true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true;havoc setup_#t~nondet33#1, setup_#t~nondet34#1, setup_#t~nondet35#1, setup_~__cil_tmp1~0#1.base, setup_~__cil_tmp1~0#1.offset, setup_~__cil_tmp2~0#1.base, setup_~__cil_tmp2~0#1.offset, setup_~__cil_tmp3~2#1.base, setup_~__cil_tmp3~2#1.offset;havoc setup_~__cil_tmp1~0#1.base, setup_~__cil_tmp1~0#1.offset;havoc setup_~__cil_tmp2~0#1.base, setup_~__cil_tmp2~0#1.offset;havoc setup_~__cil_tmp3~2#1.base, setup_~__cil_tmp3~2#1.offset;~bob~0 := 1;assume { :begin_inline_setup_bob } true;setup_bob_#in~bob___0#1 := ~bob~0;havoc setup_bob_~bob___0#1;setup_bob_~bob___0#1 := setup_bob_#in~bob___0#1;assume { :begin_inline_setClientId } true;setClientId_#in~handle#1, setClientId_#in~value#1 := setup_bob_~bob___0#1, setup_bob_~bob___0#1;havoc setClientId_~handle#1, setClientId_~value#1;setClientId_~handle#1 := setClientId_#in~handle#1;setClientId_~value#1 := setClientId_#in~value#1; 51#L2309true assume 1 == setClientId_~handle#1;~__ste_client_idCounter0~0 := setClientId_~value#1; 326#L2315-2true assume { :end_inline_setClientId } true; 278#L910true assume { :end_inline_setup_bob } true;setup_~__cil_tmp1~0#1.base, setup_~__cil_tmp1~0#1.offset := 18, 0;havoc setup_#t~nondet33#1;~rjh~0 := 2;assume { :begin_inline_setup_rjh } true;setup_rjh_#in~rjh___0#1 := ~rjh~0;havoc setup_rjh_~rjh___0#1;setup_rjh_~rjh___0#1 := setup_rjh_#in~rjh___0#1;assume { :begin_inline_setClientId } true;setClientId_#in~handle#1, setClientId_#in~value#1 := setup_rjh_~rjh___0#1, setup_rjh_~rjh___0#1;havoc setClientId_~handle#1, setClientId_~value#1;setClientId_~handle#1 := setClientId_#in~handle#1;setClientId_~value#1 := setClientId_#in~value#1; 533#L2309-2true assume 1 == setClientId_~handle#1;~__ste_client_idCounter0~0 := setClientId_~value#1; 167#L2315-5true assume { :end_inline_setClientId } true; 387#L920true assume { :end_inline_setup_rjh } true;setup_~__cil_tmp2~0#1.base, setup_~__cil_tmp2~0#1.offset := 19, 0;havoc setup_#t~nondet34#1;~chuck~0 := 3;assume { :begin_inline_setup_chuck } true;setup_chuck_#in~chuck___0#1 := ~chuck~0;havoc setup_chuck_~chuck___0#1;setup_chuck_~chuck___0#1 := setup_chuck_#in~chuck___0#1;assume { :begin_inline_setClientId } true;setClientId_#in~handle#1, setClientId_#in~value#1 := setup_chuck_~chuck___0#1, setup_chuck_~chuck___0#1;havoc setClientId_~handle#1, setClientId_~value#1;setClientId_~handle#1 := setClientId_#in~handle#1;setClientId_~value#1 := setClientId_#in~value#1; 485#L2309-4true assume 1 == setClientId_~handle#1;~__ste_client_idCounter0~0 := setClientId_~value#1; 118#L2315-8true assume { :end_inline_setClientId } true; 321#L930true assume { :end_inline_setup_chuck } true;setup_~__cil_tmp3~2#1.base, setup_~__cil_tmp3~2#1.offset := 20, 0;havoc setup_#t~nondet35#1; 356#L987true assume { :end_inline_setup } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~op1~0#1, test_~op2~0#1, test_~op3~0#1, test_~op4~0#1, test_~op5~0#1, test_~op6~0#1, test_~op7~0#1, test_~op8~0#1, test_~op9~0#1, test_~op10~0#1, test_~op11~0#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1, test_~tmp___3~0#1, test_~tmp___4~0#1, test_~tmp___5~0#1, test_~tmp___6~0#1, test_~tmp___7~0#1, test_~tmp___8~0#1, test_~tmp___9~0#1;havoc test_~op1~0#1;havoc test_~op2~0#1;havoc test_~op3~0#1;havoc test_~op4~0#1;havoc test_~op5~0#1;havoc test_~op6~0#1;havoc test_~op7~0#1;havoc test_~op8~0#1;havoc test_~op9~0#1;havoc test_~op10~0#1;havoc test_~op11~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;havoc test_~tmp___3~0#1;havoc test_~tmp___4~0#1;havoc test_~tmp___5~0#1;havoc test_~tmp___6~0#1;havoc test_~tmp___7~0#1;havoc test_~tmp___8~0#1;havoc test_~tmp___9~0#1;test_~op1~0#1 := 0;test_~op2~0#1 := 0;test_~op3~0#1 := 0;test_~op4~0#1 := 0;test_~op5~0#1 := 0;test_~op6~0#1 := 0;test_~op7~0#1 := 0;test_~op8~0#1 := 0;test_~op9~0#1 := 0;test_~op10~0#1 := 0;test_~op11~0#1 := 0;test_~splverifierCounter~0#1 := 0; 418#L1215-1true [2022-11-25 15:48:59,733 INFO L750 eck$LassoCheckResult]: Loop: 418#L1215-1true assume !false; 301#L1085true assume test_~splverifierCounter~0#1 < 4; 88#L1086true test_~splverifierCounter~0#1 := 1 + test_~splverifierCounter~0#1; 425#L1092true assume 0 == test_~op1~0#1;test_~tmp___9~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 124#L1096true assume 0 != test_~tmp___9~0#1;test_~op1~0#1 := 1; 418#L1215-1true [2022-11-25 15:48:59,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:48:59,740 INFO L85 PathProgramCache]: Analyzing trace with hash -546462003, now seen corresponding path program 1 times [2022-11-25 15:48:59,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:48:59,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794242323] [2022-11-25 15:48:59,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:48:59,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:48:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:49:00,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:49:00,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794242323] [2022-11-25 15:49:00,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794242323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:49:00,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:49:00,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:49:00,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523246675] [2022-11-25 15:49:00,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:49:00,248 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-25 15:49:00,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:49:00,251 INFO L85 PathProgramCache]: Analyzing trace with hash 107009368, now seen corresponding path program 1 times [2022-11-25 15:49:00,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:49:00,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372985805] [2022-11-25 15:49:00,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:49:00,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:49:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:49:00,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:49:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:49:00,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:49:00,386 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:49:00,387 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:49:00,387 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:49:00,387 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:49:00,388 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:49:00,388 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:49:00,388 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:49:00,389 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:49:00,389 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product36.cil.c_Iteration1_Loop [2022-11-25 15:49:00,389 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:49:00,390 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:49:00,411 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:49:00,448 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:49:00,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:49:00,564 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:49:00,564 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:49:00,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:49:00,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:49:00,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:49:00,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 15:49:00,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:49:00,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:49:00,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-25 15:49:00,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:49:00,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:49:00,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:49:00,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:49:00,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:49:00,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 15:49:00,797 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:49:00,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:49:00,809 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:49:00,809 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:49:00,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:49:00,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:49:00,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:49:00,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:49:00,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:49:00,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:49:00,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec11_product36.cil.c_Iteration1_Loop [2022-11-25 15:49:00,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:49:00,811 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:49:00,812 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:49:00,828 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:49:00,836 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:49:00,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:49:00,911 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:49:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:49:00,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:49:00,914 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:49:00,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 15:49:00,919 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 [2022-11-25 15:49:00,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:49:00,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:49:00,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:49:00,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:49:00,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:49:00,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:49:00,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:49:00,939 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:49:00,948 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 15:49:00,949 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 15:49:00,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:49:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:49:00,982 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:49:00,984 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:49:00,984 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:49:00,985 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:49:00,985 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0#1) = -2*ULTIMATE.start_test_~splverifierCounter~0#1 + 7 Supporting invariants [] [2022-11-25 15:49:00,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 15:49:00,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:49:00,998 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:49:01,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:49:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:01,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:49:01,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:49:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:01,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:49:01,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:49:01,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:49:01,360 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-25 15:49:01,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 534 states, 533 states have (on average 1.602251407129456) internal successors, (854), 533 states have internal predecessors, (854), 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 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2022-11-25 15:49:01,596 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 534 states, 533 states have (on average 1.602251407129456) internal successors, (854), 533 states have internal predecessors, (854), 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 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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 1473 states and 2339 transitions. Complement of second has 7 states. [2022-11-25 15:49:01,599 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 [2022-11-25 15:49:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2022-11-25 15:49:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1527 transitions. [2022-11-25 15:49:01,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1527 transitions. Stem has 16 letters. Loop has 5 letters. [2022-11-25 15:49:01,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:49:01,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1527 transitions. Stem has 21 letters. Loop has 5 letters. [2022-11-25 15:49:01,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:49:01,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1527 transitions. Stem has 16 letters. Loop has 10 letters. [2022-11-25 15:49:01,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:49:01,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1473 states and 2339 transitions. [2022-11-25 15:49:01,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:49:01,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 15:49:01,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1473 states to 0 states and 0 transitions. [2022-11-25 15:49:01,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 15:49:01,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 15:49:01,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 15:49:01,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:49:01,661 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:49:01,661 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:49:01,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:49:01,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:49:01,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:49:01,667 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-25 15:49:01,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:49:01,671 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-25 15:49:01,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-25 15:49:01,671 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 15:49:01,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 15:49:01,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 15:49:01,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 15:49:01,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 15:49:01,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:49:01,672 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:49:01,672 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:49:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:49:01,673 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:49:01,673 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 15:49:01,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:49:01,674 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 15:49:01,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-25 15:49:01,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 03:49:01 BoogieIcfgContainer [2022-11-25 15:49:01,682 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 15:49:01,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:49:01,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:49:01,684 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:49:01,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:48:59" (3/4) ... [2022-11-25 15:49:01,687 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:49:01,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:49:01,689 INFO L158 Benchmark]: Toolchain (without parser) took 5481.90ms. Allocated memory was 176.2MB in the beginning and 224.4MB in the end (delta: 48.2MB). Free memory was 130.0MB in the beginning and 171.5MB in the end (delta: -41.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-11-25 15:49:01,689 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:49:01,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1024.33ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 141.0MB in the end (delta: -11.0MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2022-11-25 15:49:01,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.10ms. Allocated memory is still 176.2MB. Free memory was 141.0MB in the beginning and 130.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:49:01,691 INFO L158 Benchmark]: Boogie Preprocessor took 102.55ms. Allocated memory is still 176.2MB. Free memory was 130.6MB in the beginning and 123.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 15:49:01,692 INFO L158 Benchmark]: RCFGBuilder took 2007.29ms. Allocated memory is still 176.2MB. Free memory was 123.4MB in the beginning and 100.0MB in the end (delta: 23.3MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2022-11-25 15:49:01,692 INFO L158 Benchmark]: BuchiAutomizer took 2168.79ms. Allocated memory was 176.2MB in the beginning and 224.4MB in the end (delta: 48.2MB). Free memory was 100.0MB in the beginning and 172.6MB in the end (delta: -72.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:49:01,693 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 224.4MB. Free memory was 172.6MB in the beginning and 171.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:49:01,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1024.33ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 141.0MB in the end (delta: -11.0MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 168.10ms. Allocated memory is still 176.2MB. Free memory was 141.0MB in the beginning and 130.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.55ms. Allocated memory is still 176.2MB. Free memory was 130.6MB in the beginning and 123.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2007.29ms. Allocated memory is still 176.2MB. Free memory was 123.4MB in the beginning and 100.0MB in the end (delta: 23.3MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2168.79ms. Allocated memory was 176.2MB in the beginning and 224.4MB in the end (delta: 48.2MB). Free memory was 100.0MB in the beginning and 172.6MB in the end (delta: -72.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 224.4MB. Free memory was 172.6MB in the beginning and 171.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * splverifierCounter + 7 and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 841 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 840 mSDsluCounter, 2450 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1610 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 840 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 72ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-25 15:49:01,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3297786-fb9d-4c7d-a85c-1e71401bec22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE