./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d732923830fb3a71ab6990fcf85b09499ea996afd0bf98e12e19d094dda2a9f7 --- 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-2329fc7 [2022-12-14 11:58:00,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:58:00,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:58:00,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:58:00,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:58:00,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:58:00,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:58:00,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:58:00,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:58:00,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:58:00,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:58:00,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:58:00,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:58:00,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:58:00,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:58:00,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:58:00,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:58:00,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:58:00,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:58:00,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:58:00,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:58:00,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:58:00,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:58:00,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:58:00,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:58:00,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:58:00,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:58:00,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:58:00,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:58:00,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:58:00,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:58:00,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:58:00,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:58:00,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:58:00,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:58:00,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:58:00,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:58:00,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:58:00,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:58:00,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:58:00,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:58:00,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:58:00,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:58:00,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:58:00,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:58:00,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:58:00,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:58:00,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:58:00,543 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:58:00,543 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:58:00,544 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:58:00,544 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:58:00,544 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:58:00,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:58:00,544 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:58:00,544 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:58:00,544 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:58:00,544 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:58:00,544 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:58:00,545 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:58:00,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:58:00,545 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:58:00,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:58:00,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:58:00,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:58:00,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:58:00,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:58:00,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:58:00,546 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:58:00,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:58:00,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:58:00,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:58:00,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:58:00,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:58:00,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:58:00,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:58:00,547 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:58:00,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:58:00,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:58:00,547 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:58:00,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:58:00,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:58:00,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:58:00,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d732923830fb3a71ab6990fcf85b09499ea996afd0bf98e12e19d094dda2a9f7 [2022-12-14 11:58:00,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:58:00,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:58:00,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:58:00,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:58:00,760 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:58:00,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c [2022-12-14 11:58:03,309 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:58:03,525 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:58:03,526 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c [2022-12-14 11:58:03,538 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/data/8f503d34e/50be6feab0374efea6e4fef2aafc15ea/FLAG91058bcef [2022-12-14 11:58:03,888 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/data/8f503d34e/50be6feab0374efea6e4fef2aafc15ea [2022-12-14 11:58:03,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:58:03,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:58:03,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:58:03,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:58:03,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:58:03,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:58:03" (1/1) ... [2022-12-14 11:58:03,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ea106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:03, skipping insertion in model container [2022-12-14 11:58:03,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:58:03" (1/1) ... [2022-12-14 11:58:03,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:58:03,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:58:04,102 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,210 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_d7d19351-e258-4a96-9370-d4a2acb0a55a/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c[28349,28362] [2022-12-14 11:58:04,250 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,251 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,254 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,284 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,289 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,289 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,291 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,300 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,302 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:58:04,351 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:58:04,364 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,389 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_d7d19351-e258-4a96-9370-d4a2acb0a55a/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c[28349,28362] [2022-12-14 11:58:04,391 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,392 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,393 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,397 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,398 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,398 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,399 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,403 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,404 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:58:04,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:58:04,442 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:58:04,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04 WrapperNode [2022-12-14 11:58:04,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:58:04,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:58:04,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:58:04,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:58:04,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,496 INFO L138 Inliner]: procedures = 133, calls = 227, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1124 [2022-12-14 11:58:04,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:58:04,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:58:04,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:58:04,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:58:04,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,528 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:58:04,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:58:04,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:58:04,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:58:04,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (1/1) ... [2022-12-14 11:58:04,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:58:04,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:58:04,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:58:04,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:58:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 11:58:04,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 11:58:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 11:58:04,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 11:58:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 11:58:04,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 11:58:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 11:58:04,618 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 11:58:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 11:58:04,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 11:58:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 11:58:04,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 11:58:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 11:58:04,618 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 11:58:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 11:58:04,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 11:58:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 11:58:04,619 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 11:58:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 11:58:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 11:58:04,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 11:58:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 11:58:04,619 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 11:58:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 11:58:04,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 11:58:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:58:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 11:58:04,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 11:58:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 11:58:04,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 11:58:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 11:58:04,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 11:58:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 11:58:04,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 11:58:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 11:58:04,620 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 11:58:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 11:58:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 11:58:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 11:58:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 11:58:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 11:58:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 11:58:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:58:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 11:58:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 11:58:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 11:58:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 11:58:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:58:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:58:04,771 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:58:04,773 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:58:05,337 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:58:05,695 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:58:05,695 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:58:05,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:58:05 BoogieIcfgContainer [2022-12-14 11:58:05,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:58:05,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:58:05,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:58:05,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:58:05,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:58:03" (1/3) ... [2022-12-14 11:58:05,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697b05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:58:05, skipping insertion in model container [2022-12-14 11:58:05,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:58:04" (2/3) ... [2022-12-14 11:58:05,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697b05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:58:05, skipping insertion in model container [2022-12-14 11:58:05,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:58:05" (3/3) ... [2022-12-14 11:58:05,704 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product27.cil.c [2022-12-14 11:58:05,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:58:05,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:58:05,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:58:05,770 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e773af2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:58:05,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:58:05,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 11:58:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 11:58:05,785 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:58:05,786 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:58:05,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:58:05,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:58:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2019954724, now seen corresponding path program 1 times [2022-12-14 11:58:05,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:58:05,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633948456] [2022-12-14 11:58:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:58:05,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:58:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:58:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:06,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:58:06,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633948456] [2022-12-14 11:58:06,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633948456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:58:06,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:58:06,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:58:06,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632248208] [2022-12-14 11:58:06,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:58:06,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:58:06,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:58:06,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:58:06,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:58:06,111 INFO L87 Difference]: Start difference. First operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 11:58:06,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:58:06,230 INFO L93 Difference]: Finished difference Result 290 states and 389 transitions. [2022-12-14 11:58:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:58:06,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2022-12-14 11:58:06,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:58:06,244 INFO L225 Difference]: With dead ends: 290 [2022-12-14 11:58:06,244 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 11:58:06,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:58:06,252 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:58:06,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:58:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 11:58:06,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-12-14 11:58:06,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-14 11:58:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 252 transitions. [2022-12-14 11:58:06,309 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 252 transitions. Word has length 73 [2022-12-14 11:58:06,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:58:06,310 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 252 transitions. [2022-12-14 11:58:06,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 11:58:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 252 transitions. [2022-12-14 11:58:06,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 11:58:06,316 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:58:06,317 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:58:06,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:58:06,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:58:06,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:58:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1109461456, now seen corresponding path program 1 times [2022-12-14 11:58:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:58:06,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855103511] [2022-12-14 11:58:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:58:06,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:58:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:58:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:06,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:58:06,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855103511] [2022-12-14 11:58:06,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855103511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:58:06,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:58:06,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:58:06,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418206011] [2022-12-14 11:58:06,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:58:06,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:58:06,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:58:06,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:58:06,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:58:06,487 INFO L87 Difference]: Start difference. First operand 188 states and 252 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 11:58:06,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:58:06,596 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2022-12-14 11:58:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:58:06,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2022-12-14 11:58:06,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:58:06,598 INFO L225 Difference]: With dead ends: 286 [2022-12-14 11:58:06,598 INFO L226 Difference]: Without dead ends: 190 [2022-12-14 11:58:06,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:58:06,599 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:58:06,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:58:06,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-12-14 11:58:06,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-12-14 11:58:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.275229357798165) internal successors, (139), 111 states have internal predecessors, (139), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-14 11:58:06,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 254 transitions. [2022-12-14 11:58:06,611 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 254 transitions. Word has length 74 [2022-12-14 11:58:06,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:58:06,611 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 254 transitions. [2022-12-14 11:58:06,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 11:58:06,612 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2022-12-14 11:58:06,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 11:58:06,613 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:58:06,614 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:58:06,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:58:06,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:58:06,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:58:06,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1387180017, now seen corresponding path program 1 times [2022-12-14 11:58:06,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:58:06,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231454353] [2022-12-14 11:58:06,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:58:06,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:58:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:58:06,700 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:06,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:58:06,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231454353] [2022-12-14 11:58:06,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231454353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:58:06,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:58:06,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:58:06,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465999787] [2022-12-14 11:58:06,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:58:06,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:58:06,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:58:06,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:58:06,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:58:06,703 INFO L87 Difference]: Start difference. First operand 190 states and 254 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 11:58:06,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:58:06,815 INFO L93 Difference]: Finished difference Result 415 states and 575 transitions. [2022-12-14 11:58:06,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:58:06,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 79 [2022-12-14 11:58:06,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:58:06,817 INFO L225 Difference]: With dead ends: 415 [2022-12-14 11:58:06,817 INFO L226 Difference]: Without dead ends: 243 [2022-12-14 11:58:06,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:58:06,819 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 59 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:58:06,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 440 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:58:06,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-12-14 11:58:06,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2022-12-14 11:58:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 145 states have internal predecessors, (194), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 11:58:06,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 337 transitions. [2022-12-14 11:58:06,834 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 337 transitions. Word has length 79 [2022-12-14 11:58:06,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:58:06,834 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 337 transitions. [2022-12-14 11:58:06,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 11:58:06,835 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 337 transitions. [2022-12-14 11:58:06,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 11:58:06,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:58:06,836 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:58:06,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:58:06,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:58:06,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:58:06,837 INFO L85 PathProgramCache]: Analyzing trace with hash 958511199, now seen corresponding path program 1 times [2022-12-14 11:58:06,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:58:06,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531773251] [2022-12-14 11:58:06,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:58:06,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:58:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:58:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:07,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:58:07,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531773251] [2022-12-14 11:58:07,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531773251] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:58:07,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741218927] [2022-12-14 11:58:07,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:58:07,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:58:07,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:58:07,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:58:07,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:58:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:58:07,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:58:07,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:58:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:07,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:58:07,358 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:07,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741218927] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:58:07,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [393384020] [2022-12-14 11:58:07,379 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 11:58:07,379 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:58:07,383 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:58:07,389 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:58:07,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:58:39,662 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:58:39,970 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 11:58:40,301 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 470 for LOIs [2022-12-14 11:59:10,661 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 468 for LOIs [2022-12-14 11:59:25,232 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 268 for LOIs [2022-12-14 11:59:28,124 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 250 for LOIs [2022-12-14 11:59:28,159 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-12-14 11:59:28,202 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 448 for LOIs [2022-12-14 11:59:28,507 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-12-14 11:59:29,161 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 444 for LOIs [2022-12-14 11:59:29,470 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:00:03,898 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 563 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:00:09,196 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 565 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:01:16,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [393384020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:01:16,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:01:16,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [4, 4, 4] total 54 [2022-12-14 12:01:16,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298072617] [2022-12-14 12:01:16,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:01:16,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-14 12:01:16,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:16,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-14 12:01:16,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2715, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 12:01:16,574 INFO L87 Difference]: Start difference. First operand 238 states and 337 transitions. Second operand has 49 states, 32 states have (on average 1.28125) internal successors, (41), 29 states have internal predecessors, (41), 16 states have call successors, (17), 10 states have call predecessors, (17), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-12-14 12:01:58,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:58,707 INFO L93 Difference]: Finished difference Result 632 states and 964 transitions. [2022-12-14 12:01:58,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-14 12:01:58,708 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 32 states have (on average 1.28125) internal successors, (41), 29 states have internal predecessors, (41), 16 states have call successors, (17), 10 states have call predecessors, (17), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 80 [2022-12-14 12:01:58,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:58,713 INFO L225 Difference]: With dead ends: 632 [2022-12-14 12:01:58,713 INFO L226 Difference]: Without dead ends: 412 [2022-12-14 12:01:58,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 125.4s TimeCoverageRelationStatistics Valid=202, Invalid=3580, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 12:01:58,715 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 172 mSDsluCounter, 5215 mSDsCounter, 0 mSdLazyCounter, 7479 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 5476 SdHoareTripleChecker+Invalid, 7503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 7479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:58,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 5476 Invalid, 7503 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [24 Valid, 7479 Invalid, 0 Unknown, 0 Unchecked, 23.3s Time] [2022-12-14 12:01:58,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-12-14 12:01:58,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 306. [2022-12-14 12:01:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 196 states have internal predecessors, (261), 83 states have call successors, (83), 31 states have call predecessors, (83), 29 states have return successors, (83), 78 states have call predecessors, (83), 82 states have call successors, (83) [2022-12-14 12:01:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 427 transitions. [2022-12-14 12:01:58,832 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 427 transitions. Word has length 80 [2022-12-14 12:01:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:58,833 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 427 transitions. [2022-12-14 12:01:58,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 32 states have (on average 1.28125) internal successors, (41), 29 states have internal predecessors, (41), 16 states have call successors, (17), 10 states have call predecessors, (17), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-12-14 12:01:58,833 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 427 transitions. [2022-12-14 12:01:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 12:01:58,834 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:58,835 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:58,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:01:59,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:01:59,037 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:59,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:59,038 INFO L85 PathProgramCache]: Analyzing trace with hash 257703154, now seen corresponding path program 1 times [2022-12-14 12:01:59,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:59,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657550538] [2022-12-14 12:01:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:59,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:01:59,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:59,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657550538] [2022-12-14 12:01:59,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657550538] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:01:59,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724888713] [2022-12-14 12:01:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:59,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:01:59,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:01:59,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:01:59,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:01:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:59,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:01:59,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:01:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:01:59,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:01:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:01:59,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724888713] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:01:59,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [86770675] [2022-12-14 12:01:59,429 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 12:01:59,429 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:01:59,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:01:59,430 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:01:59,430 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:02:31,091 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 12:02:31,402 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:02:31,705 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 470 for LOIs [2022-12-14 12:03:01,836 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 468 for LOIs [2022-12-14 12:03:17,206 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 268 for LOIs [2022-12-14 12:03:23,875 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 250 for LOIs [2022-12-14 12:03:23,910 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-12-14 12:03:23,952 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 448 for LOIs [2022-12-14 12:03:24,257 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-12-14 12:03:24,912 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 250 for LOIs [2022-12-14 12:03:24,955 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 455 for LOIs [2022-12-14 12:03:25,511 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:05:38,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [86770675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:05:38,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:05:38,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [4, 4, 4] total 62 [2022-12-14 12:05:38,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876753714] [2022-12-14 12:05:38,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:05:38,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-12-14 12:05:38,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:05:38,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-12-14 12:05:38,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=3584, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 12:05:38,685 INFO L87 Difference]: Start difference. First operand 306 states and 427 transitions. Second operand has 57 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 35 states have internal predecessors, (44), 17 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-12-14 12:06:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:06:20,464 INFO L93 Difference]: Finished difference Result 512 states and 734 transitions. [2022-12-14 12:06:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-14 12:06:20,465 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 35 states have internal predecessors, (44), 17 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) Word has length 85 [2022-12-14 12:06:20,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:06:20,467 INFO L225 Difference]: With dead ends: 512 [2022-12-14 12:06:20,467 INFO L226 Difference]: Without dead ends: 423 [2022-12-14 12:06:20,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 150.9s TimeCoverageRelationStatistics Valid=253, Invalid=4577, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 12:06:20,469 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 219 mSDsluCounter, 5683 mSDsCounter, 0 mSdLazyCounter, 8389 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 5937 SdHoareTripleChecker+Invalid, 8405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 8389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:06:20,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 5937 Invalid, 8405 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 8389 Invalid, 0 Unknown, 0 Unchecked, 23.3s Time] [2022-12-14 12:06:20,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-12-14 12:06:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 312. [2022-12-14 12:06:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 198 states have (on average 1.3484848484848484) internal successors, (267), 201 states have internal predecessors, (267), 83 states have call successors, (83), 32 states have call predecessors, (83), 30 states have return successors, (83), 78 states have call predecessors, (83), 82 states have call successors, (83) [2022-12-14 12:06:20,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 433 transitions. [2022-12-14 12:06:20,613 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 433 transitions. Word has length 85 [2022-12-14 12:06:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:06:20,614 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 433 transitions. [2022-12-14 12:06:20,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 35 states have internal predecessors, (44), 17 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-12-14 12:06:20,614 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 433 transitions. [2022-12-14 12:06:20,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 12:06:20,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:06:20,615 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:06:20,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:06:20,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:06:20,817 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:06:20,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:06:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash -2094854096, now seen corresponding path program 1 times [2022-12-14 12:06:20,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:06:20,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117512607] [2022-12-14 12:06:20,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:06:20,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:06:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:06:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:06:20,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:06:20,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117512607] [2022-12-14 12:06:20,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117512607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:06:20,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:06:20,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:06:20,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544508305] [2022-12-14 12:06:20,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:06:20,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:06:20,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:06:20,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:06:20,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:06:20,905 INFO L87 Difference]: Start difference. First operand 312 states and 433 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 12:06:21,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:06:21,317 INFO L93 Difference]: Finished difference Result 726 states and 1046 transitions. [2022-12-14 12:06:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:06:21,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 85 [2022-12-14 12:06:21,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:06:21,321 INFO L225 Difference]: With dead ends: 726 [2022-12-14 12:06:21,321 INFO L226 Difference]: Without dead ends: 440 [2022-12-14 12:06:21,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:06:21,322 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 57 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:06:21,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 453 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:06:21,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-12-14 12:06:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 433. [2022-12-14 12:06:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 288 states have (on average 1.4131944444444444) internal successors, (407), 291 states have internal predecessors, (407), 114 states have call successors, (114), 32 states have call predecessors, (114), 30 states have return successors, (114), 109 states have call predecessors, (114), 113 states have call successors, (114) [2022-12-14 12:06:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 635 transitions. [2022-12-14 12:06:21,634 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 635 transitions. Word has length 85 [2022-12-14 12:06:21,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:06:21,635 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 635 transitions. [2022-12-14 12:06:21,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 12:06:21,635 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 635 transitions. [2022-12-14 12:06:21,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 12:06:21,638 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:06:21,638 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:06:21,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:06:21,638 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:06:21,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:06:21,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1887496637, now seen corresponding path program 1 times [2022-12-14 12:06:21,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:06:21,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855478012] [2022-12-14 12:06:21,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:06:21,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:06:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:06:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:06:21,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:06:21,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855478012] [2022-12-14 12:06:21,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855478012] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:06:21,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549762907] [2022-12-14 12:06:21,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:06:21,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:06:21,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:06:21,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:06:21,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:06:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:06:21,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:06:21,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:06:21,993 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:06:21,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:06:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:06:22,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549762907] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:06:22,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [122038088] [2022-12-14 12:06:22,038 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 12:06:22,039 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:06:22,039 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:06:22,039 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:06:22,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:07:07,620 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 12:07:07,924 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 12:07:08,257 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:07:46,639 WARN L233 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 583 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:08:07,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [122038088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:08:07,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:08:07,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 12:08:07,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296528577] [2022-12-14 12:08:07,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:08:07,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 12:08:07,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:08:07,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 12:08:07,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 12:08:07,136 INFO L87 Difference]: Start difference. First operand 433 states and 635 transitions. Second operand has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 12:08:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:08:27,729 INFO L93 Difference]: Finished difference Result 838 states and 1271 transitions. [2022-12-14 12:08:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 12:08:27,730 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 86 [2022-12-14 12:08:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:08:27,731 INFO L225 Difference]: With dead ends: 838 [2022-12-14 12:08:27,731 INFO L226 Difference]: Without dead ends: 518 [2022-12-14 12:08:27,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 230 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 71.0s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 12:08:27,733 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 85 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:08:27,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 3428 Invalid, 2369 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-12-14 12:08:27,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-12-14 12:08:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 463. [2022-12-14 12:08:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 316 states have (on average 1.4177215189873418) internal successors, (448), 319 states have internal predecessors, (448), 115 states have call successors, (115), 33 states have call predecessors, (115), 31 states have return successors, (115), 110 states have call predecessors, (115), 114 states have call successors, (115) [2022-12-14 12:08:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 678 transitions. [2022-12-14 12:08:28,135 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 678 transitions. Word has length 86 [2022-12-14 12:08:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:08:28,135 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 678 transitions. [2022-12-14 12:08:28,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 12:08:28,136 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 678 transitions. [2022-12-14 12:08:28,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 12:08:28,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:08:28,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:08:28,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:08:28,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:08:28,337 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:08:28,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:08:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash -717223277, now seen corresponding path program 1 times [2022-12-14 12:08:28,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:08:28,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763580834] [2022-12-14 12:08:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:08:28,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:08:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:08:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:08:28,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:08:28,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763580834] [2022-12-14 12:08:28,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763580834] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:08:28,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615152881] [2022-12-14 12:08:28,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:08:28,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:08:28,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:08:28,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:08:28,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:08:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:08:28,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:08:28,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:08:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:08:28,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:08:28,744 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:08:28,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615152881] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:08:28,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1584846756] [2022-12-14 12:08:28,747 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-12-14 12:08:28,747 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:08:28,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:08:28,748 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:08:28,748 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:09:52,242 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:09:52,546 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 230 for LOIs [2022-12-14 12:09:52,607 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 231 for LOIs [2022-12-14 12:09:52,667 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 277 for LOIs [2022-12-14 12:09:52,805 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:09:53,106 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:10:36,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1584846756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:36,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:10:36,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2022-12-14 12:10:36,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140317801] [2022-12-14 12:10:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:36,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-14 12:10:36,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-14 12:10:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 12:10:36,521 INFO L87 Difference]: Start difference. First operand 463 states and 678 transitions. Second operand has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-12-14 12:10:52,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:52,751 INFO L93 Difference]: Finished difference Result 885 states and 1342 transitions. [2022-12-14 12:10:52,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 12:10:52,752 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) Word has length 89 [2022-12-14 12:10:52,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:52,753 INFO L225 Difference]: With dead ends: 885 [2022-12-14 12:10:52,753 INFO L226 Difference]: Without dead ends: 565 [2022-12-14 12:10:52,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 49.4s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 12:10:52,755 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 126 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 3486 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 3774 SdHoareTripleChecker+Invalid, 3497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:52,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 3774 Invalid, 3497 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3486 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-12-14 12:10:52,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-12-14 12:10:53,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 501. [2022-12-14 12:10:53,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 348 states have (on average 1.4166666666666667) internal successors, (493), 351 states have internal predecessors, (493), 118 states have call successors, (118), 36 states have call predecessors, (118), 34 states have return successors, (118), 113 states have call predecessors, (118), 117 states have call successors, (118) [2022-12-14 12:10:53,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 729 transitions. [2022-12-14 12:10:53,082 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 729 transitions. Word has length 89 [2022-12-14 12:10:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:53,082 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 729 transitions. [2022-12-14 12:10:53,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-12-14 12:10:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 729 transitions. [2022-12-14 12:10:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 12:10:53,083 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:53,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:53,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 12:10:53,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 12:10:53,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:10:53,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:53,285 INFO L85 PathProgramCache]: Analyzing trace with hash -15556235, now seen corresponding path program 1 times [2022-12-14 12:10:53,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:53,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759550732] [2022-12-14 12:10:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:53,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:10:53,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:53,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759550732] [2022-12-14 12:10:53,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759550732] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:10:53,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662944442] [2022-12-14 12:10:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:53,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:10:53,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:10:53,371 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:10:53,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d19351-e258-4a96-9370-d4a2acb0a55a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:10:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:53,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:10:53,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:10:53,555 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:10:53,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:10:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:10:53,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662944442] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:10:53,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [983755288] [2022-12-14 12:10:53,591 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 12:10:53,591 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:10:53,591 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:10:53,591 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:10:53,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:11:25,353 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 12:11:25,661 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 468 for LOIs [2022-12-14 12:11:55,984 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:11:56,293 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 466 for LOIs [2022-12-14 12:12:09,698 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 268 for LOIs [2022-12-14 12:12:16,514 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 250 for LOIs [2022-12-14 12:12:16,550 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 251 for LOIs [2022-12-14 12:12:16,593 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-12-14 12:12:16,634 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 446 for LOIs [2022-12-14 12:12:16,933 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-12-14 12:12:17,589 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 250 for LOIs [2022-12-14 12:12:17,631 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 444 for LOIs [2022-12-14 12:12:17,947 INFO L180 IcfgInterpreter]: Interpretation finished