./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product40.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_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/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_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/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_fb4220a8-664c-4a7f-9d2f-516760b5cb29/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 3d6b4da8bd47478af9a0348a2f21d8475ccd8463dda8c629c98551dc6b564226 --- 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 11:02:06,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:02:06,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:02:06,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:02:06,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:02:06,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:02:06,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:02:06,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:02:06,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:02:06,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:02:06,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:02:06,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:02:06,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:02:06,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:02:06,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:02:06,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:02:06,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:02:06,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:02:06,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:02:06,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:02:06,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:02:06,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:02:06,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:02:06,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:02:06,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:02:06,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:02:06,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:02:06,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:02:06,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:02:06,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:02:06,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:02:06,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:02:06,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:02:06,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:02:06,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:02:06,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:02:06,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:02:06,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:02:06,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:02:06,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:02:06,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:02:06,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:02:06,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:02:06,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:02:06,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:02:06,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:02:06,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:02:06,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:02:06,461 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:02:06,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:02:06,462 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:02:06,462 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:02:06,462 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:02:06,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:02:06,462 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:02:06,462 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:02:06,463 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:02:06,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:02:06,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:02:06,463 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:02:06,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:02:06,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:02:06,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:02:06,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:02:06,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:02:06,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:02:06,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:02:06,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:02:06,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:02:06,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:02:06,465 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:02:06,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:02:06,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:02:06,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:02:06,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:02:06,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:02:06,467 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:02:06,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:02:06,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:02:06,467 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:02:06,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:02:06,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:02:06,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:02:06,468 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_fb4220a8-664c-4a7f-9d2f-516760b5cb29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d6b4da8bd47478af9a0348a2f21d8475ccd8463dda8c629c98551dc6b564226 [2022-12-14 11:02:06,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:02:06,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:02:06,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:02:06,675 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:02:06,675 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:02:06,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec11_product40.cil.c [2022-12-14 11:02:09,355 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:02:09,565 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:02:09,565 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c [2022-12-14 11:02:09,577 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/data/a1712d094/86e94ac228f44b51af658b40c6838aff/FLAG9068cb55b [2022-12-14 11:02:09,588 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/data/a1712d094/86e94ac228f44b51af658b40c6838aff [2022-12-14 11:02:09,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:02:09,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:02:09,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:02:09,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:02:09,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:02:09,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:02:09" (1/1) ... [2022-12-14 11:02:09,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76771e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:09, skipping insertion in model container [2022-12-14 11:02:09,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:02:09" (1/1) ... [2022-12-14 11:02:09,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:02:09,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:02:09,750 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,790 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,793 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,794 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,795 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,805 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,806 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,810 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_fb4220a8-664c-4a7f-9d2f-516760b5cb29/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c[8480,8493] [2022-12-14 11:02:09,956 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,957 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,959 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:02:09,971 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:02:09,982 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,985 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,986 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,986 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,987 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,991 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,991 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:09,992 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_fb4220a8-664c-4a7f-9d2f-516760b5cb29/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c[8480,8493] [2022-12-14 11:02:10,034 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:10,034 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:10,036 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:02:10,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:02:10,058 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:02:10,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10 WrapperNode [2022-12-14 11:02:10,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:02:10,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:02:10,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:02:10,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:02:10,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,108 INFO L138 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 910 [2022-12-14 11:02:10,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:02:10,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:02:10,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:02:10,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:02:10,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:02:10,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:02:10,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:02:10,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:02:10,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (1/1) ... [2022-12-14 11:02:10,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:02:10,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:02:10,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:02:10,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:02:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 11:02:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 11:02:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 11:02:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 11:02:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 11:02:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 11:02:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 11:02:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 11:02:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 11:02:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 11:02:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 11:02:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 11:02:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 11:02:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 11:02:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 11:02:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 11:02:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 11:02:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 11:02:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 11:02:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 11:02:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 11:02:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 11:02:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 11:02:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:02:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 11:02:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 11:02:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 11:02:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 11:02:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 11:02:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 11:02:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 11:02:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 11:02:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 11:02:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 11:02:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 11:02:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 11:02:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 11:02:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 11:02:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:02:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 11:02:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 11:02:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 11:02:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 11:02:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:02:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:02:10,351 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:02:10,353 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:02:10,935 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:02:11,272 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:02:11,272 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:02:11,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:02:11 BoogieIcfgContainer [2022-12-14 11:02:11,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:02:11,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:02:11,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:02:11,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:02:11,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:02:09" (1/3) ... [2022-12-14 11:02:11,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ff8d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:02:11, skipping insertion in model container [2022-12-14 11:02:11,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:10" (2/3) ... [2022-12-14 11:02:11,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ff8d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:02:11, skipping insertion in model container [2022-12-14 11:02:11,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:02:11" (3/3) ... [2022-12-14 11:02:11,281 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product40.cil.c [2022-12-14 11:02:11,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:02:11,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:02:11,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:02:11,336 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;@1a86146b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:02:11,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:02:11,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 100 states have internal predecessors, (128), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 11:02:11,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 11:02:11,348 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:02:11,349 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:02:11,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:02:11,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:02:11,353 INFO L85 PathProgramCache]: Analyzing trace with hash -824050143, now seen corresponding path program 1 times [2022-12-14 11:02:11,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:02:11,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081317254] [2022-12-14 11:02:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:02:11,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:02:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:02:11,560 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:02:11,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:02:11,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081317254] [2022-12-14 11:02:11,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081317254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:02:11,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:02:11,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:02:11,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585372145] [2022-12-14 11:02:11,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:02:11,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:02:11,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:02:11,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:02:11,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:02:11,597 INFO L87 Difference]: Start difference. First operand has 171 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 100 states have internal predecessors, (128), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:02:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:02:11,688 INFO L93 Difference]: Finished difference Result 250 states and 335 transitions. [2022-12-14 11:02:11,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:02:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-12-14 11:02:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:02:11,697 INFO L225 Difference]: With dead ends: 250 [2022-12-14 11:02:11,698 INFO L226 Difference]: Without dead ends: 168 [2022-12-14 11:02:11,700 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 11:02:11,702 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:02:11,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:02:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-14 11:02:11,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-12-14 11:02:11,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 97 states have internal predecessors, (122), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 11:02:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 225 transitions. [2022-12-14 11:02:11,740 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 225 transitions. Word has length 61 [2022-12-14 11:02:11,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:02:11,741 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 225 transitions. [2022-12-14 11:02:11,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:02:11,741 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 225 transitions. [2022-12-14 11:02:11,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 11:02:11,744 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:02:11,744 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:02:11,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:02:11,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:02:11,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:02:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1758465058, now seen corresponding path program 1 times [2022-12-14 11:02:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:02:11,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428243666] [2022-12-14 11:02:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:02:11,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:02:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:02:11,863 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:02:11,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:02:11,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428243666] [2022-12-14 11:02:11,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428243666] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:02:11,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:02:11,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:02:11,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236918347] [2022-12-14 11:02:11,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:02:11,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:02:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:02:11,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:02:11,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:02:11,865 INFO L87 Difference]: Start difference. First operand 168 states and 225 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:02:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:02:11,968 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2022-12-14 11:02:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:02:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-12-14 11:02:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:02:11,971 INFO L225 Difference]: With dead ends: 246 [2022-12-14 11:02:11,971 INFO L226 Difference]: Without dead ends: 170 [2022-12-14 11:02:11,973 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 11:02:11,974 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:02:11,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:02:11,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-14 11:02:11,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-12-14 11:02:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 99 states have internal predecessors, (124), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 11:02:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 227 transitions. [2022-12-14 11:02:11,992 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 227 transitions. Word has length 62 [2022-12-14 11:02:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:02:11,992 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 227 transitions. [2022-12-14 11:02:11,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:02:11,993 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 227 transitions. [2022-12-14 11:02:11,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 11:02:11,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:02:11,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:02:11,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:02:11,996 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:02:11,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:02:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1454065582, now seen corresponding path program 1 times [2022-12-14 11:02:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:02:11,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687799487] [2022-12-14 11:02:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:02:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:02:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:02:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:02:12,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:02:12,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687799487] [2022-12-14 11:02:12,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687799487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:02:12,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:02:12,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:02:12,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111080778] [2022-12-14 11:02:12,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:02:12,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:02:12,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:02:12,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:02:12,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:02:12,099 INFO L87 Difference]: Start difference. First operand 170 states and 227 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:02:12,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:02:12,191 INFO L93 Difference]: Finished difference Result 375 states and 521 transitions. [2022-12-14 11:02:12,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:02:12,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-12-14 11:02:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:02:12,194 INFO L225 Difference]: With dead ends: 375 [2022-12-14 11:02:12,194 INFO L226 Difference]: Without dead ends: 223 [2022-12-14 11:02:12,195 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 11:02:12,196 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 59 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:02:12,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 398 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:02:12,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-12-14 11:02:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 218. [2022-12-14 11:02:12,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 131 states have (on average 1.366412213740458) internal successors, (179), 133 states have internal predecessors, (179), 66 states have call successors, (66), 20 states have call predecessors, (66), 20 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:02:12,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 310 transitions. [2022-12-14 11:02:12,220 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 310 transitions. Word has length 67 [2022-12-14 11:02:12,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:02:12,221 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 310 transitions. [2022-12-14 11:02:12,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:02:12,221 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 310 transitions. [2022-12-14 11:02:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 11:02:12,224 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:02:12,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:02:12,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:02:12,224 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:02:12,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:02:12,225 INFO L85 PathProgramCache]: Analyzing trace with hash -826364578, now seen corresponding path program 1 times [2022-12-14 11:02:12,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:02:12,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723420071] [2022-12-14 11:02:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:02:12,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:02:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:02:12,355 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:02:12,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:02:12,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723420071] [2022-12-14 11:02:12,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723420071] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:02:12,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753706086] [2022-12-14 11:02:12,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:02:12,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:02:12,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:02:12,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:02:12,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:02:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:02:12,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:02:12,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:02:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:02:12,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:02:12,702 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:02:12,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753706086] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:02:12,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1548633149] [2022-12-14 11:02:12,722 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2022-12-14 11:02:12,722 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:02:12,726 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:02:12,731 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:02:12,731 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:02:44,549 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 11:02:44,858 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 11:02:45,190 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 456 for LOIs [2022-12-14 11:03:07,241 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 446 for LOIs [2022-12-14 11:03:07,538 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 454 for LOIs [2022-12-14 11:03:11,096 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 251 for LOIs [2022-12-14 11:03:14,363 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 242 for LOIs [2022-12-14 11:03:14,395 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 239 for LOIs [2022-12-14 11:03:14,436 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 447 for LOIs [2022-12-14 11:03:15,102 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 434 for LOIs [2022-12-14 11:03:15,384 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:04:54,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1548633149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:04:54,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:04:54,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-12-14 11:04:54,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505864234] [2022-12-14 11:04:54,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:04:54,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 11:04:54,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:04:54,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 11:04:54,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2819, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 11:04:54,961 INFO L87 Difference]: Start difference. First operand 218 states and 310 transitions. Second operand has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 11:05:33,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:33,549 INFO L93 Difference]: Finished difference Result 584 states and 896 transitions. [2022-12-14 11:05:33,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 11:05:33,550 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 68 [2022-12-14 11:05:33,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:33,553 INFO L225 Difference]: With dead ends: 584 [2022-12-14 11:05:33,553 INFO L226 Difference]: Without dead ends: 384 [2022-12-14 11:05:33,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 118.8s TimeCoverageRelationStatistics Valid=222, Invalid=3938, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 11:05:33,555 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 291 mSDsluCounter, 5516 mSDsCounter, 0 mSdLazyCounter, 7558 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 5750 SdHoareTripleChecker+Invalid, 7589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 7558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:33,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 5750 Invalid, 7589 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [31 Valid, 7558 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2022-12-14 11:05:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-12-14 11:05:33,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 279. [2022-12-14 11:05:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 176 states have (on average 1.3579545454545454) internal successors, (239), 179 states have internal predecessors, (239), 75 states have call successors, (75), 29 states have call predecessors, (75), 27 states have return successors, (75), 70 states have call predecessors, (75), 74 states have call successors, (75) [2022-12-14 11:05:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 389 transitions. [2022-12-14 11:05:33,682 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 389 transitions. Word has length 68 [2022-12-14 11:05:33,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:33,683 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 389 transitions. [2022-12-14 11:05:33,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 11:05:33,683 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 389 transitions. [2022-12-14 11:05:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 11:05:33,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:33,686 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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 11:05:33,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:05:33,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:33,888 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:33,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:33,890 INFO L85 PathProgramCache]: Analyzing trace with hash 656858658, now seen corresponding path program 1 times [2022-12-14 11:05:33,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:33,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125256043] [2022-12-14 11:05:33,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:33,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:05:33,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:33,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125256043] [2022-12-14 11:05:33,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125256043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:33,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:33,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:05:33,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37822588] [2022-12-14 11:05:33,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:33,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:05:33,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:05:33,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:05:33,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:05:33,948 INFO L87 Difference]: Start difference. First operand 279 states and 389 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:05:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:34,189 INFO L93 Difference]: Finished difference Result 660 states and 958 transitions. [2022-12-14 11:05:34,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:05:34,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-12-14 11:05:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:34,192 INFO L225 Difference]: With dead ends: 660 [2022-12-14 11:05:34,192 INFO L226 Difference]: Without dead ends: 407 [2022-12-14 11:05:34,193 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 11:05:34,193 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 57 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:34,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 414 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:05:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-12-14 11:05:34,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 400. [2022-12-14 11:05:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 266 states have (on average 1.4248120300751879) internal successors, (379), 269 states have internal predecessors, (379), 106 states have call successors, (106), 29 states have call predecessors, (106), 27 states have return successors, (106), 101 states have call predecessors, (106), 105 states have call successors, (106) [2022-12-14 11:05:34,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 591 transitions. [2022-12-14 11:05:34,360 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 591 transitions. Word has length 73 [2022-12-14 11:05:34,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:34,361 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 591 transitions. [2022-12-14 11:05:34,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:05:34,361 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 591 transitions. [2022-12-14 11:05:34,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 11:05:34,363 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:34,363 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-12-14 11:05:34,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:05:34,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:34,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:34,364 INFO L85 PathProgramCache]: Analyzing trace with hash 645218417, now seen corresponding path program 1 times [2022-12-14 11:05:34,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:34,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957024360] [2022-12-14 11:05:34,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:34,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:05:34,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:34,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957024360] [2022-12-14 11:05:34,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957024360] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:05:34,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505356018] [2022-12-14 11:05:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:34,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:34,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:34,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:05:34,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:05:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:34,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:05:34,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:05:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:05:34,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:05:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:05:34,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505356018] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:05:34,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [920336162] [2022-12-14 11:05:34,737 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 11:05:34,737 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:05:34,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:05:34,737 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:05:34,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:06:16,278 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 11:06:16,583 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 11:06:16,894 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:06:56,160 WARN L233 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 583 DAG size of output: 379 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:07:10,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [920336162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:07:10,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:07:10,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 11:07:10,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012634491] [2022-12-14 11:07:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:07:10,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 11:07:10,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:07:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 11:07:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:07:10,725 INFO L87 Difference]: Start difference. First operand 400 states and 591 transitions. Second operand has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 11:07:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:07:35,116 INFO L93 Difference]: Finished difference Result 785 states and 1200 transitions. [2022-12-14 11:07:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 11:07:35,117 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 74 [2022-12-14 11:07:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:07:35,119 INFO L225 Difference]: With dead ends: 785 [2022-12-14 11:07:35,119 INFO L226 Difference]: Without dead ends: 485 [2022-12-14 11:07:35,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 194 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 71.6s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 11:07:35,120 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 135 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:07:35,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 3094 Invalid, 2110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 11:07:35,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-12-14 11:07:35,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 430. [2022-12-14 11:07:35,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 294 states have (on average 1.4285714285714286) internal successors, (420), 297 states have internal predecessors, (420), 107 states have call successors, (107), 30 states have call predecessors, (107), 28 states have return successors, (107), 102 states have call predecessors, (107), 106 states have call successors, (107) [2022-12-14 11:07:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 634 transitions. [2022-12-14 11:07:35,310 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 634 transitions. Word has length 74 [2022-12-14 11:07:35,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:07:35,311 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 634 transitions. [2022-12-14 11:07:35,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 11:07:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 634 transitions. [2022-12-14 11:07:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 11:07:35,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:07:35,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:07:35,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 11:07:35,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:07:35,514 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:07:35,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:07:35,515 INFO L85 PathProgramCache]: Analyzing trace with hash 981019354, now seen corresponding path program 1 times [2022-12-14 11:07:35,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:07:35,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203679913] [2022-12-14 11:07:35,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:07:35,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:07:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:07:35,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:07:35,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:07:35,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203679913] [2022-12-14 11:07:35,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203679913] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:07:35,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260801406] [2022-12-14 11:07:35,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:07:35,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:07:35,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:07:35,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:07:35,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:07:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:07:35,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:07:35,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:07:35,936 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:07:35,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:07:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:07:35,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260801406] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:07:35,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1278154657] [2022-12-14 11:07:35,986 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 11:07:35,986 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:07:35,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:07:35,987 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:07:35,987 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:09:10,990 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:09:11,294 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 418 for LOIs [2022-12-14 11:09:11,581 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 415 for LOIs [2022-12-14 11:09:11,862 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 218 for LOIs [2022-12-14 11:09:13,002 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-12-14 11:09:13,061 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-12-14 11:09:13,092 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 11:09:13,392 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 218 for LOIs [2022-12-14 11:09:13,896 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 223 for LOIs [2022-12-14 11:09:16,050 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-12-14 11:09:16,080 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 416 for LOIs [2022-12-14 11:09:17,530 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 198 for LOIs [2022-12-14 11:09:17,594 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:10:01,653 WARN L233 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 532 DAG size of output: 413 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:10:12,612 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 527 DAG size of output: 315 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:10:24,141 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 530 DAG size of output: 320 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:10:48,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1278154657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:48,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:10:48,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 11:10:48,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797594137] [2022-12-14 11:10:48,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:48,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 11:10:48,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:48,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 11:10:48,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=3255, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 11:10:48,384 INFO L87 Difference]: Start difference. First operand 430 states and 634 transitions. Second operand has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 11:11:19,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:11:19,294 INFO L93 Difference]: Finished difference Result 904 states and 1368 transitions. [2022-12-14 11:11:19,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-14 11:11:19,295 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 77 [2022-12-14 11:11:19,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:11:19,297 INFO L225 Difference]: With dead ends: 904 [2022-12-14 11:11:19,297 INFO L226 Difference]: Without dead ends: 599 [2022-12-14 11:11:19,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 102.9s TimeCoverageRelationStatistics Valid=211, Invalid=4079, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 11:11:19,299 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 179 mSDsluCounter, 5012 mSDsCounter, 0 mSdLazyCounter, 6952 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 6976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:11:19,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 5234 Invalid, 6976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 6952 Invalid, 0 Unknown, 0 Unchecked, 18.1s Time] [2022-12-14 11:11:19,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-12-14 11:11:19,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 515. [2022-12-14 11:11:19,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 360 states have (on average 1.4166666666666667) internal successors, (510), 364 states have internal predecessors, (510), 118 states have call successors, (118), 40 states have call predecessors, (118), 36 states have return successors, (119), 110 states have call predecessors, (119), 117 states have call successors, (119) [2022-12-14 11:11:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 747 transitions. [2022-12-14 11:11:19,601 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 747 transitions. Word has length 77 [2022-12-14 11:11:19,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:11:19,602 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 747 transitions. [2022-12-14 11:11:19,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 11:11:19,602 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 747 transitions. [2022-12-14 11:11:19,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 11:11:19,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:11:19,603 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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 11:11:19,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 11:11:19,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 11:11:19,805 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:11:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:11:19,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1099941649, now seen corresponding path program 1 times [2022-12-14 11:11:19,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:11:19,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261974592] [2022-12-14 11:11:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:11:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:19,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:11:19,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261974592] [2022-12-14 11:11:19,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261974592] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:11:19,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406147770] [2022-12-14 11:11:19,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:19,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:11:19,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:11:19,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:11:19,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:11:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:20,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:11:20,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:11:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:20,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:11:20,105 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:20,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406147770] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:11:20,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [652535838] [2022-12-14 11:11:20,107 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 11:11:20,107 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:11:20,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:11:20,108 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:11:20,108 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:12:09,126 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 11:12:09,421 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 11:12:09,720 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:12:49,459 WARN L233 SmtUtils]: Spent 7.00s on a formula simplification. DAG size of input: 605 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:13:01,729 WARN L233 SmtUtils]: Spent 12.01s on a formula simplification. DAG size of input: 607 DAG size of output: 479 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:13:08,621 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 606 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:13:16,084 WARN L233 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 604 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:13:23,844 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 603 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:13:31,673 WARN L233 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 601 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:13:43,833 WARN L233 SmtUtils]: Spent 11.82s on a formula simplification. DAG size of input: 600 DAG size of output: 476 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:13:54,922 WARN L233 SmtUtils]: Spent 10.72s on a formula simplification. DAG size of input: 598 DAG size of output: 474 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:14:04,878 WARN L233 SmtUtils]: Spent 9.56s on a formula simplification. DAG size of input: 597 DAG size of output: 474 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:14:15,956 WARN L233 SmtUtils]: Spent 10.66s on a formula simplification. DAG size of input: 595 DAG size of output: 472 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:14:23,062 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 594 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:14:29,909 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 592 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:14:32,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [652535838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:14:32,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:14:32,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 11:14:32,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608775831] [2022-12-14 11:14:32,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:14:32,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 11:14:32,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:14:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 11:14:32,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:14:32,620 INFO L87 Difference]: Start difference. First operand 515 states and 747 transitions. Second operand has 29 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 11:14:42,719 WARN L233 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 553 DAG size of output: 432 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:14:48,919 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 608 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:15:02,185 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 600 DAG size of output: 413 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:15:14,854 WARN L233 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 554 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:15:20,821 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 545 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:15:26,264 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 596 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:15:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:15:34,152 INFO L93 Difference]: Finished difference Result 889 states and 1339 transitions. [2022-12-14 11:15:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-14 11:15:34,153 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 76 [2022-12-14 11:15:34,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:15:34,155 INFO L225 Difference]: With dead ends: 889 [2022-12-14 11:15:34,155 INFO L226 Difference]: Without dead ends: 589 [2022-12-14 11:15:34,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 195.9s TimeCoverageRelationStatistics Valid=354, Invalid=1716, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 11:15:34,156 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 159 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:15:34,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3039 Invalid, 2241 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-12-14 11:15:34,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-12-14 11:15:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 535. [2022-12-14 11:15:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 380 states have (on average 1.4210526315789473) internal successors, (540), 384 states have internal predecessors, (540), 118 states have call successors, (118), 40 states have call predecessors, (118), 36 states have return successors, (119), 110 states have call predecessors, (119), 117 states have call successors, (119) [2022-12-14 11:15:34,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 777 transitions. [2022-12-14 11:15:34,506 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 777 transitions. Word has length 76 [2022-12-14 11:15:34,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:15:34,506 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 777 transitions. [2022-12-14 11:15:34,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 11:15:34,506 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 777 transitions. [2022-12-14 11:15:34,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 11:15:34,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:15:34,507 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 11:15:34,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:15:34,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4220a8-664c-4a7f-9d2f-516760b5cb29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 11:15:34,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:15:34,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:15:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash -417570970, now seen corresponding path program 1 times [2022-12-14 11:15:34,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:15:34,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376130642] [2022-12-14 11:15:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:15:34,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:15:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:15:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 11:15:34,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:15:34,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376130642] [2022-12-14 11:15:34,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376130642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:15:34,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:15:34,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 11:15:34,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814194358] [2022-12-14 11:15:34,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:15:34,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:15:34,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:15:34,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:15:34,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:15:34,829 INFO L87 Difference]: Start difference. First operand 535 states and 777 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-12-14 11:15:35,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:15:35,299 INFO L93 Difference]: Finished difference Result 549 states and 800 transitions. [2022-12-14 11:15:35,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:15:35,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 79 [2022-12-14 11:15:35,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:15:35,299 INFO L225 Difference]: With dead ends: 549 [2022-12-14 11:15:35,299 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 11:15:35,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:15:35,301 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 83 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:15:35,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 923 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:15:35,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 11:15:35,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 11:15:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:15:35,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 11:15:35,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2022-12-14 11:15:35,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:15:35,302 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 11:15:35,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-12-14 11:15:35,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 11:15:35,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 11:15:35,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 11:15:35,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:15:35,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.