./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/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_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/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_73147e60-f617-490c-949e-22109f3cefe4/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 3d972cfbd720871733ec5c68c499418657e5e73014fcfa137b0a1c37f3300ef7 --- 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 09:46:12,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:46:12,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:46:12,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:46:12,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:46:12,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:46:12,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:46:12,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:46:12,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:46:12,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:46:12,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:46:12,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:46:12,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:46:12,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:46:12,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:46:12,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:46:12,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:46:12,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:46:12,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:46:12,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:46:12,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:46:12,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:46:12,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:46:12,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:46:12,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:46:12,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:46:12,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:46:12,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:46:12,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:46:12,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:46:12,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:46:12,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:46:12,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:46:12,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:46:12,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:46:12,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:46:12,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:46:12,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:46:12,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:46:12,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:46:12,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:46:12,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:46:12,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:46:12,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:46:12,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:46:12,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:46:12,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:46:12,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:46:12,793 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:46:12,793 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:46:12,793 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:46:12,794 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:46:12,794 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:46:12,794 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:46:12,794 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:46:12,794 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:46:12,794 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:46:12,794 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:46:12,794 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:46:12,795 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:46:12,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:46:12,795 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:46:12,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:46:12,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:46:12,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:46:12,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:46:12,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:46:12,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:46:12,796 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:46:12,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:46:12,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:46:12,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:46:12,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:46:12,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:46:12,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:46:12,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:46:12,797 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:46:12,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:46:12,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:46:12,797 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:46:12,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:46:12,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:46:12,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:46:12,798 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_73147e60-f617-490c-949e-22109f3cefe4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d972cfbd720871733ec5c68c499418657e5e73014fcfa137b0a1c37f3300ef7 [2022-12-14 09:46:12,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:46:12,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:46:12,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:46:12,973 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:46:12,973 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:46:12,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product29.cil.c [2022-12-14 09:46:15,582 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:46:15,818 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:46:15,819 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/sv-benchmarks/c/product-lines/email_spec6_product29.cil.c [2022-12-14 09:46:15,834 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/data/c45b02f89/2301a839bc744324814293257eca0ad8/FLAG2be896e2e [2022-12-14 09:46:15,846 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/data/c45b02f89/2301a839bc744324814293257eca0ad8 [2022-12-14 09:46:15,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:46:15,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:46:15,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:46:15,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:46:15,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:46:15,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:46:15" (1/1) ... [2022-12-14 09:46:15,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128935d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:15, skipping insertion in model container [2022-12-14 09:46:15,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:46:15" (1/1) ... [2022-12-14 09:46:15,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:46:15,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:46:16,163 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,168 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,174 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,250 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,253 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,334 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_73147e60-f617-490c-949e-22109f3cefe4/sv-benchmarks/c/product-lines/email_spec6_product29.cil.c[42927,42940] [2022-12-14 09:46:16,396 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,400 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,401 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,402 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:46:16,418 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:46:16,429 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,430 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,432 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,445 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,446 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,464 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_73147e60-f617-490c-949e-22109f3cefe4/sv-benchmarks/c/product-lines/email_spec6_product29.cil.c[42927,42940] [2022-12-14 09:46:16,477 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,478 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,479 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,479 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:16,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:46:16,517 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:46:16,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16 WrapperNode [2022-12-14 09:46:16,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:46:16,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:46:16,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:46:16,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:46:16,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,584 INFO L138 Inliner]: procedures = 132, calls = 234, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 950 [2022-12-14 09:46:16,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:46:16,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:46:16,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:46:16,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:46:16,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,634 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:46:16,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:46:16,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:46:16,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:46:16,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (1/1) ... [2022-12-14 09:46:16,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:46:16,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:46:16,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:46:16,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:46:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 09:46:16,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 09:46:16,706 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 09:46:16,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 09:46:16,706 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 09:46:16,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 09:46:16,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 09:46:16,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 09:46:16,706 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 09:46:16,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 09:46:16,707 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 09:46:16,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 09:46:16,707 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 09:46:16,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 09:46:16,707 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 09:46:16,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 09:46:16,707 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 09:46:16,707 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 09:46:16,707 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 09:46:16,708 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 09:46:16,708 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 09:46:16,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 09:46:16,708 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 09:46:16,708 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 09:46:16,708 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 09:46:16,708 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 09:46:16,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 09:46:16,709 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 09:46:16,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 09:46:16,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:46:16,709 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 09:46:16,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 09:46:16,709 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 09:46:16,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 09:46:16,709 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 09:46:16,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 09:46:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 09:46:16,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 09:46:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 09:46:16,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 09:46:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 09:46:16,710 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 09:46:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 09:46:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 09:46:16,711 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 09:46:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 09:46:16,711 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 09:46:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 09:46:16,711 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 09:46:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 09:46:16,711 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 09:46:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 09:46:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 09:46:16,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 09:46:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:46:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 09:46:16,712 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 09:46:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 09:46:16,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 09:46:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:46:16,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:46:16,874 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:46:16,876 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:46:17,442 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:46:17,758 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:46:17,758 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:46:17,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:46:17 BoogieIcfgContainer [2022-12-14 09:46:17,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:46:17,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:46:17,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:46:17,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:46:17,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:46:15" (1/3) ... [2022-12-14 09:46:17,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3722bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:46:17, skipping insertion in model container [2022-12-14 09:46:17,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:16" (2/3) ... [2022-12-14 09:46:17,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3722bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:46:17, skipping insertion in model container [2022-12-14 09:46:17,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:46:17" (3/3) ... [2022-12-14 09:46:17,767 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2022-12-14 09:46:17,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:46:17,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:46:17,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:46:17,825 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;@28ff924d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:46:17,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:46:17,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 09:46:17,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 09:46:17,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:17,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:17,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:17,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:17,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2005069951, now seen corresponding path program 1 times [2022-12-14 09:46:17,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:17,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475344671] [2022-12-14 09:46:17,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:17,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:46:18,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:18,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475344671] [2022-12-14 09:46:18,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475344671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:18,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:46:18,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:46:18,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261332552] [2022-12-14 09:46:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:18,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:46:18,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:18,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:46:18,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:46:18,115 INFO L87 Difference]: Start difference. First operand has 217 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:46:18,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:18,234 INFO L93 Difference]: Finished difference Result 342 states and 449 transitions. [2022-12-14 09:46:18,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:46:18,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 98 [2022-12-14 09:46:18,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:18,244 INFO L225 Difference]: With dead ends: 342 [2022-12-14 09:46:18,244 INFO L226 Difference]: Without dead ends: 214 [2022-12-14 09:46:18,247 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 09:46:18,249 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:18,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:46:18,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-12-14 09:46:18,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-12-14 09:46:18,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 09:46:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 282 transitions. [2022-12-14 09:46:18,300 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 282 transitions. Word has length 98 [2022-12-14 09:46:18,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:18,301 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 282 transitions. [2022-12-14 09:46:18,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:46:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 282 transitions. [2022-12-14 09:46:18,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 09:46:18,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:18,304 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:18,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:46:18,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:18,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1072195051, now seen corresponding path program 1 times [2022-12-14 09:46:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:18,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701456861] [2022-12-14 09:46:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:18,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:46:18,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:18,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701456861] [2022-12-14 09:46:18,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701456861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:18,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:46:18,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:46:18,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105097496] [2022-12-14 09:46:18,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:18,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:46:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:18,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:46:18,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:46:18,498 INFO L87 Difference]: Start difference. First operand 214 states and 282 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:46:18,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:18,603 INFO L93 Difference]: Finished difference Result 338 states and 434 transitions. [2022-12-14 09:46:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:46:18,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 88 [2022-12-14 09:46:18,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:18,606 INFO L225 Difference]: With dead ends: 338 [2022-12-14 09:46:18,607 INFO L226 Difference]: Without dead ends: 216 [2022-12-14 09:46:18,608 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 09:46:18,609 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:18,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:46:18,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-12-14 09:46:18,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-12-14 09:46:18,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 126 states have internal predecessors, (155), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 09:46:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 284 transitions. [2022-12-14 09:46:18,632 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 284 transitions. Word has length 88 [2022-12-14 09:46:18,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:18,633 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 284 transitions. [2022-12-14 09:46:18,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:46:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 284 transitions. [2022-12-14 09:46:18,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 09:46:18,636 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:18,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:18,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:46:18,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:18,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:18,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1603564102, now seen corresponding path program 1 times [2022-12-14 09:46:18,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:18,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971211257] [2022-12-14 09:46:18,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:18,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:46:18,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:18,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971211257] [2022-12-14 09:46:18,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971211257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:18,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:46:18,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:46:18,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156383421] [2022-12-14 09:46:18,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:18,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:46:18,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:18,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:46:18,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:46:18,791 INFO L87 Difference]: Start difference. First operand 216 states and 284 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:46:18,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:18,907 INFO L93 Difference]: Finished difference Result 467 states and 635 transitions. [2022-12-14 09:46:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:46:18,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 104 [2022-12-14 09:46:18,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:18,910 INFO L225 Difference]: With dead ends: 467 [2022-12-14 09:46:18,911 INFO L226 Difference]: Without dead ends: 269 [2022-12-14 09:46:18,912 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 09:46:18,913 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 59 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:18,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 504 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:46:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-12-14 09:46:18,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 264. [2022-12-14 09:46:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 156 states have (on average 1.3461538461538463) internal successors, (210), 160 states have internal predecessors, (210), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2022-12-14 09:46:18,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 367 transitions. [2022-12-14 09:46:18,940 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 367 transitions. Word has length 104 [2022-12-14 09:46:18,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:18,940 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 367 transitions. [2022-12-14 09:46:18,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:46:18,941 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 367 transitions. [2022-12-14 09:46:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 09:46:18,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:18,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:18,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:46:18,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:18,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:18,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1747837014, now seen corresponding path program 1 times [2022-12-14 09:46:18,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:18,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972173797] [2022-12-14 09:46:18,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:18,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:46:19,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:19,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972173797] [2022-12-14 09:46:19,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972173797] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:46:19,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88037860] [2022-12-14 09:46:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:19,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:46:19,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:46:19,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:46:19,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:46:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:19,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:46:19,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:46:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:46:19,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:46:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:46:19,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88037860] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:46:19,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1567419059] [2022-12-14 09:46:19,499 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-12-14 09:46:19,500 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:46:19,504 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:46:19,508 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:46:19,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:46:46,901 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:46:47,193 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-12-14 09:46:48,951 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 238 for LOIs [2022-12-14 09:46:48,987 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:46:49,278 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 266 for LOIs [2022-12-14 09:46:51,972 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 266 for LOIs [2022-12-14 09:47:01,869 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 228 for LOIs [2022-12-14 09:47:01,906 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 247 for LOIs [2022-12-14 09:47:01,971 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 245 for LOIs [2022-12-14 09:47:02,009 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-12-14 09:47:06,508 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 249 for LOIs [2022-12-14 09:47:06,546 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 252 for LOIs [2022-12-14 09:47:06,589 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:47:40,113 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 512 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:47:47,202 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 582 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:48:49,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1567419059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:49,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:48:49,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [4, 4, 4] total 65 [2022-12-14 09:48:49,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659434027] [2022-12-14 09:48:49,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:49,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-12-14 09:48:49,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:49,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-12-14 09:48:49,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=3987, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 09:48:49,857 INFO L87 Difference]: Start difference. First operand 264 states and 367 transitions. Second operand has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 09:49:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:33,914 INFO L93 Difference]: Finished difference Result 684 states and 1006 transitions. [2022-12-14 09:49:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-14 09:49:33,915 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 94 [2022-12-14 09:49:33,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:33,917 INFO L225 Difference]: With dead ends: 684 [2022-12-14 09:49:33,917 INFO L226 Difference]: Without dead ends: 438 [2022-12-14 09:49:33,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 219 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1250 ImplicationChecksByTransitivity, 117.4s TimeCoverageRelationStatistics Valid=231, Invalid=5171, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 09:49:33,920 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 199 mSDsluCounter, 7626 mSDsCounter, 0 mSdLazyCounter, 10159 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 7914 SdHoareTripleChecker+Invalid, 10189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 10159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:33,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 7914 Invalid, 10189 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [30 Valid, 10159 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2022-12-14 09:49:33,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-12-14 09:49:34,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 381. [2022-12-14 09:49:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 244 states have (on average 1.3852459016393444) internal successors, (338), 249 states have internal predecessors, (338), 99 states have call successors, (99), 39 states have call predecessors, (99), 37 states have return successors, (99), 94 states have call predecessors, (99), 98 states have call successors, (99) [2022-12-14 09:49:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 536 transitions. [2022-12-14 09:49:34,082 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 536 transitions. Word has length 94 [2022-12-14 09:49:34,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:34,083 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 536 transitions. [2022-12-14 09:49:34,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 09:49:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 536 transitions. [2022-12-14 09:49:34,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-14 09:49:34,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:34,085 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, 1, 1, 1, 1, 1, 1, 1, 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 09:49:34,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:49:34,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:49:34,287 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:49:34,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:34,288 INFO L85 PathProgramCache]: Analyzing trace with hash -309201678, now seen corresponding path program 1 times [2022-12-14 09:49:34,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:34,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761841799] [2022-12-14 09:49:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:34,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 09:49:34,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761841799] [2022-12-14 09:49:34,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761841799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:34,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:34,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:49:34,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879753222] [2022-12-14 09:49:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:34,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:49:34,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:34,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:49:34,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:49:34,391 INFO L87 Difference]: Start difference. First operand 381 states and 536 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 09:49:34,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:34,719 INFO L93 Difference]: Finished difference Result 886 states and 1294 transitions. [2022-12-14 09:49:34,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:49:34,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 110 [2022-12-14 09:49:34,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:34,723 INFO L225 Difference]: With dead ends: 886 [2022-12-14 09:49:34,723 INFO L226 Difference]: Without dead ends: 531 [2022-12-14 09:49:34,724 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 09:49:34,725 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 57 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:34,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 512 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:49:34,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-12-14 09:49:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 524. [2022-12-14 09:49:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 356 states have (on average 1.4578651685393258) internal successors, (519), 361 states have internal predecessors, (519), 130 states have call successors, (130), 39 states have call predecessors, (130), 37 states have return successors, (130), 125 states have call predecessors, (130), 129 states have call successors, (130) [2022-12-14 09:49:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 779 transitions. [2022-12-14 09:49:34,958 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 779 transitions. Word has length 110 [2022-12-14 09:49:34,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:34,959 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 779 transitions. [2022-12-14 09:49:34,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 09:49:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 779 transitions. [2022-12-14 09:49:34,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 09:49:34,962 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:34,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:49:34,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:49:34,962 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:49:34,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:34,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1000199310, now seen corresponding path program 1 times [2022-12-14 09:49:34,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:34,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502657004] [2022-12-14 09:49:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:34,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 09:49:35,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:35,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502657004] [2022-12-14 09:49:35,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502657004] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:49:35,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590211046] [2022-12-14 09:49:35,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:35,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:49:35,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:49:35,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:49:35,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:49:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:35,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:49:35,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:49:35,306 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 09:49:35,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:49:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 09:49:35,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590211046] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:49:35,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1860476629] [2022-12-14 09:49:35,358 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-12-14 09:49:35,358 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:49:35,359 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:49:35,359 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:49:35,359 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:50:25,895 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:50:26,241 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:50:26,522 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:51:09,387 WARN L233 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 583 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:51:41,914 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 584 DAG size of output: 401 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:51:42,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1860476629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:42,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:51:42,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 09:51:42,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796461882] [2022-12-14 09:51:42,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:42,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 09:51:42,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:42,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 09:51:42,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:51:42,074 INFO L87 Difference]: Start difference. First operand 524 states and 779 transitions. Second operand has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-12-14 09:51:48,667 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 494 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:52:10,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:10,269 INFO L93 Difference]: Finished difference Result 1024 states and 1575 transitions. [2022-12-14 09:52:10,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 09:52:10,271 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 111 [2022-12-14 09:52:10,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:10,273 INFO L225 Difference]: With dead ends: 1024 [2022-12-14 09:52:10,273 INFO L226 Difference]: Without dead ends: 678 [2022-12-14 09:52:10,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 305 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 96.8s TimeCoverageRelationStatistics Valid=197, Invalid=1135, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 09:52:10,274 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 187 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:52:10,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 3604 Invalid, 2045 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 09:52:10,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-12-14 09:52:10,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 589. [2022-12-14 09:52:10,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 417 states have (on average 1.4820143884892085) internal successors, (618), 424 states have internal predecessors, (618), 133 states have call successors, (133), 40 states have call predecessors, (133), 38 states have return successors, (133), 126 states have call predecessors, (133), 132 states have call successors, (133) [2022-12-14 09:52:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 884 transitions. [2022-12-14 09:52:10,580 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 884 transitions. Word has length 111 [2022-12-14 09:52:10,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:10,581 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 884 transitions. [2022-12-14 09:52:10,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-12-14 09:52:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 884 transitions. [2022-12-14 09:52:10,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 09:52:10,582 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:10,583 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:52:10,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:52:10,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:52:10,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:52:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:10,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1921487456, now seen corresponding path program 1 times [2022-12-14 09:52:10,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:10,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220308892] [2022-12-14 09:52:10,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:10,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:52:10,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:10,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220308892] [2022-12-14 09:52:10,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220308892] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:52:10,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235444071] [2022-12-14 09:52:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:10,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:52:10,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:52:10,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:52:10,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:52:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:11,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:52:11,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:52:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:52:11,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:52:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:52:11,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235444071] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:52:11,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [271734632] [2022-12-14 09:52:11,212 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2022-12-14 09:52:11,212 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:52:11,213 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:52:11,213 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:52:11,213 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:53:03,301 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:53:03,586 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 09:53:03,647 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-12-14 09:53:03,705 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 432 for LOIs [2022-12-14 09:53:03,995 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:53:04,285 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:53:45,352 WARN L233 SmtUtils]: Spent 7.81s on a formula simplification. DAG size of input: 623 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:54:01,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [271734632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:54:01,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:54:01,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 09:54:01,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012479278] [2022-12-14 09:54:01,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:54:01,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 09:54:01,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:54:01,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 09:54:01,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1019, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 09:54:01,411 INFO L87 Difference]: Start difference. First operand 589 states and 884 transitions. Second operand has 29 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-12-14 09:54:36,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:54:36,933 INFO L93 Difference]: Finished difference Result 1055 states and 1614 transitions. [2022-12-14 09:54:36,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 09:54:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 103 [2022-12-14 09:54:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:54:36,937 INFO L225 Difference]: With dead ends: 1055 [2022-12-14 09:54:36,937 INFO L226 Difference]: Without dead ends: 709 [2022-12-14 09:54:36,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 276 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 80.4s TimeCoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 09:54:36,939 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 206 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 3462 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 3637 SdHoareTripleChecker+Invalid, 3483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:54:36,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 3637 Invalid, 3483 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 3462 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2022-12-14 09:54:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-12-14 09:54:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 629. [2022-12-14 09:54:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 449 states have (on average 1.4766146993318485) internal successors, (663), 458 states have internal predecessors, (663), 138 states have call successors, (138), 43 states have call predecessors, (138), 41 states have return successors, (138), 129 states have call predecessors, (138), 137 states have call successors, (138) [2022-12-14 09:54:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 939 transitions. [2022-12-14 09:54:37,336 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 939 transitions. Word has length 103 [2022-12-14 09:54:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:54:37,337 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 939 transitions. [2022-12-14 09:54:37,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-12-14 09:54:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 939 transitions. [2022-12-14 09:54:37,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 09:54:37,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:54:37,340 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:54:37,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:54:37,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:54:37,540 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:54:37,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:54:37,541 INFO L85 PathProgramCache]: Analyzing trace with hash 181466508, now seen corresponding path program 1 times [2022-12-14 09:54:37,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:54:37,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37648714] [2022-12-14 09:54:37,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:54:37,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:54:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:54:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:54:38,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:54:38,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37648714] [2022-12-14 09:54:38,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37648714] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:54:38,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202218839] [2022-12-14 09:54:38,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:54:38,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:54:38,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:54:38,141 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:54:38,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:54:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:54:38,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:54:38,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:54:38,392 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:54:38,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:54:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:54:38,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202218839] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:54:38,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1423602873] [2022-12-14 09:54:38,481 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2022-12-14 09:54:38,481 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:54:38,481 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:54:38,481 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:54:38,481 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:55:10,675 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:55:10,955 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 260 for LOIs [2022-12-14 09:55:12,576 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 09:55:12,613 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 09:55:12,906 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 260 for LOIs [2022-12-14 09:55:15,460 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 262 for LOIs [2022-12-14 09:55:23,706 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-12-14 09:55:23,740 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 243 for LOIs [2022-12-14 09:55:23,803 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 439 for LOIs [2022-12-14 09:55:24,367 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 09:55:28,844 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 245 for LOIs [2022-12-14 09:55:28,882 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 248 for LOIs [2022-12-14 09:55:28,924 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:14,492 WARN L233 SmtUtils]: Spent 11.37s on a formula simplification. DAG size of input: 590 DAG size of output: 463 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:57:38,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1423602873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:38,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:57:38,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [17, 5, 5] total 83 [2022-12-14 09:57:38,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560813059] [2022-12-14 09:57:38,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:38,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-12-14 09:57:38,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:38,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-12-14 09:57:38,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=6329, Unknown=0, NotChecked=0, Total=6806 [2022-12-14 09:57:38,807 INFO L87 Difference]: Start difference. First operand 629 states and 939 transitions. Second operand has 64 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 38 states have internal predecessors, (51), 20 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2022-12-14 09:57:55,877 WARN L233 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 488 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:58:01,680 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 508 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:58:08,083 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 506 DAG size of output: 418 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:58:19,606 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 510 DAG size of output: 339 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:59:07,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:59:07,946 INFO L93 Difference]: Finished difference Result 1287 states and 1996 transitions. [2022-12-14 09:59:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-12-14 09:59:07,947 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 38 states have internal predecessors, (51), 20 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) Word has length 105 [2022-12-14 09:59:07,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:59:07,950 INFO L225 Difference]: With dead ends: 1287 [2022-12-14 09:59:07,950 INFO L226 Difference]: Without dead ends: 926 [2022-12-14 09:59:07,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 246 SyntacticMatches, 4 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 181.4s TimeCoverageRelationStatistics Valid=641, Invalid=8479, Unknown=0, NotChecked=0, Total=9120 [2022-12-14 09:59:07,953 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 253 mSDsluCounter, 7842 mSDsCounter, 0 mSdLazyCounter, 12096 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 8137 SdHoareTripleChecker+Invalid, 12145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 12096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:59:07,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 8137 Invalid, 12145 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [49 Valid, 12096 Invalid, 0 Unknown, 0 Unchecked, 36.3s Time] [2022-12-14 09:59:07,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-12-14 09:59:08,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 705. [2022-12-14 09:59:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 518 states have (on average 1.4961389961389961) internal successors, (775), 531 states have internal predecessors, (775), 144 states have call successors, (144), 44 states have call predecessors, (144), 42 states have return successors, (144), 131 states have call predecessors, (144), 143 states have call successors, (144) [2022-12-14 09:59:08,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1063 transitions. [2022-12-14 09:59:08,715 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1063 transitions. Word has length 105 [2022-12-14 09:59:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:59:08,715 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 1063 transitions. [2022-12-14 09:59:08,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 38 states have internal predecessors, (51), 20 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2022-12-14 09:59:08,715 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1063 transitions. [2022-12-14 09:59:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-14 09:59:08,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:59:08,717 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:59:08,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:59:08,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 09:59:08,919 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:59:08,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:59:08,920 INFO L85 PathProgramCache]: Analyzing trace with hash 668416238, now seen corresponding path program 1 times [2022-12-14 09:59:08,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:59:08,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027662722] [2022-12-14 09:59:08,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:59:08,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:59:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:59:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 09:59:10,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:59:10,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027662722] [2022-12-14 09:59:10,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027662722] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:59:10,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109455050] [2022-12-14 09:59:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:59:10,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:59:10,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:59:10,111 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:59:10,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73147e60-f617-490c-949e-22109f3cefe4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:59:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:59:10,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:59:10,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:59:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:59:10,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:59:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:59:10,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109455050] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:59:10,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1593647671] [2022-12-14 09:59:10,442 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-12-14 09:59:10,442 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:59:10,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:59:10,442 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:59:10,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:00:19,811 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-12-14 10:00:20,107 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 10:00:20,166 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 259 for LOIs [2022-12-14 10:00:20,237 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 246 for LOIs [2022-12-14 10:00:21,589 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 454 for LOIs [2022-12-14 10:00:21,922 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 220 for LOIs [2022-12-14 10:00:21,957 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 10:00:22,236 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 246 for LOIs