./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/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_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/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_0178e30b-d968-4d32-a586-391a4d06cbc1/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 7cf7ce6a809409f6f4ca5aec26ee44d6ee6c1bd8459af1b8b074817ec65bb1ea --- 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 09:22:20,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:22:20,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:22:20,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:22:20,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:22:20,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:22:20,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:22:20,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:22:20,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:22:20,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:22:20,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:22:20,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:22:20,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:22:20,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:22:20,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:22:20,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:22:20,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:22:20,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:22:20,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:22:20,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:22:20,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:22:20,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:22:20,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:22:20,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:22:20,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:22:20,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:22:20,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:22:20,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:22:20,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:22:20,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:22:20,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:22:20,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:22:20,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:22:20,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:22:20,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:22:20,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:22:20,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:22:20,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:22:20,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:22:20,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:22:20,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:22:20,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:22:20,821 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:22:20,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:22:20,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:22:20,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:22:20,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:22:20,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:22:20,822 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:22:20,822 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:22:20,822 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:22:20,822 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:22:20,822 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:22:20,823 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:22:20,823 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:22:20,823 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:22:20,823 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:22:20,823 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:22:20,823 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:22:20,823 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:22:20,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:22:20,824 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:22:20,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:22:20,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:22:20,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:22:20,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:22:20,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:22:20,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:22:20,825 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:22:20,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:22:20,825 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:22:20,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:22:20,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:22:20,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:22:20,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:22:20,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:22:20,826 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:22:20,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:22:20,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:22:20,827 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:22:20,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:22:20,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:22:20,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:22:20,827 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_0178e30b-d968-4d32-a586-391a4d06cbc1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cf7ce6a809409f6f4ca5aec26ee44d6ee6c1bd8459af1b8b074817ec65bb1ea [2022-12-14 09:22:21,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:22:21,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:22:21,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:22:21,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:22:21,046 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:22:21,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product21.cil.c [2022-12-14 09:22:23,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:22:23,840 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:22:23,841 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/sv-benchmarks/c/product-lines/email_spec6_product21.cil.c [2022-12-14 09:22:23,854 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/data/71fb809ee/cb1014d4586b48cb964c63ed2ebcea3f/FLAG3276015d7 [2022-12-14 09:22:23,866 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/data/71fb809ee/cb1014d4586b48cb964c63ed2ebcea3f [2022-12-14 09:22:23,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:22:23,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:22:23,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:22:23,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:22:23,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:22:23,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:22:23" (1/1) ... [2022-12-14 09:22:23,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89d817a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:23, skipping insertion in model container [2022-12-14 09:22:23,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:22:23" (1/1) ... [2022-12-14 09:22:23,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:22:23,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:22:24,059 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,062 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,103 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,108 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,108 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,110 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,119 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,202 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,203 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,205 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,228 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_0178e30b-d968-4d32-a586-391a4d06cbc1/sv-benchmarks/c/product-lines/email_spec6_product21.cil.c[54302,54315] [2022-12-14 09:22:24,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:22:24,268 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:22:24,282 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,284 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,290 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,293 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,293 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,295 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,300 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,330 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,331 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,334 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:22:24,345 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_0178e30b-d968-4d32-a586-391a4d06cbc1/sv-benchmarks/c/product-lines/email_spec6_product21.cil.c[54302,54315] [2022-12-14 09:22:24,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:22:24,385 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:22:24,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24 WrapperNode [2022-12-14 09:22:24,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:22:24,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:22:24,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:22:24,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:22:24,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,463 INFO L138 Inliner]: procedures = 129, calls = 222, calls flagged for inlining = 56, calls inlined = 53, statements flattened = 1047 [2022-12-14 09:22:24,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:22:24,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:22:24,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:22:24,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:22:24,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,514 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:22:24,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:22:24,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:22:24,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:22:24,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (1/1) ... [2022-12-14 09:22:24,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:22:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:22:24,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:22:24,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:22:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 09:22:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 09:22:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 09:22:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 09:22:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 09:22:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 09:22:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 09:22:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 09:22:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 09:22:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 09:22:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 09:22:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 09:22:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 09:22:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 09:22:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 09:22:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 09:22:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 09:22:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 09:22:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 09:22:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 09:22:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 09:22:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 09:22:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 09:22:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:22:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 09:22:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 09:22:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 09:22:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 09:22:24,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 09:22:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 09:22:24,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 09:22:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 09:22:24,592 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 09:22:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 09:22:24,592 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 09:22:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 09:22:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 09:22:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 09:22:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 09:22:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 09:22:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 09:22:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 09:22:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 09:22:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 09:22:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:22:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 09:22:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 09:22:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 09:22:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 09:22:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:22:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:22:24,763 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:22:24,764 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:22:25,351 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:22:25,685 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:22:25,685 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:22:25,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:22:25 BoogieIcfgContainer [2022-12-14 09:22:25,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:22:25,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:22:25,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:22:25,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:22:25,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:22:23" (1/3) ... [2022-12-14 09:22:25,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efc2a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:22:25, skipping insertion in model container [2022-12-14 09:22:25,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:24" (2/3) ... [2022-12-14 09:22:25,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efc2a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:22:25, skipping insertion in model container [2022-12-14 09:22:25,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:22:25" (3/3) ... [2022-12-14 09:22:25,693 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product21.cil.c [2022-12-14 09:22:25,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:22:25,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:22:25,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:22:25,750 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;@7c89ca1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:22:25,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:22:25,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 111 states have (on average 1.3153153153153154) internal successors, (146), 116 states have internal predecessors, (146), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-14 09:22:25,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 09:22:25,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:22:25,764 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:22:25,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:22:25,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:22:25,768 INFO L85 PathProgramCache]: Analyzing trace with hash -987555556, now seen corresponding path program 1 times [2022-12-14 09:22:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:22:25,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595608419] [2022-12-14 09:22:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:22:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:22:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:22:26,020 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:22:26,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:22:26,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595608419] [2022-12-14 09:22:26,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595608419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:22:26,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:22:26,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:22:26,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592471257] [2022-12-14 09:22:26,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:22:26,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:22:26,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:22:26,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:22:26,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:22:26,049 INFO L87 Difference]: Start difference. First operand has 197 states, 111 states have (on average 1.3153153153153154) internal successors, (146), 116 states have internal predecessors, (146), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:22:26,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:22:26,171 INFO L93 Difference]: Finished difference Result 302 states and 407 transitions. [2022-12-14 09:22:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:22:26,173 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 79 [2022-12-14 09:22:26,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:22:26,185 INFO L225 Difference]: With dead ends: 302 [2022-12-14 09:22:26,185 INFO L226 Difference]: Without dead ends: 194 [2022-12-14 09:22:26,189 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 09:22:26,192 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:22:26,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:22:26,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-12-14 09:22:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2022-12-14 09:22:26,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 109 states have (on average 1.2844036697247707) internal successors, (140), 113 states have internal predecessors, (140), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 09:22:26,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 261 transitions. [2022-12-14 09:22:26,233 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 261 transitions. Word has length 79 [2022-12-14 09:22:26,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:22:26,234 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 261 transitions. [2022-12-14 09:22:26,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:22:26,234 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 261 transitions. [2022-12-14 09:22:26,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 09:22:26,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:22:26,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:22:26,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:22:26,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:22:26,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:22:26,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1256831284, now seen corresponding path program 1 times [2022-12-14 09:22:26,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:22:26,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795348159] [2022-12-14 09:22:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:22:26,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:22:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:22:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:22:26,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:22:26,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795348159] [2022-12-14 09:22:26,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795348159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:22:26,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:22:26,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:22:26,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935162930] [2022-12-14 09:22:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:22:26,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:22:26,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:22:26,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:22:26,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:22:26,379 INFO L87 Difference]: Start difference. First operand 194 states and 261 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:22:26,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:22:26,488 INFO L93 Difference]: Finished difference Result 298 states and 392 transitions. [2022-12-14 09:22:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:22:26,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 80 [2022-12-14 09:22:26,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:22:26,491 INFO L225 Difference]: With dead ends: 298 [2022-12-14 09:22:26,491 INFO L226 Difference]: Without dead ends: 196 [2022-12-14 09:22:26,492 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 09:22:26,494 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:22:26,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 449 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:22:26,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-12-14 09:22:26,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-12-14 09:22:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 115 states have internal predecessors, (142), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 09:22:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 263 transitions. [2022-12-14 09:22:26,511 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 263 transitions. Word has length 80 [2022-12-14 09:22:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:22:26,512 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 263 transitions. [2022-12-14 09:22:26,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:22:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 263 transitions. [2022-12-14 09:22:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 09:22:26,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:22:26,515 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] [2022-12-14 09:22:26,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:22:26,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:22:26,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:22:26,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1712689393, now seen corresponding path program 1 times [2022-12-14 09:22:26,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:22:26,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603785255] [2022-12-14 09:22:26,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:22:26,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:22:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:22:26,615 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:22:26,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:22:26,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603785255] [2022-12-14 09:22:26,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603785255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:22:26,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:22:26,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:22:26,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539002280] [2022-12-14 09:22:26,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:22:26,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:22:26,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:22:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:22:26,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:22:26,618 INFO L87 Difference]: Start difference. First operand 196 states and 263 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:22:26,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:22:26,713 INFO L93 Difference]: Finished difference Result 427 states and 593 transitions. [2022-12-14 09:22:26,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:22:26,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-12-14 09:22:26,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:22:26,717 INFO L225 Difference]: With dead ends: 427 [2022-12-14 09:22:26,717 INFO L226 Difference]: Without dead ends: 249 [2022-12-14 09:22:26,719 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 09:22:26,720 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 59 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:22:26,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 466 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:22:26,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-12-14 09:22:26,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 244. [2022-12-14 09:22:26,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 145 states have (on average 1.3586206896551725) internal successors, (197), 149 states have internal predecessors, (197), 75 states have call successors, (75), 23 states have call predecessors, (75), 23 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-12-14 09:22:26,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 346 transitions. [2022-12-14 09:22:26,736 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 346 transitions. Word has length 85 [2022-12-14 09:22:26,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:22:26,736 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 346 transitions. [2022-12-14 09:22:26,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 09:22:26,736 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 346 transitions. [2022-12-14 09:22:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 09:22:26,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:22:26,738 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] [2022-12-14 09:22:26,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:22:26,738 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:22:26,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:22:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash -432333659, now seen corresponding path program 1 times [2022-12-14 09:22:26,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:22:26,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326762458] [2022-12-14 09:22:26,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:22:26,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:22:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:22:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:22:26,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:22:26,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326762458] [2022-12-14 09:22:26,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326762458] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:22:26,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200811078] [2022-12-14 09:22:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:22:26,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:22:26,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:22:26,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:22:26,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:22:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:22:27,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:22:27,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:22:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:22:27,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:22:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:22:27,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200811078] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:22:27,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1359610296] [2022-12-14 09:22:27,230 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 09:22:27,230 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:22:27,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:22:27,239 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:22:27,240 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:22:55,458 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-12-14 09:22:55,753 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 474 for LOIs [2022-12-14 09:23:24,166 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 454 for LOIs [2022-12-14 09:23:24,456 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:23:24,749 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 472 for LOIs [2022-12-14 09:23:28,333 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 267 for LOIs [2022-12-14 09:23:36,624 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 241 for LOIs [2022-12-14 09:23:36,660 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 456 for LOIs [2022-12-14 09:23:37,286 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 245 for LOIs [2022-12-14 09:23:37,323 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 442 for LOIs [2022-12-14 09:23:37,601 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:25:36,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1359610296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:36,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:25:36,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [4, 4, 4] total 57 [2022-12-14 09:25:36,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267967728] [2022-12-14 09:25:36,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:36,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-14 09:25:36,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:36,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-14 09:25:36,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=3037, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 09:25:36,216 INFO L87 Difference]: Start difference. First operand 244 states and 346 transitions. Second operand has 52 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 31 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 09:26:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:26:07,722 INFO L93 Difference]: Finished difference Result 588 states and 868 transitions. [2022-12-14 09:26:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-14 09:26:07,724 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 31 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 86 [2022-12-14 09:26:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:26:07,726 INFO L225 Difference]: With dead ends: 588 [2022-12-14 09:26:07,726 INFO L226 Difference]: Without dead ends: 362 [2022-12-14 09:26:07,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 130.4s TimeCoverageRelationStatistics Valid=191, Invalid=3715, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 09:26:07,728 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 87 mSDsluCounter, 6111 mSDsCounter, 0 mSdLazyCounter, 7051 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 6358 SdHoareTripleChecker+Invalid, 7066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 7051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:26:07,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 6358 Invalid, 7066 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 7051 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2022-12-14 09:26:07,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-12-14 09:26:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 320. [2022-12-14 09:26:07,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 200 states have (on average 1.345) internal successors, (269), 205 states have internal predecessors, (269), 89 states have call successors, (89), 32 states have call predecessors, (89), 30 states have return successors, (89), 84 states have call predecessors, (89), 88 states have call successors, (89) [2022-12-14 09:26:07,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 447 transitions. [2022-12-14 09:26:07,829 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 447 transitions. Word has length 86 [2022-12-14 09:26:07,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:26:07,829 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 447 transitions. [2022-12-14 09:26:07,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 31 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 09:26:07,829 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 447 transitions. [2022-12-14 09:26:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 09:26:07,831 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:26:07,831 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 09:26:07,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:26:08,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:26:08,034 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:26:08,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:26:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1204441468, now seen corresponding path program 1 times [2022-12-14 09:26:08,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:26:08,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610846602] [2022-12-14 09:26:08,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:26:08,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:26:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:26:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 09:26:08,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:26:08,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610846602] [2022-12-14 09:26:08,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610846602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:26:08,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:26:08,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:26:08,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759376762] [2022-12-14 09:26:08,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:26:08,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:26:08,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:26:08,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:26:08,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:26:08,132 INFO L87 Difference]: Start difference. First operand 320 states and 447 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 09:26:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:26:08,419 INFO L93 Difference]: Finished difference Result 742 states and 1074 transitions. [2022-12-14 09:26:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:26:08,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2022-12-14 09:26:08,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:26:08,421 INFO L225 Difference]: With dead ends: 742 [2022-12-14 09:26:08,421 INFO L226 Difference]: Without dead ends: 448 [2022-12-14 09:26:08,422 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 09:26:08,423 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 57 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:26:08,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 476 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:26:08,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-12-14 09:26:08,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 441. [2022-12-14 09:26:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 290 states have (on average 1.410344827586207) internal successors, (409), 295 states have internal predecessors, (409), 120 states have call successors, (120), 32 states have call predecessors, (120), 30 states have return successors, (120), 115 states have call predecessors, (120), 119 states have call successors, (120) [2022-12-14 09:26:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 649 transitions. [2022-12-14 09:26:08,547 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 649 transitions. Word has length 91 [2022-12-14 09:26:08,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:26:08,548 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 649 transitions. [2022-12-14 09:26:08,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 09:26:08,548 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 649 transitions. [2022-12-14 09:26:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 09:26:08,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:26:08,550 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 09:26:08,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:26:08,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:26:08,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:26:08,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1343828195, now seen corresponding path program 1 times [2022-12-14 09:26:08,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:26:08,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483642993] [2022-12-14 09:26:08,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:26:08,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:26:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:26:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 09:26:08,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:26:08,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483642993] [2022-12-14 09:26:08,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483642993] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:26:08,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747614119] [2022-12-14 09:26:08,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:26:08,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:26:08,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:26:08,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:26:08,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:26:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:26:08,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:26:08,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:26:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 09:26:08,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:26:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 09:26:08,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747614119] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:26:08,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1358305809] [2022-12-14 09:26:08,925 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 09:26:08,925 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:26:08,926 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:26:08,926 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:26:08,926 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:26:36,315 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:26:36,607 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 254 for LOIs [2022-12-14 09:26:38,104 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 09:26:38,140 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:26:38,424 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2022-12-14 09:26:39,081 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 263 for LOIs [2022-12-14 09:26:45,550 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 441 for LOIs [2022-12-14 09:26:46,124 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 09:26:47,885 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 241 for LOIs [2022-12-14 09:26:47,923 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 226 for LOIs [2022-12-14 09:26:47,959 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:27:36,054 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 472 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:28:24,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1358305809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:28:24,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:28:24,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [4, 4, 4] total 61 [2022-12-14 09:28:24,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283990811] [2022-12-14 09:28:24,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:28:24,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-14 09:28:24,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:28:24,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-14 09:28:24,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=3477, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 09:28:24,928 INFO L87 Difference]: Start difference. First operand 441 states and 649 transitions. Second operand has 56 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 34 states have internal predecessors, (47), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 09:29:11,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:11,102 INFO L93 Difference]: Finished difference Result 933 states and 1423 transitions. [2022-12-14 09:29:11,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-14 09:29:11,103 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 34 states have internal predecessors, (47), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 92 [2022-12-14 09:29:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:11,106 INFO L225 Difference]: With dead ends: 933 [2022-12-14 09:29:11,106 INFO L226 Difference]: Without dead ends: 607 [2022-12-14 09:29:11,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 217 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 120.1s TimeCoverageRelationStatistics Valid=308, Invalid=5242, Unknown=0, NotChecked=0, Total=5550 [2022-12-14 09:29:11,108 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 219 mSDsluCounter, 6296 mSDsCounter, 0 mSdLazyCounter, 8121 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 6537 SdHoareTripleChecker+Invalid, 8150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 8121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:11,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 6537 Invalid, 8150 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [29 Valid, 8121 Invalid, 0 Unknown, 0 Unchecked, 22.4s Time] [2022-12-14 09:29:11,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-12-14 09:29:11,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 457. [2022-12-14 09:29:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 302 states have (on average 1.413907284768212) internal successors, (427), 309 states have internal predecessors, (427), 123 states have call successors, (123), 33 states have call predecessors, (123), 31 states have return successors, (123), 116 states have call predecessors, (123), 122 states have call successors, (123) [2022-12-14 09:29:11,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 673 transitions. [2022-12-14 09:29:11,302 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 673 transitions. Word has length 92 [2022-12-14 09:29:11,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:11,303 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 673 transitions. [2022-12-14 09:29:11,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 34 states have internal predecessors, (47), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 09:29:11,303 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 673 transitions. [2022-12-14 09:29:11,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 09:29:11,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:11,304 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:11,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:29:11,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 09:29:11,506 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:29:11,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:11,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1456500755, now seen corresponding path program 1 times [2022-12-14 09:29:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:11,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626368667] [2022-12-14 09:29:11,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:11,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:29:11,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:11,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626368667] [2022-12-14 09:29:11,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626368667] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:29:11,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715737920] [2022-12-14 09:29:11,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:11,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:29:11,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:29:11,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:29:11,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:29:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:11,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:29:11,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:29:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:29:11,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:29:11,967 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:29:11,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715737920] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:29:11,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1443650013] [2022-12-14 09:29:11,970 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-12-14 09:29:11,970 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:29:11,970 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:29:11,971 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:29:11,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:30:15,266 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:30:15,555 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 09:30:15,833 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 09:30:16,133 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 232 for LOIs [2022-12-14 09:30:17,390 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 09:30:17,448 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 09:30:17,479 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:30:17,773 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 232 for LOIs [2022-12-14 09:30:18,322 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 241 for LOIs [2022-12-14 09:30:28,912 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 379 for LOIs [2022-12-14 09:30:29,193 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 221 for LOIs [2022-12-14 09:30:29,278 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 219 for LOIs [2022-12-14 09:30:29,310 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 202 for LOIs [2022-12-14 09:30:29,346 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:31:08,354 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 532 DAG size of output: 413 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:32:15,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1443650013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:32:15,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:32:15,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 09:32:15,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723153446] [2022-12-14 09:32:15,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:32:15,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 09:32:15,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:32:15,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 09:32:15,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=4235, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 09:32:15,533 INFO L87 Difference]: Start difference. First operand 457 states and 673 transitions. Second operand has 62 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 20 states have call successors, (22), 14 states have call predecessors, (22), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2022-12-14 09:32:58,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:32:58,737 INFO L93 Difference]: Finished difference Result 1028 states and 1554 transitions. [2022-12-14 09:32:58,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-12-14 09:32:58,738 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 20 states have call successors, (22), 14 states have call predecessors, (22), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) Word has length 95 [2022-12-14 09:32:58,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:32:58,740 INFO L225 Difference]: With dead ends: 1028 [2022-12-14 09:32:58,741 INFO L226 Difference]: Without dead ends: 702 [2022-12-14 09:32:58,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1281 ImplicationChecksByTransitivity, 124.0s TimeCoverageRelationStatistics Valid=258, Invalid=5748, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 09:32:58,743 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 231 mSDsluCounter, 6127 mSDsCounter, 0 mSdLazyCounter, 9264 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 6374 SdHoareTripleChecker+Invalid, 9290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 9264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:32:58,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 6374 Invalid, 9290 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [26 Valid, 9264 Invalid, 0 Unknown, 0 Unchecked, 24.5s Time] [2022-12-14 09:32:58,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-12-14 09:32:59,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 563. [2022-12-14 09:32:59,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 381 states have (on average 1.4015748031496063) internal successors, (534), 390 states have internal predecessors, (534), 141 states have call successors, (141), 44 states have call predecessors, (141), 40 states have return successors, (142), 130 states have call predecessors, (142), 140 states have call successors, (142) [2022-12-14 09:32:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 817 transitions. [2022-12-14 09:32:59,059 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 817 transitions. Word has length 95 [2022-12-14 09:32:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:32:59,059 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 817 transitions. [2022-12-14 09:32:59,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 20 states have call successors, (22), 14 states have call predecessors, (22), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2022-12-14 09:32:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 817 transitions. [2022-12-14 09:32:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 09:32:59,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:32:59,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:32:59,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 09:32:59,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:32:59,262 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:32:59,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:32:59,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2139564779, now seen corresponding path program 1 times [2022-12-14 09:32:59,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:32:59,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377202658] [2022-12-14 09:32:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:59,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:32:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:32:59,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:32:59,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377202658] [2022-12-14 09:32:59,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377202658] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:32:59,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156843243] [2022-12-14 09:32:59,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:59,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:32:59,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:32:59,422 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:32:59,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0178e30b-d968-4d32-a586-391a4d06cbc1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:32:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:59,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:32:59,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:32:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:32:59,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:32:59,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:32:59,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156843243] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:32:59,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [808536907] [2022-12-14 09:32:59,745 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2022-12-14 09:32:59,745 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:32:59,745 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:32:59,746 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:32:59,746 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:34:00,941 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-12-14 09:34:01,242 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 09:34:01,516 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 09:34:01,789 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 232 for LOIs [2022-12-14 09:34:03,023 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 09:34:03,078 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 09:34:03,108 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:34:03,396 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 234 for LOIs [2022-12-14 09:34:03,941 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 241 for LOIs [2022-12-14 09:34:24,440 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailEncryptionKey with input of size 212 for LOIs [2022-12-14 09:34:24,469 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 218 for LOIs [2022-12-14 09:34:24,501 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 212 for LOIs [2022-12-14 09:34:24,533 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 394 for LOIs [2022-12-14 09:34:24,949 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 422 for LOIs [2022-12-14 09:34:27,603 INFO L197 IcfgInterpreter]: Interpreting procedure isKeyPairValid with input of size 218 for LOIs [2022-12-14 09:34:27,637 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 214 for LOIs [2022-12-14 09:34:27,666 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 401 for LOIs [2022-12-14 09:34:27,878 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 204 for LOIs [2022-12-14 09:34:27,908 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:35:46,418 WARN L233 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 443 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)