./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/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_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/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_2807d20a-4a17-4871-9941-84569d1cffce/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 f84999f0f81e33d8d10765588f1ef0eb7f6e4b27122985f82c092211345428dc --- 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 10:36:26,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:36:26,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:36:26,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:36:26,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:36:26,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:36:26,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:36:26,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:36:26,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:36:26,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:36:26,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:36:26,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:36:26,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:36:26,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:36:26,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:36:26,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:36:26,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:36:26,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:36:26,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:36:26,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:36:26,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:36:26,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:36:26,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:36:26,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:36:26,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:36:26,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:36:26,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:36:26,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:36:26,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:36:26,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:36:26,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:36:26,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:36:26,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:36:26,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:36:26,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:36:26,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:36:26,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:36:26,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:36:26,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:36:26,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:36:26,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:36:26,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:36:26,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:36:26,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:36:26,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:36:26,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:36:26,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:36:26,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:36:26,962 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:36:26,962 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:36:26,962 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:36:26,962 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:36:26,962 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:36:26,963 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:36:26,963 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:36:26,963 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:36:26,963 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:36:26,963 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:36:26,964 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:36:26,964 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:36:26,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:36:26,965 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:36:26,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:36:26,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:36:26,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:36:26,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:36:26,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:36:26,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:36:26,966 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:36:26,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:36:26,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:36:26,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:36:26,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:36:26,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:36:26,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:36:26,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:36:26,967 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:36:26,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:36:26,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:36:26,968 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:36:26,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:36:26,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:36:26,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:36:26,968 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_2807d20a-4a17-4871-9941-84569d1cffce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f84999f0f81e33d8d10765588f1ef0eb7f6e4b27122985f82c092211345428dc [2022-12-14 10:36:27,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:36:27,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:36:27,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:36:27,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:36:27,200 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:36:27,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c [2022-12-14 10:36:29,845 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:36:30,041 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:36:30,041 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c [2022-12-14 10:36:30,053 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/data/baeae20f0/fb5f48221d8b42ecb5d06749751fc42d/FLAG18d332fb0 [2022-12-14 10:36:30,064 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/data/baeae20f0/fb5f48221d8b42ecb5d06749751fc42d [2022-12-14 10:36:30,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:36:30,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:36:30,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:36:30,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:36:30,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:36:30,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3075cbca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30, skipping insertion in model container [2022-12-14 10:36:30,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:36:30,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:36:30,269 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,273 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,275 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_2807d20a-4a17-4871-9941-84569d1cffce/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c[8301,8314] [2022-12-14 10:36:30,503 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,508 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,509 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,510 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,521 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,544 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,547 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:36:30,564 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:36:30,580 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,581 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,582 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_2807d20a-4a17-4871-9941-84569d1cffce/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c[8301,8314] [2022-12-14 10:36:30,640 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,643 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,643 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,644 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,650 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,654 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,655 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,657 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:36:30,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:36:30,688 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:36:30,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30 WrapperNode [2022-12-14 10:36:30,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:36:30,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:36:30,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:36:30,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:36:30,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,764 INFO L138 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1110 [2022-12-14 10:36:30,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:36:30,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:36:30,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:36:30,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:36:30,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,813 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:36:30,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:36:30,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:36:30,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:36:30,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (1/1) ... [2022-12-14 10:36:30,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:36:30,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:36:30,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:36:30,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:36:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 10:36:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 10:36:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 10:36:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 10:36:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 10:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 10:36:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 10:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 10:36:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 10:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 10:36:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 10:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 10:36:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 10:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 10:36:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 10:36:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 10:36:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 10:36:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 10:36:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 10:36:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 10:36:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 10:36:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 10:36:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 10:36:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 10:36:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 10:36:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 10:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 10:36:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 10:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 10:36:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:36:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 10:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 10:36:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 10:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 10:36:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 10:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 10:36:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 10:36:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 10:36:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 10:36:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 10:36:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 10:36:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 10:36:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 10:36:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 10:36:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 10:36:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 10:36:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 10:36:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 10:36:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 10:36:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 10:36:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 10:36:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 10:36:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 10:36:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 10:36:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:36:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 10:36:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 10:36:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 10:36:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 10:36:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:36:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:36:31,077 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:36:31,079 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:36:31,746 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:36:32,087 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:36:32,088 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 10:36:32,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:36:32 BoogieIcfgContainer [2022-12-14 10:36:32,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:36:32,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:36:32,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:36:32,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:36:32,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:36:30" (1/3) ... [2022-12-14 10:36:32,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4bae1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:36:32, skipping insertion in model container [2022-12-14 10:36:32,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:36:30" (2/3) ... [2022-12-14 10:36:32,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4bae1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:36:32, skipping insertion in model container [2022-12-14 10:36:32,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:36:32" (3/3) ... [2022-12-14 10:36:32,096 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product34.cil.c [2022-12-14 10:36:32,111 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:36:32,111 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:36:32,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:36:32,158 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;@4a84e000, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:36:32,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:36:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 10:36:32,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 10:36:32,171 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:36:32,172 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:36:32,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:36:32,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:36:32,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1790108541, now seen corresponding path program 1 times [2022-12-14 10:36:32,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:36:32,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818736773] [2022-12-14 10:36:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:36:32,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:36:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:36:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:36:32,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:36:32,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818736773] [2022-12-14 10:36:32,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818736773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:36:32,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:36:32,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:36:32,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889698111] [2022-12-14 10:36:32,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:36:32,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:36:32,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:36:32,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:36:32,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:36:32,436 INFO L87 Difference]: Start difference. First operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 10:36:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:36:32,569 INFO L93 Difference]: Finished difference Result 370 states and 491 transitions. [2022-12-14 10:36:32,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:36:32,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 10:36:32,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:36:32,580 INFO L225 Difference]: With dead ends: 370 [2022-12-14 10:36:32,581 INFO L226 Difference]: Without dead ends: 228 [2022-12-14 10:36:32,584 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 10:36:32,587 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:36:32,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:36:32,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-12-14 10:36:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-12-14 10:36:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 128 states have (on average 1.265625) internal successors, (162), 132 states have internal predecessors, (162), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 10:36:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 303 transitions. [2022-12-14 10:36:32,630 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 303 transitions. Word has length 71 [2022-12-14 10:36:32,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:36:32,631 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 303 transitions. [2022-12-14 10:36:32,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 10:36:32,632 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 303 transitions. [2022-12-14 10:36:32,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 10:36:32,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:36:32,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:36:32,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:36:32,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:36:32,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:36:32,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1713213612, now seen corresponding path program 1 times [2022-12-14 10:36:32,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:36:32,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977045600] [2022-12-14 10:36:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:36:32,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:36:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:36:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:36:32,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:36:32,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977045600] [2022-12-14 10:36:32,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977045600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:36:32,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:36:32,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:36:32,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345705227] [2022-12-14 10:36:32,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:36:32,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:36:32,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:36:32,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:36:32,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:36:32,810 INFO L87 Difference]: Start difference. First operand 228 states and 303 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 10:36:32,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:36:32,941 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2022-12-14 10:36:32,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:36:32,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 10:36:32,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:36:32,946 INFO L225 Difference]: With dead ends: 366 [2022-12-14 10:36:32,946 INFO L226 Difference]: Without dead ends: 230 [2022-12-14 10:36:32,948 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 10:36:32,949 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:36:32,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:36:32,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-12-14 10:36:32,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-12-14 10:36:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 10:36:32,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 305 transitions. [2022-12-14 10:36:32,967 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 305 transitions. Word has length 72 [2022-12-14 10:36:32,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:36:32,968 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 305 transitions. [2022-12-14 10:36:32,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 10:36:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 305 transitions. [2022-12-14 10:36:32,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 10:36:32,970 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:36:32,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:36:32,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:36:32,971 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:36:32,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:36:32,971 INFO L85 PathProgramCache]: Analyzing trace with hash -356939717, now seen corresponding path program 1 times [2022-12-14 10:36:32,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:36:32,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147722607] [2022-12-14 10:36:32,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:36:32,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:36:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:36:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:36:33,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:36:33,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147722607] [2022-12-14 10:36:33,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147722607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:36:33,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:36:33,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:36:33,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824502481] [2022-12-14 10:36:33,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:36:33,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:36:33,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:36:33,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:36:33,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:36:33,051 INFO L87 Difference]: Start difference. First operand 230 states and 305 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 10:36:33,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:36:33,174 INFO L93 Difference]: Finished difference Result 495 states and 677 transitions. [2022-12-14 10:36:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:36:33,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 10:36:33,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:36:33,177 INFO L225 Difference]: With dead ends: 495 [2022-12-14 10:36:33,177 INFO L226 Difference]: Without dead ends: 283 [2022-12-14 10:36:33,178 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 10:36:33,179 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 59 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:36:33,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 529 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:36:33,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-12-14 10:36:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2022-12-14 10:36:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 164 states have (on average 1.3353658536585367) internal successors, (219), 168 states have internal predecessors, (219), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2022-12-14 10:36:33,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 388 transitions. [2022-12-14 10:36:33,199 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 388 transitions. Word has length 77 [2022-12-14 10:36:33,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:36:33,199 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 388 transitions. [2022-12-14 10:36:33,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 10:36:33,199 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 388 transitions. [2022-12-14 10:36:33,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 10:36:33,201 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:36:33,202 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] [2022-12-14 10:36:33,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:36:33,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:36:33,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:36:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1280767607, now seen corresponding path program 1 times [2022-12-14 10:36:33,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:36:33,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76430604] [2022-12-14 10:36:33,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:36:33,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:36:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:36:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:36:33,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:36:33,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76430604] [2022-12-14 10:36:33,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76430604] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:36:33,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79404224] [2022-12-14 10:36:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:36:33,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:36:33,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:36:33,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:36:33,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:36:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:36:33,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:36:33,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:36:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:36:33,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:36:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:36:33,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79404224] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:36:33,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [548282877] [2022-12-14 10:36:33,733 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 10:36:33,734 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:36:33,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:36:33,741 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:36:33,742 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:36:54,521 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 10:36:54,806 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 268 for LOIs [2022-12-14 10:36:56,579 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 10:36:56,613 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:36:56,902 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 270 for LOIs [2022-12-14 10:36:59,589 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-12-14 10:36:59,622 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 279 for LOIs [2022-12-14 10:37:05,383 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-12-14 10:37:05,448 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 246 for LOIs [2022-12-14 10:37:05,486 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-12-14 10:37:09,962 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-12-14 10:37:10,006 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:37:52,286 WARN L233 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 583 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:38:40,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [548282877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:38:40,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:38:40,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 10:38:40,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734180333] [2022-12-14 10:38:40,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:38:40,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 10:38:40,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:38:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 10:38:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=3266, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 10:38:40,862 INFO L87 Difference]: Start difference. First operand 278 states and 388 transitions. Second operand has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 10:39:15,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:39:15,928 INFO L93 Difference]: Finished difference Result 645 states and 932 transitions. [2022-12-14 10:39:15,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 10:39:15,929 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 78 [2022-12-14 10:39:15,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:39:15,931 INFO L225 Difference]: With dead ends: 645 [2022-12-14 10:39:15,931 INFO L226 Difference]: Without dead ends: 385 [2022-12-14 10:39:15,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 105.6s TimeCoverageRelationStatistics Valid=214, Invalid=4342, Unknown=0, NotChecked=0, Total=4556 [2022-12-14 10:39:15,933 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 137 mSDsluCounter, 5918 mSDsCounter, 0 mSdLazyCounter, 7026 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 6194 SdHoareTripleChecker+Invalid, 7048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 7026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:39:15,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 6194 Invalid, 7048 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [22 Valid, 7026 Invalid, 0 Unknown, 0 Unchecked, 19.9s Time] [2022-12-14 10:39:15,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-12-14 10:39:16,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 340. [2022-12-14 10:39:16,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 209 states have (on average 1.325358851674641) internal successors, (277), 213 states have internal predecessors, (277), 95 states have call successors, (95), 38 states have call predecessors, (95), 35 states have return successors, (94), 90 states have call predecessors, (94), 94 states have call successors, (94) [2022-12-14 10:39:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 466 transitions. [2022-12-14 10:39:16,024 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 466 transitions. Word has length 78 [2022-12-14 10:39:16,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:39:16,025 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 466 transitions. [2022-12-14 10:39:16,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 10:39:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 466 transitions. [2022-12-14 10:39:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 10:39:16,027 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:39:16,027 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:39:16,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:39:16,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:39:16,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:39:16,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:39:16,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1899610927, now seen corresponding path program 1 times [2022-12-14 10:39:16,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:39:16,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050997861] [2022-12-14 10:39:16,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:39:16,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:39:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:39:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:39:16,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:39:16,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050997861] [2022-12-14 10:39:16,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050997861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:39:16,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:39:16,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:39:16,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454699612] [2022-12-14 10:39:16,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:39:16,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:39:16,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:39:16,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:39:16,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:39:16,331 INFO L87 Difference]: Start difference. First operand 340 states and 466 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:39:16,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:39:16,586 INFO L93 Difference]: Finished difference Result 782 states and 1112 transitions. [2022-12-14 10:39:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:39:16,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-12-14 10:39:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:39:16,590 INFO L225 Difference]: With dead ends: 782 [2022-12-14 10:39:16,590 INFO L226 Difference]: Without dead ends: 468 [2022-12-14 10:39:16,591 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 10:39:16,592 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 57 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:39:16,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 544 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:39:16,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-12-14 10:39:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 461. [2022-12-14 10:39:16,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 299 states have (on average 1.394648829431438) internal successors, (417), 303 states have internal predecessors, (417), 126 states have call successors, (126), 38 states have call predecessors, (126), 35 states have return successors, (125), 121 states have call predecessors, (125), 125 states have call successors, (125) [2022-12-14 10:39:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 668 transitions. [2022-12-14 10:39:16,707 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 668 transitions. Word has length 83 [2022-12-14 10:39:16,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:39:16,708 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 668 transitions. [2022-12-14 10:39:16,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:39:16,708 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 668 transitions. [2022-12-14 10:39:16,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 10:39:16,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:39:16,710 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:39:16,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:39:16,710 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:39:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:39:16,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2113422192, now seen corresponding path program 1 times [2022-12-14 10:39:16,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:39:16,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198548832] [2022-12-14 10:39:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:39:16,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:39:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:39:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:39:16,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:39:16,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198548832] [2022-12-14 10:39:16,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198548832] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:39:16,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374709633] [2022-12-14 10:39:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:39:16,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:39:16,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:39:16,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:39:16,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:39:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:39:17,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:39:17,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:39:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:39:17,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:39:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:39:17,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374709633] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:39:17,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1782233636] [2022-12-14 10:39:17,070 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 10:39:17,070 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:39:17,071 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:39:17,071 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:39:17,071 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:39:47,230 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:39:47,516 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-12-14 10:39:49,184 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-12-14 10:39:49,218 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 10:39:49,497 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 264 for LOIs [2022-12-14 10:39:52,109 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 222 for LOIs [2022-12-14 10:39:52,146 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 275 for LOIs [2022-12-14 10:39:58,593 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-12-14 10:39:58,658 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 242 for LOIs [2022-12-14 10:39:58,696 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 10:40:00,437 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs [2022-12-14 10:40:00,481 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:40:43,802 WARN L233 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 591 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:41:36,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1782233636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:41:36,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:41:36,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-12-14 10:41:36,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127038837] [2022-12-14 10:41:36,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:41:36,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-14 10:41:36,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:41:36,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-14 10:41:36,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=3726, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 10:41:36,356 INFO L87 Difference]: Start difference. First operand 461 states and 668 transitions. Second operand has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 10:42:35,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:35,339 INFO L93 Difference]: Finished difference Result 976 states and 1464 transitions. [2022-12-14 10:42:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-14 10:42:35,340 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 84 [2022-12-14 10:42:35,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:35,343 INFO L225 Difference]: With dead ends: 976 [2022-12-14 10:42:35,343 INFO L226 Difference]: Without dead ends: 616 [2022-12-14 10:42:35,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1392 ImplicationChecksByTransitivity, 128.6s TimeCoverageRelationStatistics Valid=314, Invalid=6006, Unknown=0, NotChecked=0, Total=6320 [2022-12-14 10:42:35,345 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 301 mSDsluCounter, 7323 mSDsCounter, 0 mSdLazyCounter, 9195 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 7593 SdHoareTripleChecker+Invalid, 9243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 9195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:35,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 7593 Invalid, 9243 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [48 Valid, 9195 Invalid, 0 Unknown, 0 Unchecked, 25.6s Time] [2022-12-14 10:42:35,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-12-14 10:42:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 477. [2022-12-14 10:42:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 311 states have (on average 1.3987138263665595) internal successors, (435), 317 states have internal predecessors, (435), 129 states have call successors, (129), 39 states have call predecessors, (129), 36 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2022-12-14 10:42:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 692 transitions. [2022-12-14 10:42:35,517 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 692 transitions. Word has length 84 [2022-12-14 10:42:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:35,517 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 692 transitions. [2022-12-14 10:42:35,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 10:42:35,517 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 692 transitions. [2022-12-14 10:42:35,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 10:42:35,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:35,519 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:35,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:42:35,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:35,721 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:42:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1686887637, now seen corresponding path program 1 times [2022-12-14 10:42:35,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:35,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112244755] [2022-12-14 10:42:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:35,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:42:35,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:35,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112244755] [2022-12-14 10:42:35,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112244755] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:35,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165080269] [2022-12-14 10:42:35,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:35,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:35,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:35,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:35,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:42:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:36,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:42:36,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:42:36,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:42:36,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165080269] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:36,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [460986345] [2022-12-14 10:42:36,128 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 10:42:36,128 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:36,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:36,129 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:36,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:43:08,806 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:43:09,088 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 232 for LOIs [2022-12-14 10:43:09,144 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 233 for LOIs [2022-12-14 10:43:09,201 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 220 for LOIs [2022-12-14 10:43:09,258 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:43:09,549 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:43:56,690 WARN L233 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 636 DAG size of output: 513 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:44:08,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [460986345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:44:08,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:44:08,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 10:44:08,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104323976] [2022-12-14 10:44:08,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:44:08,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 10:44:08,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:44:08,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 10:44:08,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 10:44:08,982 INFO L87 Difference]: Start difference. First operand 477 states and 692 transitions. Second operand has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 10:44:15,688 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 610 DAG size of output: 416 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:44:31,079 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 624 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:44:40,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:44:40,774 INFO L93 Difference]: Finished difference Result 973 states and 1466 transitions. [2022-12-14 10:44:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 10:44:40,775 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2022-12-14 10:44:40,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:44:40,777 INFO L225 Difference]: With dead ends: 973 [2022-12-14 10:44:40,777 INFO L226 Difference]: Without dead ends: 613 [2022-12-14 10:44:40,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 78.4s TimeCoverageRelationStatistics Valid=163, Invalid=1477, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 10:44:40,779 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 164 mSDsluCounter, 4350 mSDsCounter, 0 mSdLazyCounter, 4198 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 4626 SdHoareTripleChecker+Invalid, 4216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:44:40,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 4626 Invalid, 4216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 4198 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2022-12-14 10:44:40,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-12-14 10:44:41,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 531. [2022-12-14 10:44:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 358 states have (on average 1.4022346368715084) internal successors, (502), 365 states have internal predecessors, (502), 133 states have call successors, (133), 42 states have call predecessors, (133), 39 states have return successors, (132), 125 states have call predecessors, (132), 132 states have call successors, (132) [2022-12-14 10:44:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 767 transitions. [2022-12-14 10:44:41,013 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 767 transitions. Word has length 87 [2022-12-14 10:44:41,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:44:41,013 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 767 transitions. [2022-12-14 10:44:41,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 10:44:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 767 transitions. [2022-12-14 10:44:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 10:44:41,015 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:44:41,015 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, 1, 1, 1, 1, 1, 1] [2022-12-14 10:44:41,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:44:41,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:44:41,215 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:44:41,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:44:41,216 INFO L85 PathProgramCache]: Analyzing trace with hash 156961372, now seen corresponding path program 1 times [2022-12-14 10:44:41,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:44:41,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640548635] [2022-12-14 10:44:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:44:41,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:44:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:44:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:44:41,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:44:41,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640548635] [2022-12-14 10:44:41,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640548635] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:44:41,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877468562] [2022-12-14 10:44:41,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:44:41,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:44:41,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:44:41,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:44:41,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:44:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:44:41,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:44:41,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:44:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:44:41,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:44:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:44:41,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877468562] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:44:41,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1905466749] [2022-12-14 10:44:41,612 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 10:44:41,612 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:44:41,612 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:44:41,612 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:44:41,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:45:39,054 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:45:39,334 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 271 for LOIs [2022-12-14 10:45:41,071 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-12-14 10:45:41,107 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:45:41,392 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 271 for LOIs [2022-12-14 10:45:44,033 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-12-14 10:45:44,068 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 282 for LOIs [2022-12-14 10:45:51,822 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 10:45:51,892 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 249 for LOIs [2022-12-14 10:45:51,932 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 10:45:56,445 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 257 for LOIs [2022-12-14 10:45:56,491 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:47:29,717 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 477 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:48:18,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1905466749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:48:18,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:48:18,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 10:48:18,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821872563] [2022-12-14 10:48:18,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:48:18,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 10:48:18,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:48:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 10:48:18,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=4206, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 10:48:18,876 INFO L87 Difference]: Start difference. First operand 531 states and 767 transitions. Second operand has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 10:49:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:43,171 INFO L93 Difference]: Finished difference Result 1078 states and 1596 transitions. [2022-12-14 10:49:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-12-14 10:49:43,171 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 86 [2022-12-14 10:49:43,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:43,174 INFO L225 Difference]: With dead ends: 1078 [2022-12-14 10:49:43,174 INFO L226 Difference]: Without dead ends: 718 [2022-12-14 10:49:43,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1791 ImplicationChecksByTransitivity, 196.9s TimeCoverageRelationStatistics Valid=515, Invalid=7495, Unknown=0, NotChecked=0, Total=8010 [2022-12-14 10:49:43,176 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 284 mSDsluCounter, 6809 mSDsCounter, 0 mSdLazyCounter, 9231 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 7075 SdHoareTripleChecker+Invalid, 9263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 9231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:43,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 7075 Invalid, 9263 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 9231 Invalid, 0 Unknown, 0 Unchecked, 28.8s Time] [2022-12-14 10:49:43,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-12-14 10:49:43,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 551. [2022-12-14 10:49:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 378 states have (on average 1.41005291005291) internal successors, (533), 385 states have internal predecessors, (533), 133 states have call successors, (133), 42 states have call predecessors, (133), 39 states have return successors, (132), 125 states have call predecessors, (132), 132 states have call successors, (132) [2022-12-14 10:49:43,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 798 transitions. [2022-12-14 10:49:43,659 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 798 transitions. Word has length 86 [2022-12-14 10:49:43,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:43,660 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 798 transitions. [2022-12-14 10:49:43,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 10:49:43,660 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 798 transitions. [2022-12-14 10:49:43,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 10:49:43,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:43,663 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:43,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 10:49:43,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:43,864 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:49:43,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash -351675866, now seen corresponding path program 1 times [2022-12-14 10:49:43,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:43,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132757538] [2022-12-14 10:49:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:43,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:44,102 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 10:49:44,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:44,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132757538] [2022-12-14 10:49:44,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132757538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:44,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:44,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:44,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116538058] [2022-12-14 10:49:44,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:44,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:49:44,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:44,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:49:44,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:49:44,105 INFO L87 Difference]: Start difference. First operand 551 states and 798 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:49:44,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:44,610 INFO L93 Difference]: Finished difference Result 730 states and 1018 transitions. [2022-12-14 10:49:44,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:49:44,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2022-12-14 10:49:44,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:44,612 INFO L225 Difference]: With dead ends: 730 [2022-12-14 10:49:44,612 INFO L226 Difference]: Without dead ends: 601 [2022-12-14 10:49:44,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 10:49:44,613 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 146 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 403 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 10:49:44,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 403 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:49:44,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-12-14 10:49:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 598. [2022-12-14 10:49:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 401 states have (on average 1.3915211970074812) internal successors, (558), 411 states have internal predecessors, (558), 147 states have call successors, (147), 54 states have call predecessors, (147), 49 states have return successors, (145), 135 states have call predecessors, (145), 145 states have call successors, (145) [2022-12-14 10:49:45,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 850 transitions. [2022-12-14 10:49:45,229 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 850 transitions. Word has length 89 [2022-12-14 10:49:45,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:45,230 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 850 transitions. [2022-12-14 10:49:45,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:49:45,230 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 850 transitions. [2022-12-14 10:49:45,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-14 10:49:45,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:45,234 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:45,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:49:45,234 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:49:45,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:45,235 INFO L85 PathProgramCache]: Analyzing trace with hash -602389390, now seen corresponding path program 1 times [2022-12-14 10:49:45,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:45,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795976477] [2022-12-14 10:49:45,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:45,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 10:49:45,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:45,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795976477] [2022-12-14 10:49:45,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795976477] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:49:45,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101563259] [2022-12-14 10:49:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:45,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:45,393 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:49:45,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807d20a-4a17-4871-9941-84569d1cffce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:49:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:45,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:49:45,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:49:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-12-14 10:49:45,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:49:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 10:49:45,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101563259] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:49:45,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [179235111] [2022-12-14 10:49:45,764 INFO L159 IcfgInterpreter]: Started Sifa with 94 locations of interest [2022-12-14 10:49:45,764 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:49:45,764 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:49:45,765 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:49:45,765 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:50:07,652 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 10:50:07,937 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 268 for LOIs [2022-12-14 10:50:10,493 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 10:50:10,528 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:50:10,805 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 551 for LOIs [2022-12-14 10:50:22,711 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 255 for LOIs