./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/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_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/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_e905638f-eb67-431a-a465-d8d576e77ff7/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 b949d09d593112e13964b4b5b0eef0c6cd05359df7437e0305220f7a663828f7 --- 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 08:23:32,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:23:32,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:23:32,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:23:32,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:23:32,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:23:32,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:23:32,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:23:32,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:23:32,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:23:32,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:23:32,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:23:32,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:23:32,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:23:32,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:23:32,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:23:32,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:23:32,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:23:32,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:23:32,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:23:32,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:23:32,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:23:32,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:23:32,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:23:32,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:23:32,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:23:32,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:23:32,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:23:32,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:23:32,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:23:32,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:23:32,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:23:32,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:23:32,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:23:32,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:23:32,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:23:32,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:23:32,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:23:32,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:23:32,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:23:32,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:23:32,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:23:32,914 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:23:32,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:23:32,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:23:32,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:23:32,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:23:32,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:23:32,915 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:23:32,915 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:23:32,915 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:23:32,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:23:32,916 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:23:32,916 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:23:32,916 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:23:32,916 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:23:32,916 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:23:32,917 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:23:32,917 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:23:32,917 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:23:32,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:23:32,918 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:23:32,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:23:32,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:23:32,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:23:32,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:23:32,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:23:32,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:23:32,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:23:32,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:23:32,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:23:32,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:23:32,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:23:32,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:23:32,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:23:32,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:23:32,920 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:23:32,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:23:32,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:23:32,921 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:23:32,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:23:32,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:23:32,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:23:32,921 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_e905638f-eb67-431a-a465-d8d576e77ff7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b949d09d593112e13964b4b5b0eef0c6cd05359df7437e0305220f7a663828f7 [2022-12-14 08:23:33,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:23:33,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:23:33,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:23:33,132 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:23:33,132 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:23:33,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product14.cil.c [2022-12-14 08:23:35,719 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:23:35,937 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:23:35,938 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/sv-benchmarks/c/product-lines/email_spec9_product14.cil.c [2022-12-14 08:23:35,949 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/data/55922069b/86b78b9933374b80a7d4909245fef8bd/FLAGa02ff03d8 [2022-12-14 08:23:36,279 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/data/55922069b/86b78b9933374b80a7d4909245fef8bd [2022-12-14 08:23:36,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:23:36,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:23:36,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:23:36,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:23:36,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:23:36,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ee72bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36, skipping insertion in model container [2022-12-14 08:23:36,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:23:36,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:23:36,537 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,547 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,556 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,559 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,560 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_e905638f-eb67-431a-a465-d8d576e77ff7/sv-benchmarks/c/product-lines/email_spec9_product14.cil.c[8145,8158] [2022-12-14 08:23:36,594 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,600 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,601 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,602 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:23:36,738 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:23:36,749 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,750 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,752 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,755 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,756 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,757 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_e905638f-eb67-431a-a465-d8d576e77ff7/sv-benchmarks/c/product-lines/email_spec9_product14.cil.c[8145,8158] [2022-12-14 08:23:36,758 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,759 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,760 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,761 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:23:36,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:23:36,844 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:23:36,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36 WrapperNode [2022-12-14 08:23:36,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:23:36,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:23:36,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:23:36,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:23:36,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,910 INFO L138 Inliner]: procedures = 126, calls = 210, calls flagged for inlining = 51, calls inlined = 43, statements flattened = 905 [2022-12-14 08:23:36,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:23:36,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:23:36,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:23:36,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:23:36,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:23:36,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:23:36,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:23:36,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:23:36,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (1/1) ... [2022-12-14 08:23:36,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:23:36,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:23:36,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:23:36,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:23:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 08:23:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 08:23:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 08:23:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 08:23:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 08:23:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 08:23:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 08:23:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 08:23:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 08:23:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 08:23:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 08:23:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 08:23:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 08:23:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 08:23:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 08:23:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 08:23:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 08:23:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 08:23:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 08:23:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 08:23:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 08:23:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:23:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 08:23:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 08:23:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 08:23:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 08:23:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 08:23:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 08:23:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 08:23:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 08:23:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 08:23:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 08:23:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 08:23:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 08:23:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 08:23:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 08:23:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 08:23:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 08:23:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 08:23:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 08:23:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:23:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 08:23:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 08:23:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 08:23:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 08:23:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:23:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:23:37,166 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:23:37,168 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:23:37,704 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:23:38,065 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:23:38,065 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:23:38,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:23:38 BoogieIcfgContainer [2022-12-14 08:23:38,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:23:38,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:23:38,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:23:38,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:23:38,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:23:36" (1/3) ... [2022-12-14 08:23:38,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73477bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:23:38, skipping insertion in model container [2022-12-14 08:23:38,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:23:36" (2/3) ... [2022-12-14 08:23:38,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73477bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:23:38, skipping insertion in model container [2022-12-14 08:23:38,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:23:38" (3/3) ... [2022-12-14 08:23:38,074 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product14.cil.c [2022-12-14 08:23:38,089 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:23:38,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:23:38,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:23:38,133 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;@4d80a2ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:23:38,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:23:38,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 08:23:38,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 08:23:38,146 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:23:38,147 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] [2022-12-14 08:23:38,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:23:38,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:23:38,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1389391781, now seen corresponding path program 1 times [2022-12-14 08:23:38,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:23:38,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42716891] [2022-12-14 08:23:38,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:38,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:23:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:23:38,363 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 08:23:38,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:23:38,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42716891] [2022-12-14 08:23:38,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42716891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:23:38,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:23:38,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:23:38,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360141691] [2022-12-14 08:23:38,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:23:38,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:23:38,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:23:38,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:23:38,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:23:38,392 INFO L87 Difference]: Start difference. First operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:23:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:23:38,497 INFO L93 Difference]: Finished difference Result 254 states and 343 transitions. [2022-12-14 08:23:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:23:38,500 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-12-14 08:23:38,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:23:38,510 INFO L225 Difference]: With dead ends: 254 [2022-12-14 08:23:38,510 INFO L226 Difference]: Without dead ends: 170 [2022-12-14 08:23:38,514 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 08:23:38,517 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:23:38,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:23:38,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-14 08:23:38,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-12-14 08:23:38,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 96 states have (on average 1.3125) internal successors, (126), 100 states have internal predecessors, (126), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 08:23:38,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2022-12-14 08:23:38,561 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 63 [2022-12-14 08:23:38,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:23:38,562 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2022-12-14 08:23:38,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:23:38,562 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2022-12-14 08:23:38,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 08:23:38,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:23:38,564 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] [2022-12-14 08:23:38,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:23:38,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:23:38,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:23:38,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1769309859, now seen corresponding path program 1 times [2022-12-14 08:23:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:23:38,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206108154] [2022-12-14 08:23:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:38,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:23:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:23:38,750 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 08:23:38,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:23:38,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206108154] [2022-12-14 08:23:38,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206108154] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:23:38,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:23:38,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:23:38,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286532820] [2022-12-14 08:23:38,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:23:38,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:23:38,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:23:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:23:38,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:23:38,752 INFO L87 Difference]: Start difference. First operand 170 states and 229 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:23:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:23:38,849 INFO L93 Difference]: Finished difference Result 250 states and 328 transitions. [2022-12-14 08:23:38,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:23:38,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-12-14 08:23:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:23:38,853 INFO L225 Difference]: With dead ends: 250 [2022-12-14 08:23:38,853 INFO L226 Difference]: Without dead ends: 172 [2022-12-14 08:23:38,854 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 08:23:38,856 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:23:38,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:23:38,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-12-14 08:23:38,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-12-14 08:23:38,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 102 states have internal predecessors, (128), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 08:23:38,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2022-12-14 08:23:38,878 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 64 [2022-12-14 08:23:38,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:23:38,878 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2022-12-14 08:23:38,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:23:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2022-12-14 08:23:38,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 08:23:38,883 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:23:38,883 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] [2022-12-14 08:23:38,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:23:38,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:23:38,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:23:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1194624006, now seen corresponding path program 1 times [2022-12-14 08:23:38,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:23:38,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143250363] [2022-12-14 08:23:38,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:38,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:23:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:23:38,968 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 08:23:38,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:23:38,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143250363] [2022-12-14 08:23:38,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143250363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:23:38,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:23:38,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:23:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184551456] [2022-12-14 08:23:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:23:38,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:23:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:23:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:23:38,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:23:38,971 INFO L87 Difference]: Start difference. First operand 172 states and 231 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:23:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:23:39,062 INFO L93 Difference]: Finished difference Result 379 states and 529 transitions. [2022-12-14 08:23:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:23:39,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-12-14 08:23:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:23:39,064 INFO L225 Difference]: With dead ends: 379 [2022-12-14 08:23:39,064 INFO L226 Difference]: Without dead ends: 225 [2022-12-14 08:23:39,064 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 08:23:39,065 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 59 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:23:39,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 416 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:23:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-12-14 08:23:39,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2022-12-14 08:23:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 136 states have internal predecessors, (183), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 08:23:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 314 transitions. [2022-12-14 08:23:39,079 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 314 transitions. Word has length 69 [2022-12-14 08:23:39,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:23:39,079 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 314 transitions. [2022-12-14 08:23:39,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:23:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 314 transitions. [2022-12-14 08:23:39,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 08:23:39,081 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:23:39,081 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] [2022-12-14 08:23:39,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:23:39,082 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:23:39,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:23:39,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1404603203, now seen corresponding path program 1 times [2022-12-14 08:23:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:23:39,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956124280] [2022-12-14 08:23:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:23:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:23:39,212 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 08:23:39,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:23:39,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956124280] [2022-12-14 08:23:39,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956124280] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:23:39,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003766810] [2022-12-14 08:23:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:39,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:23:39,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:23:39,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:23:39,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:23:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:23:39,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:23:39,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:23:39,486 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 08:23:39,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:23:39,543 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 08:23:39,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003766810] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:23:39,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [483609982] [2022-12-14 08:23:39,564 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-12-14 08:23:39,565 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:23:39,569 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:23:39,574 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:23:39,574 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:24:05,365 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:24:05,663 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 08:24:05,952 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:24:54,059 WARN L233 SmtUtils]: Spent 12.09s on a formula simplification. DAG size of input: 585 DAG size of output: 456 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:25:07,272 WARN L233 SmtUtils]: Spent 12.94s on a formula simplification. DAG size of input: 587 DAG size of output: 456 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:25:12,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [483609982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:25:12,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:25:12,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 08:25:12,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083310384] [2022-12-14 08:25:12,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:25:12,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 08:25:12,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:25:12,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 08:25:12,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-12-14 08:25:12,211 INFO L87 Difference]: Start difference. First operand 220 states and 314 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 08:25:20,303 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 583 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:25:28,742 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 582 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:25:34,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:25:34,410 INFO L93 Difference]: Finished difference Result 523 states and 796 transitions. [2022-12-14 08:25:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 08:25:34,410 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2022-12-14 08:25:34,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:25:34,415 INFO L225 Difference]: With dead ends: 523 [2022-12-14 08:25:34,415 INFO L226 Difference]: Without dead ends: 321 [2022-12-14 08:25:34,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 81.0s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2022-12-14 08:25:34,418 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 136 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:25:34,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 3159 Invalid, 2122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 08:25:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-12-14 08:25:34,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 243. [2022-12-14 08:25:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 158 states have internal predecessors, (216), 66 states have call successors, (66), 22 states have call predecessors, (66), 22 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 08:25:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 347 transitions. [2022-12-14 08:25:34,555 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 347 transitions. Word has length 70 [2022-12-14 08:25:34,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:25:34,556 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 347 transitions. [2022-12-14 08:25:34,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 08:25:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 347 transitions. [2022-12-14 08:25:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 08:25:34,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:25:34,561 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] [2022-12-14 08:25:34,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:25:34,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:25:34,762 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:25:34,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:25:34,763 INFO L85 PathProgramCache]: Analyzing trace with hash -163550840, now seen corresponding path program 1 times [2022-12-14 08:25:34,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:25:34,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835636377] [2022-12-14 08:25:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:34,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:25:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:34,849 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 08:25:34,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:25:34,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835636377] [2022-12-14 08:25:34,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835636377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:25:34,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:25:34,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:25:34,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934051485] [2022-12-14 08:25:34,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:25:34,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:25:34,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:25:34,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:25:34,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:25:34,852 INFO L87 Difference]: Start difference. First operand 243 states and 347 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 08:25:35,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:25:35,081 INFO L93 Difference]: Finished difference Result 589 states and 874 transitions. [2022-12-14 08:25:35,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:25:35,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-12-14 08:25:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:25:35,083 INFO L225 Difference]: With dead ends: 589 [2022-12-14 08:25:35,084 INFO L226 Difference]: Without dead ends: 370 [2022-12-14 08:25:35,084 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 08:25:35,085 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 57 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:25:35,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 419 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:25:35,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-12-14 08:25:35,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 365. [2022-12-14 08:25:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 245 states have (on average 1.453061224489796) internal successors, (356), 249 states have internal predecessors, (356), 97 states have call successors, (97), 22 states have call predecessors, (97), 22 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-14 08:25:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 549 transitions. [2022-12-14 08:25:35,198 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 549 transitions. Word has length 75 [2022-12-14 08:25:35,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:25:35,199 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 549 transitions. [2022-12-14 08:25:35,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 08:25:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 549 transitions. [2022-12-14 08:25:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 08:25:35,200 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:25:35,200 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] [2022-12-14 08:25:35,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:25:35,201 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:25:35,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:25:35,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1113168498, now seen corresponding path program 1 times [2022-12-14 08:25:35,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:25:35,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086836901] [2022-12-14 08:25:35,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:35,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:25:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:35,302 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 08:25:35,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:25:35,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086836901] [2022-12-14 08:25:35,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086836901] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:25:35,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998515953] [2022-12-14 08:25:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:35,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:25:35,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:25:35,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:25:35,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:25:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:35,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:25:35,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:25:35,512 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 08:25:35,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:25:35,551 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 08:25:35,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998515953] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:25:35,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2134367633] [2022-12-14 08:25:35,553 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 08:25:35,554 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:25:35,554 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:25:35,554 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:25:35,554 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:26:11,801 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:26:12,128 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 08:26:12,402 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 249 for LOIs [2022-12-14 08:26:13,925 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2022-12-14 08:26:13,960 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 251 for LOIs [2022-12-14 08:26:14,595 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 251 for LOIs [2022-12-14 08:26:23,292 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 233 for LOIs [2022-12-14 08:26:23,325 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 442 for LOIs [2022-12-14 08:26:23,915 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 227 for LOIs [2022-12-14 08:26:23,950 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:27:13,659 WARN L233 SmtUtils]: Spent 12.42s on a formula simplification. DAG size of input: 591 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:27:20,076 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 593 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:28:00,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2134367633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:28:00,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:28:00,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-12-14 08:28:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975433205] [2022-12-14 08:28:00,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:28:00,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 08:28:00,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:28:00,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 08:28:00,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=2827, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 08:28:00,950 INFO L87 Difference]: Start difference. First operand 365 states and 549 transitions. Second operand has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:28:13,347 WARN L233 SmtUtils]: Spent 9.98s on a formula simplification. DAG size of input: 556 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:28:35,002 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 590 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:28:41,407 WARN L233 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 596 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:29:09,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:29:09,915 INFO L93 Difference]: Finished difference Result 864 states and 1355 transitions. [2022-12-14 08:29:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 08:29:09,916 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 76 [2022-12-14 08:29:09,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:29:09,918 INFO L225 Difference]: With dead ends: 864 [2022-12-14 08:29:09,918 INFO L226 Difference]: Without dead ends: 562 [2022-12-14 08:29:09,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 175 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 145.2s TimeCoverageRelationStatistics Valid=319, Invalid=5381, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 08:29:09,920 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 296 mSDsluCounter, 4858 mSDsCounter, 0 mSdLazyCounter, 7204 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 5069 SdHoareTripleChecker+Invalid, 7247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 7204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:29:09,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 5069 Invalid, 7247 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [43 Valid, 7204 Invalid, 0 Unknown, 0 Unchecked, 20.1s Time] [2022-12-14 08:29:09,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-12-14 08:29:10,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 443. [2022-12-14 08:29:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 307 states have (on average 1.4657980456026058) internal successors, (450), 313 states have internal predecessors, (450), 108 states have call successors, (108), 30 states have call predecessors, (108), 27 states have return successors, (107), 101 states have call predecessors, (107), 107 states have call successors, (107) [2022-12-14 08:29:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 665 transitions. [2022-12-14 08:29:10,128 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 665 transitions. Word has length 76 [2022-12-14 08:29:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:29:10,128 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 665 transitions. [2022-12-14 08:29:10,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:29:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 665 transitions. [2022-12-14 08:29:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 08:29:10,130 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:29:10,130 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:29:10,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:29:10,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:29:10,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:29:10,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:29:10,333 INFO L85 PathProgramCache]: Analyzing trace with hash 880629515, now seen corresponding path program 1 times [2022-12-14 08:29:10,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:29:10,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247983589] [2022-12-14 08:29:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:29:10,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:29:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:29:10,469 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 08:29:10,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:29:10,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247983589] [2022-12-14 08:29:10,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247983589] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:29:10,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102555419] [2022-12-14 08:29:10,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:29:10,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:29:10,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:29:10,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:29:10,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:29:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:29:10,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:29:10,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:29:10,708 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 08:29:10,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:29:10,748 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 08:29:10,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102555419] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:29:10,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [401397522] [2022-12-14 08:29:10,752 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 08:29:10,752 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:29:10,752 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:29:10,752 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:29:10,753 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:29:59,598 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:29:59,874 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2022-12-14 08:29:59,933 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 257 for LOIs [2022-12-14 08:30:00,002 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-12-14 08:30:00,313 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 08:30:00,602 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:30:47,366 WARN L233 SmtUtils]: Spent 11.83s on a formula simplification. DAG size of input: 640 DAG size of output: 517 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:30:53,866 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 642 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:31:11,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [401397522] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:11,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:31:11,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 08:31:11,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409823320] [2022-12-14 08:31:11,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:11,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 08:31:11,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:11,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 08:31:11,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 08:31:11,330 INFO L87 Difference]: Start difference. First operand 443 states and 665 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 08:31:29,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:29,382 INFO L93 Difference]: Finished difference Result 912 states and 1426 transitions. [2022-12-14 08:31:29,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 08:31:29,383 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2022-12-14 08:31:29,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:29,385 INFO L225 Difference]: With dead ends: 912 [2022-12-14 08:31:29,385 INFO L226 Difference]: Without dead ends: 610 [2022-12-14 08:31:29,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 77.8s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 08:31:29,386 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 141 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 3396 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:29,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 3633 Invalid, 3406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3396 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 08:31:29,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-12-14 08:31:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 516. [2022-12-14 08:31:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 372 states have (on average 1.4865591397849462) internal successors, (553), 380 states have internal predecessors, (553), 113 states have call successors, (113), 33 states have call predecessors, (113), 30 states have return successors, (112), 104 states have call predecessors, (112), 112 states have call successors, (112) [2022-12-14 08:31:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 778 transitions. [2022-12-14 08:31:29,692 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 778 transitions. Word has length 79 [2022-12-14 08:31:29,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:29,692 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 778 transitions. [2022-12-14 08:31:29,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 08:31:29,692 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 778 transitions. [2022-12-14 08:31:29,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 08:31:29,694 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:29,694 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 08:31:29,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 08:31:29,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:29,894 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:31:29,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:29,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2104323776, now seen corresponding path program 1 times [2022-12-14 08:31:29,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:29,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262747138] [2022-12-14 08:31:29,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:29,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:30,002 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 08:31:30,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:30,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262747138] [2022-12-14 08:31:30,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262747138] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:30,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122935576] [2022-12-14 08:31:30,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:30,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:30,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:30,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:30,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:31:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:30,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:31:30,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:30,217 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 08:31:30,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:31:30,255 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 08:31:30,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122935576] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:31:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [931786119] [2022-12-14 08:31:30,258 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 08:31:30,258 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:31:30,258 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:31:30,258 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:31:30,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:56,775 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:31:57,048 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 08:31:57,327 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 250 for LOIs [2022-12-14 08:31:58,669 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 08:31:58,704 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 250 for LOIs [2022-12-14 08:31:59,311 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 252 for LOIs [2022-12-14 08:32:02,810 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 234 for LOIs [2022-12-14 08:32:02,844 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 481 for LOIs [2022-12-14 08:32:05,816 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 226 for LOIs [2022-12-14 08:32:05,849 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:32:49,502 WARN L233 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 597 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:32:55,750 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 599 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:33:34,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [931786119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:33:34,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:33:34,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 08:33:34,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435707700] [2022-12-14 08:33:34,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:33:34,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 08:33:34,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:33:34,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 08:33:34,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=3225, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 08:33:34,205 INFO L87 Difference]: Start difference. First operand 516 states and 778 transitions. Second operand has 54 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 36 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 08:34:12,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:34:12,026 INFO L93 Difference]: Finished difference Result 1002 states and 1560 transitions. [2022-12-14 08:34:12,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 08:34:12,027 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 36 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 78 [2022-12-14 08:34:12,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:34:12,029 INFO L225 Difference]: With dead ends: 1002 [2022-12-14 08:34:12,029 INFO L226 Difference]: Without dead ends: 665 [2022-12-14 08:34:12,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 106.8s TimeCoverageRelationStatistics Valid=421, Invalid=5279, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 08:34:12,031 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 222 mSDsluCounter, 5112 mSDsCounter, 0 mSdLazyCounter, 6922 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 5333 SdHoareTripleChecker+Invalid, 6946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:34:12,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 5333 Invalid, 6946 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 6922 Invalid, 0 Unknown, 0 Unchecked, 18.5s Time] [2022-12-14 08:34:12,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-12-14 08:34:12,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 564. [2022-12-14 08:34:12,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 420 states have (on average 1.5119047619047619) internal successors, (635), 428 states have internal predecessors, (635), 113 states have call successors, (113), 33 states have call predecessors, (113), 30 states have return successors, (112), 104 states have call predecessors, (112), 112 states have call successors, (112) [2022-12-14 08:34:12,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 860 transitions. [2022-12-14 08:34:12,441 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 860 transitions. Word has length 78 [2022-12-14 08:34:12,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:34:12,441 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 860 transitions. [2022-12-14 08:34:12,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 36 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 08:34:12,441 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 860 transitions. [2022-12-14 08:34:12,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 08:34:12,442 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:34:12,442 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] [2022-12-14 08:34:12,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:34:12,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 08:34:12,644 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:34:12,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:34:12,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1120309800, now seen corresponding path program 1 times [2022-12-14 08:34:12,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:34:12,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314240251] [2022-12-14 08:34:12,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:34:12,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:34:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:34:12,767 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 08:34:12,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:34:12,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314240251] [2022-12-14 08:34:12,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314240251] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:34:12,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:34:12,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:34:12,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362620037] [2022-12-14 08:34:12,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:34:12,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:34:12,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:34:12,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:34:12,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:34:12,769 INFO L87 Difference]: Start difference. First operand 564 states and 860 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 08:34:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:34:13,275 INFO L93 Difference]: Finished difference Result 677 states and 998 transitions. [2022-12-14 08:34:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:34:13,275 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 81 [2022-12-14 08:34:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:34:13,279 INFO L225 Difference]: With dead ends: 677 [2022-12-14 08:34:13,279 INFO L226 Difference]: Without dead ends: 606 [2022-12-14 08:34:13,279 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 08:34:13,280 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 142 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:34:13,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 280 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:34:13,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-12-14 08:34:13,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2022-12-14 08:34:13,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 439 states have (on average 1.4943052391799545) internal successors, (656), 450 states have internal predecessors, (656), 125 states have call successors, (125), 43 states have call predecessors, (125), 38 states have return successors, (123), 112 states have call predecessors, (123), 123 states have call successors, (123) [2022-12-14 08:34:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2022-12-14 08:34:13,672 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 81 [2022-12-14 08:34:13,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:34:13,673 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2022-12-14 08:34:13,673 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 08:34:13,673 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2022-12-14 08:34:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 08:34:13,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:34:13,675 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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] [2022-12-14 08:34:13,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 08:34:13,675 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:34:13,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:34:13,675 INFO L85 PathProgramCache]: Analyzing trace with hash 991256410, now seen corresponding path program 1 times [2022-12-14 08:34:13,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:34:13,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36414155] [2022-12-14 08:34:13,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:34:13,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:34:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:34:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 08:34:13,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:34:13,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36414155] [2022-12-14 08:34:13,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36414155] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:34:13,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905835777] [2022-12-14 08:34:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:34:13,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:34:13,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:34:13,762 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:34:13,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e905638f-eb67-431a-a465-d8d576e77ff7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:34:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:34:13,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:34:13,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:34:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-14 08:34:13,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:34:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 08:34:14,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905835777] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:34:14,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1262597678] [2022-12-14 08:34:14,060 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2022-12-14 08:34:14,060 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:34:14,060 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:34:14,060 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:34:14,060 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:34:50,343 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:34:50,654 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 08:34:50,927 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 249 for LOIs [2022-12-14 08:34:52,771 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2022-12-14 08:34:52,806 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 249 for LOIs [2022-12-14 08:34:54,124 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 251 for LOIs [2022-12-14 08:35:07,300 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 445 for LOIs [2022-12-14 08:35:07,844 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 442 for LOIs [2022-12-14 08:35:08,430 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 239 for LOIs [2022-12-14 08:35:08,464 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 225 for LOIs [2022-12-14 08:35:08,497 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:35:56,922 WARN L233 SmtUtils]: Spent 13.31s on a formula simplification. DAG size of input: 591 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:36:03,717 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 593 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:36:36,950 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 445 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:36:45,103 WARN L233 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 464 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:37:27,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1262597678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:37:27,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:37:27,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [4, 4, 4] total 66 [2022-12-14 08:37:27,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341825530] [2022-12-14 08:37:27,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:37:27,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-12-14 08:37:27,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:37:27,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-12-14 08:37:27,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=4106, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 08:37:27,137 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 61 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 38 states have internal predecessors, (50), 18 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)