./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product29.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_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/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_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/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_a5593dd9-ed1a-4c53-87f4-f043bff8344b/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 71f8755187e6ba7ba58a893461c08a19c806970ccaa90de1a74095d8e9221b58 --- 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 13:39:23,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:39:23,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:39:23,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:39:23,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:39:23,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:39:23,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:39:23,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:39:23,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:39:23,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:39:23,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:39:23,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:39:23,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:39:23,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:39:23,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:39:23,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:39:23,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:39:23,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:39:23,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:39:23,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:39:23,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:39:23,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:39:23,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:39:23,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:39:23,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:39:23,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:39:23,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:39:23,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:39:23,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:39:23,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:39:23,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:39:23,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:39:23,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:39:23,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:39:23,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:39:23,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:39:23,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:39:23,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:39:23,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:39:23,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:39:23,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:39:23,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:39:23,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:39:23,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:39:23,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:39:23,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:39:23,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:39:23,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:39:23,877 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:39:23,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:39:23,877 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:39:23,877 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:39:23,877 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:39:23,877 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:39:23,878 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:39:23,878 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:39:23,878 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:39:23,878 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:39:23,878 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:39:23,878 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:39:23,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:39:23,879 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:39:23,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:39:23,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:39:23,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:39:23,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:39:23,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:39:23,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:39:23,880 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:39:23,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:39:23,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:39:23,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:39:23,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:39:23,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:39:23,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:39:23,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:39:23,881 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:39:23,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:39:23,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:39:23,881 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:39:23,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:39:23,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:39:23,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:39:23,881 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_a5593dd9-ed1a-4c53-87f4-f043bff8344b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71f8755187e6ba7ba58a893461c08a19c806970ccaa90de1a74095d8e9221b58 [2022-12-14 13:39:24,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:39:24,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:39:24,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:39:24,072 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:39:24,072 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:39:24,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec4_product29.cil.c [2022-12-14 13:39:26,638 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:39:26,906 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:39:26,906 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c [2022-12-14 13:39:26,922 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/data/9198dda69/1542b10a8d6a40bd875d9d1c078d9a70/FLAGdb7912c5a [2022-12-14 13:39:27,218 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/data/9198dda69/1542b10a8d6a40bd875d9d1c078d9a70 [2022-12-14 13:39:27,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:39:27,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:39:27,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:39:27,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:39:27,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:39:27,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571f1a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27, skipping insertion in model container [2022-12-14 13:39:27,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:39:27,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:39:27,498 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,503 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,510 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,673 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_a5593dd9-ed1a-4c53-87f4-f043bff8344b/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c[58438,58451] [2022-12-14 13:39:27,677 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,684 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,688 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,689 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,690 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:39:27,707 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:39:27,717 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,718 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,720 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,790 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_a5593dd9-ed1a-4c53-87f4-f043bff8344b/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c[58438,58451] [2022-12-14 13:39:27,791 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,792 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,794 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,795 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,796 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:27,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:39:27,823 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:39:27,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27 WrapperNode [2022-12-14 13:39:27,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:39:27,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:39:27,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:39:27,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:39:27,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,893 INFO L138 Inliner]: procedures = 131, calls = 227, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 925 [2022-12-14 13:39:27,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:39:27,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:39:27,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:39:27,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:39:27,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,941 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:39:27,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:39:27,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:39:27,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:39:27,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (1/1) ... [2022-12-14 13:39:27,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:39:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:39:27,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:39:27,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:39:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 13:39:28,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 13:39:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 13:39:28,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 13:39:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 13:39:28,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 13:39:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 13:39:28,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 13:39:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 13:39:28,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 13:39:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 13:39:28,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 13:39:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 13:39:28,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 13:39:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 13:39:28,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 13:39:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 13:39:28,019 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 13:39:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 13:39:28,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 13:39:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 13:39:28,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 13:39:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 13:39:28,020 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 13:39:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 13:39:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 13:39:28,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 13:39:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 13:39:28,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 13:39:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:39:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 13:39:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 13:39:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 13:39:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 13:39:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 13:39:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 13:39:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 13:39:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 13:39:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 13:39:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 13:39:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 13:39:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 13:39:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 13:39:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 13:39:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 13:39:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 13:39:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 13:39:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 13:39:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 13:39:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 13:39:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 13:39:28,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 13:39:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 13:39:28,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 13:39:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:39:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 13:39:28,023 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 13:39:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 13:39:28,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 13:39:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:39:28,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:39:28,170 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:39:28,172 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:39:28,687 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:39:29,031 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:39:29,031 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:39:29,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:39:29 BoogieIcfgContainer [2022-12-14 13:39:29,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:39:29,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:39:29,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:39:29,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:39:29,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:39:27" (1/3) ... [2022-12-14 13:39:29,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b4c125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:39:29, skipping insertion in model container [2022-12-14 13:39:29,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:27" (2/3) ... [2022-12-14 13:39:29,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b4c125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:39:29, skipping insertion in model container [2022-12-14 13:39:29,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:39:29" (3/3) ... [2022-12-14 13:39:29,040 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product29.cil.c [2022-12-14 13:39:29,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:39:29,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:39:29,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:39:29,097 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;@1ab7269a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:39:29,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:39:29,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 13:39:29,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 13:39:29,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:39:29,112 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] [2022-12-14 13:39:29,112 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:39:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:39:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1778124492, now seen corresponding path program 1 times [2022-12-14 13:39:29,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:39:29,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903586131] [2022-12-14 13:39:29,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:39:29,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:39:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:39:29,336 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:39:29,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:39:29,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903586131] [2022-12-14 13:39:29,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903586131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:39:29,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:39:29,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:39:29,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988565464] [2022-12-14 13:39:29,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:39:29,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:39:29,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:39:29,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:39:29,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:39:29,366 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:39:29,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:39:29,485 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2022-12-14 13:39:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:39:29,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 75 [2022-12-14 13:39:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:39:29,495 INFO L225 Difference]: With dead ends: 334 [2022-12-14 13:39:29,495 INFO L226 Difference]: Without dead ends: 210 [2022-12-14 13:39:29,498 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 13:39:29,500 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:39:29,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:39:29,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-14 13:39:29,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-12-14 13:39:29,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 13:39:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2022-12-14 13:39:29,541 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 75 [2022-12-14 13:39:29,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:39:29,542 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2022-12-14 13:39:29,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:39:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2022-12-14 13:39:29,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 13:39:29,545 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:39:29,545 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:39:29,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:39:29,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:39:29,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:39:29,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1677411058, now seen corresponding path program 1 times [2022-12-14 13:39:29,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:39:29,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176111327] [2022-12-14 13:39:29,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:39:29,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:39:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:39:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:39:29,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:39:29,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176111327] [2022-12-14 13:39:29,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176111327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:39:29,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:39:29,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:39:29,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434181070] [2022-12-14 13:39:29,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:39:29,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:39:29,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:39:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:39:29,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:39:29,736 INFO L87 Difference]: Start difference. First operand 210 states and 276 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:39:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:39:29,846 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2022-12-14 13:39:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:39:29,846 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-12-14 13:39:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:39:29,848 INFO L225 Difference]: With dead ends: 330 [2022-12-14 13:39:29,848 INFO L226 Difference]: Without dead ends: 212 [2022-12-14 13:39:29,850 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 13:39:29,851 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:39:29,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 477 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:39:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-12-14 13:39:29,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-12-14 13:39:29,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 13:39:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2022-12-14 13:39:29,875 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 76 [2022-12-14 13:39:29,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:39:29,875 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-12-14 13:39:29,876 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:39:29,876 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2022-12-14 13:39:29,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 13:39:29,879 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:39:29,879 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:39:29,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:39:29,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:39:29,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:39:29,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1612136285, now seen corresponding path program 1 times [2022-12-14 13:39:29,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:39:29,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833245443] [2022-12-14 13:39:29,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:39:29,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:39:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:39:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:39:29,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:39:29,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833245443] [2022-12-14 13:39:29,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833245443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:39:29,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:39:29,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:39:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506557554] [2022-12-14 13:39:29,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:39:29,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:39:29,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:39:29,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:39:29,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:39:29,974 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:39:30,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:39:30,087 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2022-12-14 13:39:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:39:30,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2022-12-14 13:39:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:39:30,090 INFO L225 Difference]: With dead ends: 459 [2022-12-14 13:39:30,090 INFO L226 Difference]: Without dead ends: 265 [2022-12-14 13:39:30,091 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 13:39:30,092 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 59 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:39:30,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 487 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:39:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-12-14 13:39:30,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2022-12-14 13:39:30,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 13:39:30,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2022-12-14 13:39:30,113 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 81 [2022-12-14 13:39:30,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:39:30,114 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2022-12-14 13:39:30,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:39:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2022-12-14 13:39:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 13:39:30,117 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:39:30,117 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:39:30,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:39:30,117 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:39:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:39:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash -33661940, now seen corresponding path program 1 times [2022-12-14 13:39:30,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:39:30,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321828483] [2022-12-14 13:39:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:39:30,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:39:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:39:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:39:30,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:39:30,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321828483] [2022-12-14 13:39:30,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321828483] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:39:30,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292195445] [2022-12-14 13:39:30,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:39:30,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:39:30,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:39:30,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:39:30,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:39:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:39:30,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:39:30,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:39:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:39:30,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:39:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:39:30,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292195445] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:39:30,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1578927881] [2022-12-14 13:39:30,648 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 13:39:30,648 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:39:30,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:39:30,657 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:39:30,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:39:58,405 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 13:39:58,687 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 474 for LOIs [2022-12-14 13:40:28,477 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-12-14 13:40:28,758 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 13:40:29,040 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 472 for LOIs [2022-12-14 13:40:34,433 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 260 for LOIs [2022-12-14 13:40:43,347 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 439 for LOIs [2022-12-14 13:40:43,602 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 243 for LOIs [2022-12-14 13:40:43,666 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 240 for LOIs [2022-12-14 13:40:43,703 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-12-14 13:40:44,297 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 245 for LOIs [2022-12-14 13:40:44,335 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 248 for LOIs [2022-12-14 13:40:44,377 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:43:01,686 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 546 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:43:06,469 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3624#(and (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~msg#1| 1) (= ~__ste_client_privateKey0~0 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp~14#1|) (<= 1 |outgoing__wrappee__Encrypt_mail_#in~msg#1|) (= ~__GUIDSL_NON_TERMINAL_main~0 0) (<= |old(~__ste_email_isEncrypted1~0)| 0) (<= 0 ~__ste_email_encryptionKey1~0) (= ~__SELECTED_FEATURE_Sign~0 0) (= ~__ste_client_outbuffer3~0 0) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~6#1| 1) (= ~__ste_Client_counter~0 0) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_#in~client#1| 1) (<= 1 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~client#1|) (<= |outgoing__wrappee__Encrypt_~receiver~0#1| 2) (<= |old(~__ste_email_encryptionKey0~0)| 0) (<= ~__ste_email_encryptionKey1~0 0) (<= |outgoing__wrappee__Encrypt_mail_#in~msg#1| 1) (<= ~__ste_email_isSignatureVerified1~0 0) (= ~__ste_client_autoResponse1~0 0) (= ~__ste_Client_AddressBook2_Alias0~0 0) (= 0 ~__ste_email_subject0~0.base) (= |outgoing__wrappee__Encrypt_~pubkey~0#1| 0) (= ~__ste_Client_AddressBook2_Alias1~0 0) (= ~__ste_Client_Keyring2_PublicKey2~0 0) (<= 1 |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~client#1|) (<= |outgoing__wrappee__Encrypt_#in~client#1| 1) (= ~__ste_client_name2~0.offset 0) (<= 0 |old(~__ste_email_encryptionKey1~0)|) (= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp~14#1| 0) (<= |outgoing__wrappee__Encrypt_mail_~msg#1| 1) (<= 1 |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~msg#1|) (<= ~__ste_client_idCounter2~0 3) (<= |old(~__ste_email_from0~0)| 0) (<= ~__ste_email_isSignatureVerified0~0 0) (= ~__ste_email_body1~0.offset 0) (= ~__SELECTED_FEATURE_Encrypt~0 0) (= ~__ste_Client_AddressBook1_Address2~0 0) (<= 1 |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~msg#1|) (<= ~__ste_email_from0~0 2147483647) (= ~__ste_ClientAddressBook_size1~0 0) (= ~__ste_Email_counter~0 0) (= ~__ste_email_body0~0.offset 0) (<= 1 |outgoing__wrappee__Encrypt_~client#1|) (<= 0 ~__ste_email_isSigned1~0) (<= 0 (+ ~__ste_email_from0~0 2147483648)) (= ~__ste_Client_Keyring0_User2~0 0) (= ~__ste_ClientAddressBook_size0~0 0) (<= |old(~__ste_email_isEncrypted0~0)| 0) (= ~__ste_Client_Keyring0_User1~0 0) (= ~__ste_Client_AddressBook1_Alias1~0 0) (= ~__ste_client_name1~0.offset 0) (= ~head~0.offset 0) (<= |outgoing__wrappee__Encrypt_getClientId_~retValue_acc~24#1| 2147483647) (= ~__ste_Client_Keyring0_PublicKey2~0 0) (<= 1 |outgoing__wrappee__Encrypt_mail_~client#1|) (<= |outgoing__wrappee__Encrypt_mail_~client#1| 1) (<= ~__ste_client_privateKey2~0 789) (= ~__ste_Client_Keyring1_PublicKey0~0 0) (<= 0 |old(~__ste_email_encryptionKey0~0)|) (<= ~queue_empty~0 1) (= ~__SELECTED_FEATURE_Decrypt~0 0) (<= 0 ~__ste_Client_Keyring1_User2~0) (<= 0 |old(~__ste_email_isEncrypted0~0)|) (<= 0 (+ ~__ste_email_signKey0~0 2147483648)) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~tmp~16#1| 2147483647) (<= 0 ~__ste_email_isEncrypted1~0) (= ~__SELECTED_FEATURE_Keys~0 0) (<= ~__ste_email_signKey0~0 2147483647) (<= 0 |old(~__ste_email_from0~0)|) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~client#1| 1) (<= |#NULL.offset| 0) (<= 0 ~__ste_Client_Keyring1_User0~0) (<= 0 ~__SELECTED_FEATURE_AddressBook~0) (= ~__ste_Client_Keyring0_PublicKey1~0 0) (= ~__SELECTED_FEATURE_Forward~0 0) (<= 0 ~__ste_email_isEncrypted0~0) (= ~__ste_Client_Keyring0_User0~0 0) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~client#1| 1) (<= 0 (+ |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~tmp~16#1| 2147483648)) (<= ~__ste_client_idCounter0~0 2147483647) (= ~__ste_Client_Keyring2_PublicKey1~0 0) (<= 0 ~__ste_email_id1~0) (<= ~__ste_Client_AddressBook0_Address1~0 0) (= ~__ste_email_body0~0.base 0) (<= ~__ste_email_isSigned0~0 1) (<= ~__ste_email_isEncrypted0~0 0) (= ~__ste_Client_AddressBook0_Alias0~0 0) (<= |outgoing__wrappee__Encrypt_~client#1| 1) (<= 0 ~__ste_Client_AddressBook2_Address1~0) (<= 0 ~__ste_client_name0~0.offset) (<= 1 |outgoing__wrappee__Encrypt_#in~client#1|) (<= ~__ste_Client_Keyring0_PublicKey0~0 0) (<= ~__ste_client_name1~0.base 0) (= ~__ste_email_id0~0 0) (<= ~__ste_client_autoResponse0~0 0) (<= ~__SELECTED_FEATURE_AddressBook~0 0) (<= ~__ste_Client_Keyring1_PublicKey2~0 0) (<= 0 ~__ste_Client_Keyring0_PublicKey0~0) (<= ~__ste_client_forwardReceiver3~0 0) (<= 3 ~__ste_client_idCounter2~0) (= ~__ste_Client_AddressBook2_Address2~0 0) (<= 0 ~__ste_Client_Keyring1_PublicKey2~0) (<= |outgoing__wrappee__Encrypt_getClientId_~handle#1| 1) (<= ~__ste_Client_AddressBook0_Address0~0 0) (<= |outgoing__wrappee__Encrypt_~msg#1| 1) (<= 0 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~6#1|) (= 3 ~chuck~0) (<= |outgoing__wrappee__Encrypt_~tmp___0~7#1| 0) (<= 0 ~__ste_email_signKey1~0) (<= 1 ~queue_empty~0) (<= ~__ste_email_signKey1~0 0) (<= 0 ~__ste_client_forwardReceiver3~0) (<= ~__ste_email_isSigned1~0 0) (<= ~__ste_email_subject0~0.offset 0) (<= 0 ~__ste_client_autoResponse0~0) (<= |outgoing__wrappee__Encrypt_getClientId_#in~handle#1| 1) (<= 1 |outgoing__wrappee__Encrypt_getClientId_#in~handle#1|) (<= 0 ~__ste_Client_AddressBook0_Alias2~0) (<= 0 |old(~__ste_email_isSignatureVerified0~0)|) (<= 0 ~__ste_email_isSignatureVerified1~0) (<= 1 |outgoing__wrappee__Encrypt_#in~msg#1|) (= ~__ste_client_outbuffer0~0 0) (<= 789 ~__ste_client_privateKey2~0) (<= ~__SELECTED_FEATURE_Verify~0 0) (<= ~__ste_ClientKeyring_size1~0 0) (<= ~__ste_Client_Keyring1_User2~0 0) (<= |outgoing__wrappee__Encrypt_#in~msg#1| 1) (<= 0 ~head~0.base) (<= 0 |old(~__ste_email_isEncrypted1~0)|) (= ~__SELECTED_FEATURE_Base~0 0) (<= ~__ste_Client_AddressBook1_Alias2~0 0) (<= 2 |outgoing__wrappee__Encrypt_~receiver~0#1|) (<= 0 ~__ste_Client_AddressBook0_Address2~0) (= ~__ste_client_forwardReceiver0~0 0) (= ~__ste_Client_Keyring2_User0~0 0) (<= 0 ~__ste_email_subject0~0.offset) (= ~rjh~0 2) (<= 0 ~__ste_Client_AddressBook1_Alias0~0) (= ~__ste_Client_AddressBook2_Address0~0 0) (= ~__ste_Client_Keyring1_PublicKey1~0 0) (<= 0 ~queued_client~0) (<= ~__ste_Client_AddressBook1_Alias0~0 0) (<= 1 |outgoing__wrappee__Encrypt_mail_~msg#1|) (= ~__ste_Client_Keyring2_PublicKey0~0 0) (<= 0 ~__ste_email_isSignatureVerified0~0) (= ~__ste_Client_AddressBook1_Address0~0 0) (<= 0 ~__ste_ClientKeyring_size1~0) (<= 0 ~__ste_client_forwardReceiver2~0) (= ~__ste_client_name2~0.base 0) (<= 0 ~__ste_Client_AddressBook0_Address1~0) (<= 1 |outgoing__wrappee__Encrypt_~msg#1|) (<= ~__ste_email_encryptionKey0~0 0) (<= 1 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~msg#1|) (<= |old(~__ste_email_encryptionKey1~0)| 0) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_#in~msg#1| 1) (= ~__ste_email_subject1~0.base 0) (<= ~__ste_ClientKeyring_size0~0 0) (<= ~__ste_email_id1~0 0) (<= 0 ~__ste_Client_AddressBook0_Address0~0) (<= 1 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_#in~msg#1|) (<= ~__ste_Client_Keyring1_User0~0 0) (<= ~__ste_Client_AddressBook0_Alias2~0 0) (<= 1 |outgoing__wrappee__Encrypt_getClientId_~handle#1|) (<= ~__ste_Client_AddressBook0_Address2~0 0) (= ~__ste_Client_Keyring2_User2~0 0) (<= 1 |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg2~0#1|) (<= ~head~0.base 0) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~client#1| 1) (<= ~__ste_client_forwardReceiver1~0 0) (= ~__ste_Client_Keyring1_User1~0 0) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~msg#1| 1) (= ~__ste_Client_AddressBook2_Alias2~0 0) (<= 1 |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg1~0#1|) (<= 1 |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~client#1|) (<= ~__ste_Client_Keyring2_User1~0 0) (<= 0 ~__ste_email_isSigned0~0) (<= 0 ~__SELECTED_FEATURE_Verify~0) (<= 1 |outgoing__wrappee__Encrypt_mail_#in~client#1|) (<= 0 ~__ste_Client_AddressBook1_Alias2~0) (<= 0 ~__ste_client_autoResponse2~0) (= ~__ste_email_subject1~0.offset 0) (<= |outgoing__wrappee__Encrypt_~tmp~17#1| 2) (<= |outgoing__wrappee__Encrypt_mail_#in~client#1| 1) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~msg#1| 1) (<= 0 ~__ste_Client_Keyring2_User1~0) (<= 2 |outgoing__wrappee__Encrypt_~tmp~17#1|) (= ~queued_message~0 0) (= ~__ste_Client_AddressBook1_Address1~0 0) (not (= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~6#1| 0)) (<= 1 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_#in~client#1|) (<= ~__ste_client_name0~0.offset 0) (= ~__ste_client_outbuffer1~0 0) (= ~__ste_Client_AddressBook0_Alias1~0 0) (<= 0 ~__ste_ClientKeyring_size0~0) (<= ~__ste_email_isEncrypted1~0 0) (<= |old(~__ste_email_isSignatureVerified0~0)| 0) (= ~__GUIDSL_ROOT_PRODUCTION~0 0) (<= 0 |#NULL.offset|) (<= |old(~__ste_email_isSignatureVerified1~0)| 0) (<= 0 (+ |outgoing__wrappee__Encrypt_getClientId_~retValue_acc~24#1| 2147483648)) (<= 0 ~__ste_client_forwardReceiver1~0) (= ~__ste_client_name0~0.base 0) (<= 0 (+ |outgoing__wrappee__Encrypt_getClientId_#res#1| 2147483648)) (<= |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg1~0#1| 1) (<= 0 |old(~__ste_email_isSignatureVerified1~0)|) (<= ~__ste_Client_AddressBook2_Address1~0 0) (= ~__ste_client_outbuffer2~0 0) (<= ~bob~0 1) (<= 0 (+ ~__ste_client_idCounter0~0 2147483648)) (<= ~__ste_client_forwardReceiver2~0 0) (<= 2 ~__ste_email_to0~0) (<= 0 |#StackHeapBarrier|) (<= ~__ste_email_to0~0 2) (<= |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg2~0#1| 1) (= ~__ste_ClientAddressBook_size2~0 0) (= ~__SELECTED_FEATURE_AutoResponder~0 0) (<= ~__ste_client_autoResponse2~0 0) (= ~__ste_email_body1~0.base 0) (<= 1 ~bob~0) (= ~__ste_ClientKeyring_size2~0 0) (<= 0 ~__ste_client_name1~0.base) (<= 0 |outgoing__wrappee__Encrypt_~tmp___0~7#1|) (<= 0 ~__ste_email_encryptionKey0~0) (= |#NULL.base| 0) (<= |outgoing__wrappee__Encrypt_getClientId_#res#1| 2147483647) (<= ~queued_client~0 0))' at error location [2022-12-14 13:43:06,469 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:43:06,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:43:06,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 13:43:06,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077557634] [2022-12-14 13:43:06,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:43:06,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 13:43:06,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:06,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 13:43:06,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=4354, Unknown=0, NotChecked=0, Total=4556 [2022-12-14 13:43:06,471 INFO L87 Difference]: Start difference. First operand 260 states and 361 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 13:43:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:06,693 INFO L93 Difference]: Finished difference Result 653 states and 972 transitions. [2022-12-14 13:43:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:43:06,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 82 [2022-12-14 13:43:06,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:06,696 INFO L225 Difference]: With dead ends: 653 [2022-12-14 13:43:06,696 INFO L226 Difference]: Without dead ends: 535 [2022-12-14 13:43:06,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1145 ImplicationChecksByTransitivity, 142.0s TimeCoverageRelationStatistics Valid=202, Invalid=4354, Unknown=0, NotChecked=0, Total=4556 [2022-12-14 13:43:06,699 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 218 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:06,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 1171 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:43:06,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-12-14 13:43:06,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 520. [2022-12-14 13:43:06,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 335 states have (on average 1.4746268656716417) internal successors, (494), 339 states have internal predecessors, (494), 156 states have call successors, (156), 28 states have call predecessors, (156), 28 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2022-12-14 13:43:06,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 805 transitions. [2022-12-14 13:43:06,746 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 805 transitions. Word has length 82 [2022-12-14 13:43:06,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:06,746 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 805 transitions. [2022-12-14 13:43:06,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 13:43:06,747 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 805 transitions. [2022-12-14 13:43:06,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 13:43:06,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:06,752 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:06,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:43:06,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5593dd9-ed1a-4c53-87f4-f043bff8344b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-14 13:43:06,953 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:06,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1499681871, now seen corresponding path program 1 times [2022-12-14 13:43:06,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:06,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811399479] [2022-12-14 13:43:06,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:06,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:07,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:07,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:07,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811399479] [2022-12-14 13:43:07,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811399479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:07,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:07,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:07,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558206064] [2022-12-14 13:43:07,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:07,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:07,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:07,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:07,091 INFO L87 Difference]: Start difference. First operand 520 states and 805 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:07,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:07,211 INFO L93 Difference]: Finished difference Result 1270 states and 2008 transitions. [2022-12-14 13:43:07,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:07,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 88 [2022-12-14 13:43:07,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:07,217 INFO L225 Difference]: With dead ends: 1270 [2022-12-14 13:43:07,217 INFO L226 Difference]: Without dead ends: 782 [2022-12-14 13:43:07,219 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 13:43:07,220 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 57 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:07,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 495 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:07,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-12-14 13:43:07,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 777. [2022-12-14 13:43:07,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 513 states have (on average 1.4951267056530215) internal successors, (767), 517 states have internal predecessors, (767), 235 states have call successors, (235), 28 states have call predecessors, (235), 28 states have return successors, (234), 233 states have call predecessors, (234), 234 states have call successors, (234) [2022-12-14 13:43:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1236 transitions. [2022-12-14 13:43:07,269 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1236 transitions. Word has length 88 [2022-12-14 13:43:07,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:07,270 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1236 transitions. [2022-12-14 13:43:07,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:07,270 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1236 transitions. [2022-12-14 13:43:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 13:43:07,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:07,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:07,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:43:07,276 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:07,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:07,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1690218467, now seen corresponding path program 1 times [2022-12-14 13:43:07,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:07,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167270376] [2022-12-14 13:43:07,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:07,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:07,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:07,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167270376] [2022-12-14 13:43:07,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167270376] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:07,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:07,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:07,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304429015] [2022-12-14 13:43:07,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:07,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:07,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:07,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:07,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:07,368 INFO L87 Difference]: Start difference. First operand 777 states and 1236 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:07,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:07,515 INFO L93 Difference]: Finished difference Result 1892 states and 3055 transitions. [2022-12-14 13:43:07,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:07,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2022-12-14 13:43:07,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:07,522 INFO L225 Difference]: With dead ends: 1892 [2022-12-14 13:43:07,522 INFO L226 Difference]: Without dead ends: 1177 [2022-12-14 13:43:07,524 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 13:43:07,524 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 55 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:07,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 488 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:07,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-12-14 13:43:07,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1172. [2022-12-14 13:43:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 789 states have (on average 1.5044359949302915) internal successors, (1187), 793 states have internal predecessors, (1187), 354 states have call successors, (354), 28 states have call predecessors, (354), 28 states have return successors, (353), 352 states have call predecessors, (353), 353 states have call successors, (353) [2022-12-14 13:43:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1894 transitions. [2022-12-14 13:43:07,569 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1894 transitions. Word has length 89 [2022-12-14 13:43:07,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:07,569 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1894 transitions. [2022-12-14 13:43:07,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:07,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1894 transitions. [2022-12-14 13:43:07,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 13:43:07,573 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:07,573 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:07,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 13:43:07,573 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:07,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:07,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2070889747, now seen corresponding path program 1 times [2022-12-14 13:43:07,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:07,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851391903] [2022-12-14 13:43:07,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:07,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:07,628 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:07,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:07,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851391903] [2022-12-14 13:43:07,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851391903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:07,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:07,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:07,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985581071] [2022-12-14 13:43:07,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:07,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:07,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:07,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:07,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:07,630 INFO L87 Difference]: Start difference. First operand 1172 states and 1894 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:07,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:07,794 INFO L93 Difference]: Finished difference Result 2795 states and 4567 transitions. [2022-12-14 13:43:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:07,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 90 [2022-12-14 13:43:07,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:07,804 INFO L225 Difference]: With dead ends: 2795 [2022-12-14 13:43:07,805 INFO L226 Difference]: Without dead ends: 1765 [2022-12-14 13:43:07,809 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 13:43:07,809 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 53 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:07,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 485 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:07,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2022-12-14 13:43:07,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1760. [2022-12-14 13:43:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1215 states have (on average 1.5102880658436213) internal successors, (1835), 1219 states have internal predecessors, (1835), 516 states have call successors, (516), 28 states have call predecessors, (516), 28 states have return successors, (515), 514 states have call predecessors, (515), 515 states have call successors, (515) [2022-12-14 13:43:07,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2866 transitions. [2022-12-14 13:43:07,927 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2866 transitions. Word has length 90 [2022-12-14 13:43:07,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:07,927 INFO L495 AbstractCegarLoop]: Abstraction has 1760 states and 2866 transitions. [2022-12-14 13:43:07,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:07,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2866 transitions. [2022-12-14 13:43:07,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 13:43:07,933 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:07,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:07,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 13:43:07,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:07,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:07,934 INFO L85 PathProgramCache]: Analyzing trace with hash -691540260, now seen corresponding path program 1 times [2022-12-14 13:43:07,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:07,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405859216] [2022-12-14 13:43:07,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:07,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:08,017 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:08,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:08,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405859216] [2022-12-14 13:43:08,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405859216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:08,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:08,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:08,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046026018] [2022-12-14 13:43:08,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:08,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:08,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:08,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:08,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:08,019 INFO L87 Difference]: Start difference. First operand 1760 states and 2866 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:08,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:08,238 INFO L93 Difference]: Finished difference Result 4180 states and 6875 transitions. [2022-12-14 13:43:08,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:08,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 91 [2022-12-14 13:43:08,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:08,252 INFO L225 Difference]: With dead ends: 4180 [2022-12-14 13:43:08,252 INFO L226 Difference]: Without dead ends: 2699 [2022-12-14 13:43:08,256 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 13:43:08,257 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 51 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:08,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 483 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:08,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2022-12-14 13:43:08,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2694. [2022-12-14 13:43:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 1904 states have (on average 1.5131302521008403) internal successors, (2881), 1908 states have internal predecessors, (2881), 761 states have call successors, (761), 28 states have call predecessors, (761), 28 states have return successors, (760), 759 states have call predecessors, (760), 760 states have call successors, (760) [2022-12-14 13:43:08,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 4402 transitions. [2022-12-14 13:43:08,420 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 4402 transitions. Word has length 91 [2022-12-14 13:43:08,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:08,420 INFO L495 AbstractCegarLoop]: Abstraction has 2694 states and 4402 transitions. [2022-12-14 13:43:08,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 4402 transitions. [2022-12-14 13:43:08,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 13:43:08,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:08,431 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:08,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 13:43:08,432 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:08,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:08,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1712257841, now seen corresponding path program 1 times [2022-12-14 13:43:08,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:08,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083903557] [2022-12-14 13:43:08,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:08,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:08,492 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:08,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:08,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083903557] [2022-12-14 13:43:08,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083903557] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:08,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:08,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:08,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055419061] [2022-12-14 13:43:08,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:08,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:08,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:08,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:08,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:08,494 INFO L87 Difference]: Start difference. First operand 2694 states and 4402 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:08,761 INFO L93 Difference]: Finished difference Result 6696 states and 11035 transitions. [2022-12-14 13:43:08,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:08,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 92 [2022-12-14 13:43:08,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:08,783 INFO L225 Difference]: With dead ends: 6696 [2022-12-14 13:43:08,784 INFO L226 Difference]: Without dead ends: 4424 [2022-12-14 13:43:08,791 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 13:43:08,791 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 49 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:08,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 501 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:08,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4424 states. [2022-12-14 13:43:09,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4424 to 4419. [2022-12-14 13:43:09,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 3136 states have (on average 1.503188775510204) internal successors, (4714), 3140 states have internal predecessors, (4714), 1254 states have call successors, (1254), 28 states have call predecessors, (1254), 28 states have return successors, (1253), 1252 states have call predecessors, (1253), 1253 states have call successors, (1253) [2022-12-14 13:43:09,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 7221 transitions. [2022-12-14 13:43:09,061 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 7221 transitions. Word has length 92 [2022-12-14 13:43:09,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:09,062 INFO L495 AbstractCegarLoop]: Abstraction has 4419 states and 7221 transitions. [2022-12-14 13:43:09,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 7221 transitions. [2022-12-14 13:43:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 13:43:09,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:09,072 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:09,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 13:43:09,072 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1549935976, now seen corresponding path program 1 times [2022-12-14 13:43:09,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:09,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338534310] [2022-12-14 13:43:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:09,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:09,141 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:09,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:09,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338534310] [2022-12-14 13:43:09,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338534310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:09,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:09,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:09,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795547301] [2022-12-14 13:43:09,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:09,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:09,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:09,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:09,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:09,143 INFO L87 Difference]: Start difference. First operand 4419 states and 7221 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:09,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:09,468 INFO L93 Difference]: Finished difference Result 11112 states and 18320 transitions. [2022-12-14 13:43:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:09,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2022-12-14 13:43:09,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:09,495 INFO L225 Difference]: With dead ends: 11112 [2022-12-14 13:43:09,496 INFO L226 Difference]: Without dead ends: 7381 [2022-12-14 13:43:09,505 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 13:43:09,506 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 47 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:09,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 490 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-12-14 13:43:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 7376. [2022-12-14 13:43:10,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7376 states, 5271 states have (on average 1.4985771200910643) internal successors, (7899), 5275 states have internal predecessors, (7899), 2076 states have call successors, (2076), 28 states have call predecessors, (2076), 28 states have return successors, (2075), 2074 states have call predecessors, (2075), 2075 states have call successors, (2075) [2022-12-14 13:43:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7376 states to 7376 states and 12050 transitions. [2022-12-14 13:43:10,136 INFO L78 Accepts]: Start accepts. Automaton has 7376 states and 12050 transitions. Word has length 93 [2022-12-14 13:43:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:10,136 INFO L495 AbstractCegarLoop]: Abstraction has 7376 states and 12050 transitions. [2022-12-14 13:43:10,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 7376 states and 12050 transitions. [2022-12-14 13:43:10,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 13:43:10,149 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:10,150 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:10,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 13:43:10,150 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:10,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:10,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1906177007, now seen corresponding path program 1 times [2022-12-14 13:43:10,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:10,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380274075] [2022-12-14 13:43:10,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:10,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:10,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:10,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380274075] [2022-12-14 13:43:10,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380274075] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:10,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:10,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:10,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532462031] [2022-12-14 13:43:10,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:10,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:10,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:10,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:10,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:10,203 INFO L87 Difference]: Start difference. First operand 7376 states and 12050 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:10,757 INFO L93 Difference]: Finished difference Result 18579 states and 30582 transitions. [2022-12-14 13:43:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:10,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2022-12-14 13:43:10,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:10,802 INFO L225 Difference]: With dead ends: 18579 [2022-12-14 13:43:10,802 INFO L226 Difference]: Without dead ends: 12325 [2022-12-14 13:43:10,815 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 13:43:10,815 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 45 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:10,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 484 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12325 states. [2022-12-14 13:43:11,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12325 to 12320. [2022-12-14 13:43:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12320 states, 9012 states have (on average 1.5002219263204617) internal successors, (13520), 9016 states have internal predecessors, (13520), 3279 states have call successors, (3279), 28 states have call predecessors, (3279), 28 states have return successors, (3278), 3277 states have call predecessors, (3278), 3278 states have call successors, (3278) [2022-12-14 13:43:11,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12320 states to 12320 states and 20077 transitions. [2022-12-14 13:43:11,533 INFO L78 Accepts]: Start accepts. Automaton has 12320 states and 20077 transitions. Word has length 94 [2022-12-14 13:43:11,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:11,533 INFO L495 AbstractCegarLoop]: Abstraction has 12320 states and 20077 transitions. [2022-12-14 13:43:11,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:11,534 INFO L276 IsEmpty]: Start isEmpty. Operand 12320 states and 20077 transitions. [2022-12-14 13:43:11,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 13:43:11,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:11,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:11,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 13:43:11,549 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash -706707017, now seen corresponding path program 1 times [2022-12-14 13:43:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:11,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052124985] [2022-12-14 13:43:11,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:11,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:11,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052124985] [2022-12-14 13:43:11,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052124985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:11,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:11,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:11,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900454184] [2022-12-14 13:43:11,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:11,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:11,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:11,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:11,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:11,604 INFO L87 Difference]: Start difference. First operand 12320 states and 20077 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:12,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:12,629 INFO L93 Difference]: Finished difference Result 32583 states and 53444 transitions. [2022-12-14 13:43:12,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:12,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 95 [2022-12-14 13:43:12,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:12,695 INFO L225 Difference]: With dead ends: 32583 [2022-12-14 13:43:12,695 INFO L226 Difference]: Without dead ends: 21837 [2022-12-14 13:43:12,720 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 13:43:12,721 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 43 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:12,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 490 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:12,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21837 states. [2022-12-14 13:43:13,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21837 to 21832. [2022-12-14 13:43:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21832 states, 16074 states have (on average 1.4926589523454026) internal successors, (23993), 16078 states have internal predecessors, (23993), 5729 states have call successors, (5729), 28 states have call predecessors, (5729), 28 states have return successors, (5728), 5727 states have call predecessors, (5728), 5728 states have call successors, (5728) [2022-12-14 13:43:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21832 states to 21832 states and 35450 transitions. [2022-12-14 13:43:13,703 INFO L78 Accepts]: Start accepts. Automaton has 21832 states and 35450 transitions. Word has length 95 [2022-12-14 13:43:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:13,704 INFO L495 AbstractCegarLoop]: Abstraction has 21832 states and 35450 transitions. [2022-12-14 13:43:13,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 21832 states and 35450 transitions. [2022-12-14 13:43:13,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 13:43:13,720 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:13,720 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:13,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 13:43:13,720 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1835924331, now seen corresponding path program 1 times [2022-12-14 13:43:13,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:13,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179390427] [2022-12-14 13:43:13,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:13,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:13,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:13,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179390427] [2022-12-14 13:43:13,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179390427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:13,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:13,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:13,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973280853] [2022-12-14 13:43:13,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:13,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:13,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:13,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:13,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:13,771 INFO L87 Difference]: Start difference. First operand 21832 states and 35450 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:15,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:15,575 INFO L93 Difference]: Finished difference Result 59270 states and 96696 transitions. [2022-12-14 13:43:15,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:15,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 96 [2022-12-14 13:43:15,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:15,681 INFO L225 Difference]: With dead ends: 59270 [2022-12-14 13:43:15,681 INFO L226 Difference]: Without dead ends: 39607 [2022-12-14 13:43:15,717 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 13:43:15,717 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 41 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:15,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 489 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:15,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39607 states. [2022-12-14 13:43:17,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39607 to 39602. [2022-12-14 13:43:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39602 states, 29331 states have (on average 1.4820156148784562) internal successors, (43469), 29335 states have internal predecessors, (43469), 10242 states have call successors, (10242), 28 states have call predecessors, (10242), 28 states have return successors, (10241), 10240 states have call predecessors, (10241), 10241 states have call successors, (10241) [2022-12-14 13:43:17,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39602 states to 39602 states and 63952 transitions. [2022-12-14 13:43:17,463 INFO L78 Accepts]: Start accepts. Automaton has 39602 states and 63952 transitions. Word has length 96 [2022-12-14 13:43:17,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:17,463 INFO L495 AbstractCegarLoop]: Abstraction has 39602 states and 63952 transitions. [2022-12-14 13:43:17,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:17,464 INFO L276 IsEmpty]: Start isEmpty. Operand 39602 states and 63952 transitions. [2022-12-14 13:43:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 13:43:17,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:17,480 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:17,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 13:43:17,480 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:17,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:17,481 INFO L85 PathProgramCache]: Analyzing trace with hash 978830103, now seen corresponding path program 1 times [2022-12-14 13:43:17,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:17,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518060901] [2022-12-14 13:43:17,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:17,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:17,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:17,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518060901] [2022-12-14 13:43:17,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518060901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:17,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:17,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742312037] [2022-12-14 13:43:17,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:17,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:17,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:17,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:17,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:17,606 INFO L87 Difference]: Start difference. First operand 39602 states and 63952 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:20,612 INFO L93 Difference]: Finished difference Result 73168 states and 118331 transitions. [2022-12-14 13:43:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2022-12-14 13:43:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:20,790 INFO L225 Difference]: With dead ends: 73168 [2022-12-14 13:43:20,790 INFO L226 Difference]: Without dead ends: 73050 [2022-12-14 13:43:20,810 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 13:43:20,810 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 39 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:20,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 488 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:20,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73050 states. [2022-12-14 13:43:25,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73050 to 73045. [2022-12-14 13:43:25,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73045 states, 54406 states have (on average 1.4680549939344925) internal successors, (79871), 54410 states have internal predecessors, (79871), 18610 states have call successors, (18610), 28 states have call predecessors, (18610), 28 states have return successors, (18609), 18608 states have call predecessors, (18609), 18609 states have call successors, (18609) [2022-12-14 13:43:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73045 states to 73045 states and 117090 transitions. [2022-12-14 13:43:26,094 INFO L78 Accepts]: Start accepts. Automaton has 73045 states and 117090 transitions. Word has length 97 [2022-12-14 13:43:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:26,095 INFO L495 AbstractCegarLoop]: Abstraction has 73045 states and 117090 transitions. [2022-12-14 13:43:26,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 13:43:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 73045 states and 117090 transitions. [2022-12-14 13:43:26,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 13:43:26,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:26,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:26,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 13:43:26,120 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:26,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash 256563446, now seen corresponding path program 1 times [2022-12-14 13:43:26,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:26,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030256807] [2022-12-14 13:43:26,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:26,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:27,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 13:43:27,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:27,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030256807] [2022-12-14 13:43:27,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030256807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:27,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:27,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 13:43:27,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889946230] [2022-12-14 13:43:27,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:27,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-14 13:43:27,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:27,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-14 13:43:27,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2022-12-14 13:43:27,050 INFO L87 Difference]: Start difference. First operand 73045 states and 117090 transitions. Second operand has 22 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 9 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 13:43:31,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:31,423 INFO L93 Difference]: Finished difference Result 73191 states and 117312 transitions. [2022-12-14 13:43:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 13:43:31,424 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 9 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 98 [2022-12-14 13:43:31,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:31,643 INFO L225 Difference]: With dead ends: 73191 [2022-12-14 13:43:31,643 INFO L226 Difference]: Without dead ends: 73187 [2022-12-14 13:43:31,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=1151, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 13:43:31,670 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 481 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 3300 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:31,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 3300 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 13:43:31,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73187 states. [2022-12-14 13:43:35,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73187 to 73119. [2022-12-14 13:43:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73119 states, 54446 states have (on average 1.467876428020424) internal successors, (79920), 54453 states have internal predecessors, (79920), 18640 states have call successors, (18640), 33 states have call predecessors, (18640), 32 states have return successors, (18637), 18636 states have call predecessors, (18637), 18637 states have call successors, (18637) [2022-12-14 13:43:35,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73119 states to 73119 states and 117197 transitions. [2022-12-14 13:43:35,972 INFO L78 Accepts]: Start accepts. Automaton has 73119 states and 117197 transitions. Word has length 98 [2022-12-14 13:43:35,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:35,972 INFO L495 AbstractCegarLoop]: Abstraction has 73119 states and 117197 transitions. [2022-12-14 13:43:35,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 9 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 13:43:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand 73119 states and 117197 transitions. [2022-12-14 13:43:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-14 13:43:36,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:36,085 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:36,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 13:43:36,085 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:36,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash 894219257, now seen corresponding path program 1 times [2022-12-14 13:43:36,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:36,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798726811] [2022-12-14 13:43:36,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:36,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-14 13:43:36,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:36,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798726811] [2022-12-14 13:43:36,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798726811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:36,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:36,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:43:36,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670178663] [2022-12-14 13:43:36,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:36,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:43:36,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:36,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:43:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:43:36,290 INFO L87 Difference]: Start difference. First operand 73119 states and 117197 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-14 13:43:41,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:41,147 INFO L93 Difference]: Finished difference Result 73153 states and 117216 transitions. [2022-12-14 13:43:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:43:41,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 158 [2022-12-14 13:43:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:41,148 INFO L225 Difference]: With dead ends: 73153 [2022-12-14 13:43:41,148 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 13:43:41,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:43:41,229 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 232 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:41,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 471 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 13:43:41,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 13:43:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:43:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 13:43:41,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2022-12-14 13:43:41,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:41,239 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 13:43:41,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-14 13:43:41,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 13:43:41,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 13:43:41,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 13:43:41,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 13:43:41,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 13:43:59,165 WARN L233 SmtUtils]: Spent 17.83s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:44:18,219 WARN L233 SmtUtils]: Spent 19.05s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:44:37,741 WARN L233 SmtUtils]: Spent 18.81s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:44:57,880 WARN L233 SmtUtils]: Spent 19.73s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:45:18,748 WARN L233 SmtUtils]: Spent 20.55s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:46:27,823 WARN L233 SmtUtils]: Spent 1.15m on a formula simplification that was a NOOP. DAG size: 2165 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:47:52,731 WARN L233 SmtUtils]: Spent 1.41m on a formula simplification that was a NOOP. DAG size: 2394 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:48:57,917 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 2165 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:49:15,558 WARN L233 SmtUtils]: Spent 17.63s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:49:33,252 WARN L233 SmtUtils]: Spent 17.69s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:50:38,607 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 2165 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:50:56,346 WARN L233 SmtUtils]: Spent 17.73s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:51:14,022 WARN L233 SmtUtils]: Spent 17.66s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:52:19,195 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 2165 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:52:38,136 WARN L233 SmtUtils]: Spent 18.77s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:52:55,969 WARN L233 SmtUtils]: Spent 17.83s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 13:53:13,742 WARN L233 SmtUtils]: Spent 17.75s on a formula simplification that was a NOOP. DAG size: 1129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)