./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product39.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_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/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_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/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_53c8bdc6-70b3-471f-8ea8-743d260cca18/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 d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a --- 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 14:04:20,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:04:20,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:04:20,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:04:20,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:04:20,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:04:20,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:04:20,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:04:20,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:04:20,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:04:20,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:04:20,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:04:20,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:04:20,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:04:20,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:04:20,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:04:20,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:04:20,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:04:20,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:04:20,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:04:20,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:04:20,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:04:20,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:04:20,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:04:20,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:04:20,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:04:20,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:04:20,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:04:20,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:04:20,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:04:20,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:04:20,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:04:20,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:04:20,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:04:20,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:04:20,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:04:20,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:04:20,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:04:20,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:04:20,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:04:20,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:04:20,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:04:20,159 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:04:20,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:04:20,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:04:20,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:04:20,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:04:20,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:04:20,161 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:04:20,161 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:04:20,161 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:04:20,161 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:04:20,161 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:04:20,162 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:04:20,162 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:04:20,162 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:04:20,162 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:04:20,162 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:04:20,162 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:04:20,163 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:04:20,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:04:20,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:04:20,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:04:20,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:04:20,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:04:20,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:04:20,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:04:20,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:04:20,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:04:20,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:04:20,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:04:20,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:04:20,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:04:20,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:04:20,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:04:20,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:04:20,166 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:04:20,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:04:20,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:04:20,166 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:04:20,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:04:20,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:04:20,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:04:20,167 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_53c8bdc6-70b3-471f-8ea8-743d260cca18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a [2022-12-14 14:04:20,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:04:20,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:04:20,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:04:20,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:04:20,371 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:04:20,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2022-12-14 14:04:22,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:04:23,191 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:04:23,191 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2022-12-14 14:04:23,205 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/data/1fea66aa4/7c3723344cfc40a29ced6db01bd9a407/FLAG77f906978 [2022-12-14 14:04:23,219 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/data/1fea66aa4/7c3723344cfc40a29ced6db01bd9a407 [2022-12-14 14:04:23,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:04:23,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:04:23,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:04:23,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:04:23,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:04:23,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d9f7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23, skipping insertion in model container [2022-12-14 14:04:23,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:04:23,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:04:23,508 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,512 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,517 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,528 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,577 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_53c8bdc6-70b3-471f-8ea8-743d260cca18/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2022-12-14 14:04:23,691 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,695 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,696 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,697 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,701 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:04:23,721 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:04:23,733 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,734 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,736 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,740 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,753 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_53c8bdc6-70b3-471f-8ea8-743d260cca18/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2022-12-14 14:04:23,779 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,781 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,781 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,782 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,785 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:04:23,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:04:23,809 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:04:23,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23 WrapperNode [2022-12-14 14:04:23,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:04:23,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:04:23,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:04:23,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:04:23,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,872 INFO L138 Inliner]: procedures = 124, calls = 195, calls flagged for inlining = 47, calls inlined = 43, statements flattened = 813 [2022-12-14 14:04:23,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:04:23,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:04:23,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:04:23,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:04:23,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,910 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:04:23,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:04:23,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:04:23,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:04:23,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (1/1) ... [2022-12-14 14:04:23,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:04:23,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:04:23,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:04:23,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:04:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 14:04:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 14:04:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 14:04:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 14:04:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 14:04:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 14:04:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 14:04:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 14:04:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 14:04:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 14:04:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 14:04:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 14:04:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 14:04:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 14:04:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 14:04:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 14:04:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 14:04:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 14:04:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 14:04:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 14:04:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 14:04:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:04:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 14:04:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 14:04:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 14:04:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 14:04:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 14:04:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 14:04:23,986 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 14:04:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 14:04:23,986 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 14:04:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 14:04:23,986 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 14:04:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 14:04:23,986 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 14:04:23,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 14:04:23,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:04:23,987 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 14:04:23,987 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 14:04:23,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 14:04:23,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 14:04:23,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:04:23,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:04:24,132 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:04:24,133 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:04:24,657 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:04:24,982 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:04:24,983 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:04:24,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:04:24 BoogieIcfgContainer [2022-12-14 14:04:24,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:04:24,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:04:24,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:04:24,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:04:24,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:04:23" (1/3) ... [2022-12-14 14:04:24,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396fe352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:04:24, skipping insertion in model container [2022-12-14 14:04:24,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:04:23" (2/3) ... [2022-12-14 14:04:24,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396fe352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:04:24, skipping insertion in model container [2022-12-14 14:04:24,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:04:24" (3/3) ... [2022-12-14 14:04:24,994 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product39.cil.c [2022-12-14 14:04:25,010 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:04:25,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:04:25,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:04:25,056 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;@31fa12f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:04:25,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:04:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 92 states have internal predecessors, (119), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-12-14 14:04:25,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 14:04:25,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:04:25,071 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:04:25,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:04:25,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:04:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash -784872924, now seen corresponding path program 1 times [2022-12-14 14:04:25,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:04:25,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034899757] [2022-12-14 14:04:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:04:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:04:25,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:04:25,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034899757] [2022-12-14 14:04:25,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034899757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:04:25,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:04:25,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:04:25,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90522842] [2022-12-14 14:04:25,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:04:25,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:04:25,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:04:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:04:25,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:04:25,371 INFO L87 Difference]: Start difference. First operand has 156 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 92 states have internal predecessors, (119), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:04:25,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:04:25,466 INFO L93 Difference]: Finished difference Result 220 states and 293 transitions. [2022-12-14 14:04:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:04:25,469 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-12-14 14:04:25,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:04:25,478 INFO L225 Difference]: With dead ends: 220 [2022-12-14 14:04:25,478 INFO L226 Difference]: Without dead ends: 153 [2022-12-14 14:04:25,482 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 14:04:25,484 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:04:25,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:04:25,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-12-14 14:04:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-12-14 14:04:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 89 states have internal predecessors, (113), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 14:04:25,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 204 transitions. [2022-12-14 14:04:25,529 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 204 transitions. Word has length 61 [2022-12-14 14:04:25,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:04:25,530 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 204 transitions. [2022-12-14 14:04:25,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:04:25,531 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 204 transitions. [2022-12-14 14:04:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 14:04:25,534 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:04:25,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:04:25,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:04:25,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:04:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:04:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash -457142424, now seen corresponding path program 1 times [2022-12-14 14:04:25,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:04:25,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957433737] [2022-12-14 14:04:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:25,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:04:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:04:25,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:04:25,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957433737] [2022-12-14 14:04:25,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957433737] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:04:25,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:04:25,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:04:25,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079701645] [2022-12-14 14:04:25,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:04:25,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:04:25,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:04:25,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:04:25,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:04:25,700 INFO L87 Difference]: Start difference. First operand 153 states and 204 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:04:25,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:04:25,789 INFO L93 Difference]: Finished difference Result 216 states and 278 transitions. [2022-12-14 14:04:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:04:25,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-12-14 14:04:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:04:25,792 INFO L225 Difference]: With dead ends: 216 [2022-12-14 14:04:25,792 INFO L226 Difference]: Without dead ends: 155 [2022-12-14 14:04:25,793 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 14:04:25,795 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:04:25,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:04:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-12-14 14:04:25,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-12-14 14:04:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 91 states have internal predecessors, (115), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 14:04:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 206 transitions. [2022-12-14 14:04:25,812 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 206 transitions. Word has length 62 [2022-12-14 14:04:25,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:04:25,813 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 206 transitions. [2022-12-14 14:04:25,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:04:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 206 transitions. [2022-12-14 14:04:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 14:04:25,815 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:04:25,815 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] [2022-12-14 14:04:25,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:04:25,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:04:25,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:04:25,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1223654139, now seen corresponding path program 1 times [2022-12-14 14:04:25,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:04:25,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346892449] [2022-12-14 14:04:25,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:25,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:04:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:04:25,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:04:25,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346892449] [2022-12-14 14:04:25,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346892449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:04:25,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:04:25,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:04:25,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13986471] [2022-12-14 14:04:25,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:04:25,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:04:25,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:04:25,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:04:25,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:04:25,903 INFO L87 Difference]: Start difference. First operand 155 states and 206 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:04:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:04:25,983 INFO L93 Difference]: Finished difference Result 345 states and 479 transitions. [2022-12-14 14:04:25,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:04:25,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-12-14 14:04:25,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:04:25,986 INFO L225 Difference]: With dead ends: 345 [2022-12-14 14:04:25,986 INFO L226 Difference]: Without dead ends: 208 [2022-12-14 14:04:25,988 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 14:04:25,989 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 59 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:04:25,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 364 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:04:25,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-14 14:04:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 203. [2022-12-14 14:04:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 123 states have (on average 1.3821138211382114) internal successors, (170), 125 states have internal predecessors, (170), 60 states have call successors, (60), 19 states have call predecessors, (60), 19 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-12-14 14:04:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 289 transitions. [2022-12-14 14:04:26,002 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 289 transitions. Word has length 67 [2022-12-14 14:04:26,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:04:26,003 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 289 transitions. [2022-12-14 14:04:26,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:04:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 289 transitions. [2022-12-14 14:04:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 14:04:26,004 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:04:26,004 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] [2022-12-14 14:04:26,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:04:26,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:04:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:04:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1446333597, now seen corresponding path program 1 times [2022-12-14 14:04:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:04:26,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881763595] [2022-12-14 14:04:26,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:26,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:04:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:04:26,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:04:26,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881763595] [2022-12-14 14:04:26,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881763595] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:04:26,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300514761] [2022-12-14 14:04:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:26,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:04:26,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:04:26,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:04:26,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:04:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:26,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:04:26,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:04:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:04:26,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:04:26,424 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:04:26,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300514761] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:04:26,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1401851443] [2022-12-14 14:04:26,439 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2022-12-14 14:04:26,439 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:04:26,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:04:26,445 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:04:26,446 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:05:01,230 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 14:05:01,516 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:05:01,795 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 458 for LOIs [2022-12-14 14:05:22,734 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 448 for LOIs [2022-12-14 14:05:23,013 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 456 for LOIs [2022-12-14 14:05:26,340 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 251 for LOIs [2022-12-14 14:05:29,391 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 242 for LOIs [2022-12-14 14:05:29,420 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 239 for LOIs [2022-12-14 14:05:29,455 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 447 for LOIs [2022-12-14 14:05:30,110 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 436 for LOIs [2022-12-14 14:05:30,376 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:07:12,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1401851443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:07:12,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:07:12,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-12-14 14:07:12,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837325634] [2022-12-14 14:07:12,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:07:12,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 14:07:12,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:07:12,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 14:07:12,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2819, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 14:07:12,842 INFO L87 Difference]: Start difference. First operand 203 states and 289 transitions. Second operand has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:07:54,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:07:54,370 INFO L93 Difference]: Finished difference Result 586 states and 917 transitions. [2022-12-14 14:07:54,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 14:07:54,370 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 68 [2022-12-14 14:07:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:07:54,373 INFO L225 Difference]: With dead ends: 586 [2022-12-14 14:07:54,373 INFO L226 Difference]: Without dead ends: 401 [2022-12-14 14:07:54,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 125.1s TimeCoverageRelationStatistics Valid=222, Invalid=3938, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 14:07:54,375 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 220 mSDsluCounter, 4943 mSDsCounter, 0 mSdLazyCounter, 6934 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 5182 SdHoareTripleChecker+Invalid, 6963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:07:54,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 5182 Invalid, 6963 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [29 Valid, 6934 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2022-12-14 14:07:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-12-14 14:07:54,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 297. [2022-12-14 14:07:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 201 states have (on average 1.4427860696517414) internal successors, (290), 204 states have internal predecessors, (290), 69 states have call successors, (69), 28 states have call predecessors, (69), 26 states have return successors, (69), 64 states have call predecessors, (69), 68 states have call successors, (69) [2022-12-14 14:07:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 428 transitions. [2022-12-14 14:07:54,517 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 428 transitions. Word has length 68 [2022-12-14 14:07:54,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:07:54,517 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 428 transitions. [2022-12-14 14:07:54,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:07:54,517 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 428 transitions. [2022-12-14 14:07:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 14:07:54,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:07:54,519 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:07:54,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:07:54,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:07:54,720 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:07:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:07:54,721 INFO L85 PathProgramCache]: Analyzing trace with hash -793150608, now seen corresponding path program 1 times [2022-12-14 14:07:54,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:07:54,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371166499] [2022-12-14 14:07:54,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:54,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:07:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:07:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:07:54,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:07:54,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371166499] [2022-12-14 14:07:54,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371166499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:07:54,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:07:54,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:07:54,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516429394] [2022-12-14 14:07:54,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:07:54,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:07:54,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:07:54,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:07:54,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:07:54,781 INFO L87 Difference]: Start difference. First operand 297 states and 428 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:07:55,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:07:55,128 INFO L93 Difference]: Finished difference Result 681 states and 1012 transitions. [2022-12-14 14:07:55,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:07:55,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-12-14 14:07:55,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:07:55,132 INFO L225 Difference]: With dead ends: 681 [2022-12-14 14:07:55,132 INFO L226 Difference]: Without dead ends: 422 [2022-12-14 14:07:55,133 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 14:07:55,134 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 57 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:07:55,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 381 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:07:55,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-12-14 14:07:55,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 415. [2022-12-14 14:07:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 288 states have (on average 1.4722222222222223) internal successors, (424), 291 states have internal predecessors, (424), 100 states have call successors, (100), 28 states have call predecessors, (100), 26 states have return successors, (100), 95 states have call predecessors, (100), 99 states have call successors, (100) [2022-12-14 14:07:55,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 624 transitions. [2022-12-14 14:07:55,326 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 624 transitions. Word has length 73 [2022-12-14 14:07:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:07:55,326 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 624 transitions. [2022-12-14 14:07:55,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:07:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 624 transitions. [2022-12-14 14:07:55,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 14:07:55,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:07:55,328 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:07:55,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:07:55,329 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:07:55,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:07:55,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1623562059, now seen corresponding path program 1 times [2022-12-14 14:07:55,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:07:55,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126576970] [2022-12-14 14:07:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:55,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:07:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:07:55,414 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:07:55,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:07:55,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126576970] [2022-12-14 14:07:55,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126576970] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:07:55,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928760821] [2022-12-14 14:07:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:55,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:07:55,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:07:55,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:07:55,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:07:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:07:55,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:07:55,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:07:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:07:55,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:07:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:07:55,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928760821] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:07:55,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1251808853] [2022-12-14 14:07:55,674 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 14:07:55,674 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:07:55,674 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:07:55,674 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:07:55,675 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:08:27,204 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:08:27,496 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 14:08:27,784 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:09:01,483 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 570 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:09:11,194 WARN L233 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 572 DAG size of output: 397 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:09:16,598 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 570 DAG size of output: 395 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:09:28,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1251808853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:09:28,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:09:28,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 14:09:28,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959890559] [2022-12-14 14:09:28,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:09:28,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 14:09:28,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:09:28,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 14:09:28,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:09:28,554 INFO L87 Difference]: Start difference. First operand 415 states and 624 transitions. Second operand has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 14:09:59,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:59,896 INFO L93 Difference]: Finished difference Result 798 states and 1239 transitions. [2022-12-14 14:09:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 14:09:59,897 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 74 [2022-12-14 14:09:59,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:59,899 INFO L225 Difference]: With dead ends: 798 [2022-12-14 14:09:59,899 INFO L226 Difference]: Without dead ends: 513 [2022-12-14 14:09:59,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 85.3s TimeCoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 14:09:59,901 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 259 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 2054 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:59,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 2594 Invalid, 2076 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 2054 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 14:09:59,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-12-14 14:10:00,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 443. [2022-12-14 14:10:00,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 313 states have (on average 1.4696485623003195) internal successors, (460), 317 states have internal predecessors, (460), 102 states have call successors, (102), 29 states have call predecessors, (102), 27 states have return successors, (102), 96 states have call predecessors, (102), 101 states have call successors, (102) [2022-12-14 14:10:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 664 transitions. [2022-12-14 14:10:00,151 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 664 transitions. Word has length 74 [2022-12-14 14:10:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:10:00,151 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 664 transitions. [2022-12-14 14:10:00,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 14:10:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 664 transitions. [2022-12-14 14:10:00,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 14:10:00,153 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:10:00,153 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:10:00,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:10:00,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 14:10:00,355 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:10:00,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:10:00,356 INFO L85 PathProgramCache]: Analyzing trace with hash 144433691, now seen corresponding path program 1 times [2022-12-14 14:10:00,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:10:00,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804569102] [2022-12-14 14:10:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:10:00,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:10:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:10:00,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:10:00,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:10:00,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804569102] [2022-12-14 14:10:00,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804569102] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:10:00,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294163311] [2022-12-14 14:10:00,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:10:00,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:10:00,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:10:00,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:10:00,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:10:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:10:00,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:10:00,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:10:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:10:00,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:10:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:10:00,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294163311] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:10:00,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [586793592] [2022-12-14 14:10:00,757 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 14:10:00,757 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:10:00,757 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:10:00,757 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:10:00,757 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:10:30,329 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 14:10:30,614 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 229 for LOIs [2022-12-14 14:10:30,671 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 228 for LOIs [2022-12-14 14:10:30,727 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 218 for LOIs [2022-12-14 14:10:31,776 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-12-14 14:10:31,831 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-12-14 14:10:31,861 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:10:32,155 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 218 for LOIs [2022-12-14 14:10:32,628 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 223 for LOIs [2022-12-14 14:10:34,433 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-12-14 14:10:34,462 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 416 for LOIs [2022-12-14 14:10:35,798 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 198 for LOIs [2022-12-14 14:10:35,826 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:11:39,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [586793592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:39,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:11:39,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 14:11:39,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186514114] [2022-12-14 14:11:39,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:39,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 14:11:39,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:39,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 14:11:39,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=3267, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 14:11:39,543 INFO L87 Difference]: Start difference. First operand 443 states and 664 transitions. Second operand has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 14:12:16,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:12:16,307 INFO L93 Difference]: Finished difference Result 902 states and 1380 transitions. [2022-12-14 14:12:16,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-14 14:12:16,308 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 77 [2022-12-14 14:12:16,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:12:16,310 INFO L225 Difference]: With dead ends: 902 [2022-12-14 14:12:16,310 INFO L226 Difference]: Without dead ends: 612 [2022-12-14 14:12:16,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 81.3s TimeCoverageRelationStatistics Valid=237, Invalid=4593, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 14:12:16,312 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 249 mSDsluCounter, 4991 mSDsCounter, 0 mSdLazyCounter, 7330 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 5205 SdHoareTripleChecker+Invalid, 7358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 7330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:12:16,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 5205 Invalid, 7358 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [28 Valid, 7330 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2022-12-14 14:12:16,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-12-14 14:12:17,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 527. [2022-12-14 14:12:17,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 377 states have (on average 1.4509283819628647) internal successors, (547), 383 states have internal predecessors, (547), 114 states have call successors, (114), 39 states have call predecessors, (114), 35 states have return successors, (114), 104 states have call predecessors, (114), 113 states have call successors, (114) [2022-12-14 14:12:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 775 transitions. [2022-12-14 14:12:17,007 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 775 transitions. Word has length 77 [2022-12-14 14:12:17,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:12:17,007 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 775 transitions. [2022-12-14 14:12:17,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 14:12:17,007 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 775 transitions. [2022-12-14 14:12:17,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 14:12:17,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:12:17,008 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:12:17,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 14:12:17,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 14:12:17,210 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:12:17,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:12:17,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1839455003, now seen corresponding path program 1 times [2022-12-14 14:12:17,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:12:17,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474857768] [2022-12-14 14:12:17,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:12:17,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:12:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:12:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:12:17,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:12:17,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474857768] [2022-12-14 14:12:17,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474857768] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:12:17,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017567278] [2022-12-14 14:12:17,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:12:17,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:12:17,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:12:17,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:12:17,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:12:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:12:17,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:12:17,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:12:17,577 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:12:17,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:12:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:12:17,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017567278] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:12:17,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1328214971] [2022-12-14 14:12:17,636 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 14:12:17,636 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:12:17,636 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:12:17,637 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:12:17,637 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:13:32,957 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:13:33,240 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 439 for LOIs [2022-12-14 14:13:33,520 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 452 for LOIs [2022-12-14 14:13:55,332 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 442 for LOIs [2022-12-14 14:13:55,638 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 450 for LOIs [2022-12-14 14:13:58,964 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 247 for LOIs [2022-12-14 14:14:04,503 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 434 for LOIs [2022-12-14 14:14:04,741 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 235 for LOIs [2022-12-14 14:14:04,775 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 444 for LOIs [2022-12-14 14:14:05,370 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 430 for LOIs [2022-12-14 14:14:05,631 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:16:13,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1328214971] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:13,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:16:13,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [6, 5, 5] total 62 [2022-12-14 14:16:13,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124069490] [2022-12-14 14:16:13,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:13,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 14:16:13,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 14:16:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=3596, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 14:16:13,719 INFO L87 Difference]: Start difference. First operand 527 states and 775 transitions. Second operand has 54 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 33 states have internal predecessors, (39), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 14:16:57,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:57,482 INFO L93 Difference]: Finished difference Result 1016 states and 1545 transitions. [2022-12-14 14:16:57,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 14:16:57,483 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 33 states have internal predecessors, (39), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 79 [2022-12-14 14:16:57,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:57,485 INFO L225 Difference]: With dead ends: 1016 [2022-12-14 14:16:57,485 INFO L226 Difference]: Without dead ends: 731 [2022-12-14 14:16:57,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 179 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 152.2s TimeCoverageRelationStatistics Valid=268, Invalid=4988, Unknown=0, NotChecked=0, Total=5256 [2022-12-14 14:16:57,487 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 351 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 6846 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 6903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 6846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:57,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 4881 Invalid, 6903 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [57 Valid, 6846 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2022-12-14 14:16:57,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-12-14 14:16:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 531. [2022-12-14 14:16:57,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 378 states have (on average 1.4523809523809523) internal successors, (549), 384 states have internal predecessors, (549), 116 states have call successors, (116), 40 states have call predecessors, (116), 36 states have return successors, (116), 106 states have call predecessors, (116), 115 states have call successors, (116) [2022-12-14 14:16:57,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 781 transitions. [2022-12-14 14:16:57,971 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 781 transitions. Word has length 79 [2022-12-14 14:16:57,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:57,972 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 781 transitions. [2022-12-14 14:16:57,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 33 states have internal predecessors, (39), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 14:16:57,972 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 781 transitions. [2022-12-14 14:16:57,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 14:16:57,973 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:57,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:16:57,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:16:58,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 14:16:58,176 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:16:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash -487855566, now seen corresponding path program 1 times [2022-12-14 14:16:58,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:58,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787199995] [2022-12-14 14:16:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:58,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:16:58,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:58,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787199995] [2022-12-14 14:16:58,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787199995] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:16:58,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691125645] [2022-12-14 14:16:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:58,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:16:58,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:16:58,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:16:58,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53c8bdc6-70b3-471f-8ea8-743d260cca18/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:16:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:58,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:16:58,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:16:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:16:58,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:16:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:16:58,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691125645] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:16:58,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [623571872] [2022-12-14 14:16:58,637 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 14:16:58,637 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:16:58,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:16:58,638 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:16:58,638 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:18:39,804 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 14:18:40,098 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 230 for LOIs [2022-12-14 14:18:40,157 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 231 for LOIs [2022-12-14 14:18:40,216 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 407 for LOIs