./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/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_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/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_38e27b8b-5c54-4e78-a829-5db8d15d5879/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 bcfdffd5743ab46e6f5628bffe82029f1c91fa1aa61e5033c157235a6e9c82be --- 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 06:25:39,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:25:39,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:25:40,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:25:40,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:25:40,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:25:40,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:25:40,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:25:40,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:25:40,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:25:40,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:25:40,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:25:40,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:25:40,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:25:40,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:25:40,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:25:40,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:25:40,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:25:40,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:25:40,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:25:40,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:25:40,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:25:40,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:25:40,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:25:40,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:25:40,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:25:40,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:25:40,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:25:40,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:25:40,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:25:40,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:25:40,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:25:40,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:25:40,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:25:40,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:25:40,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:25:40,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:25:40,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:25:40,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:25:40,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:25:40,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:25:40,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:25:40,091 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:25:40,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:25:40,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:25:40,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:25:40,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:25:40,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:25:40,093 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:25:40,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:25:40,093 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:25:40,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:25:40,093 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:25:40,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:25:40,093 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:25:40,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:25:40,093 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:25:40,093 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:25:40,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:25:40,094 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:25:40,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:25:40,094 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:25:40,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:25:40,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:25:40,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:25:40,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:25:40,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:25:40,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:25:40,096 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:25:40,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:25:40,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:25:40,096 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:25:40,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:25:40,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:25:40,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:25:40,096 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_38e27b8b-5c54-4e78-a829-5db8d15d5879/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcfdffd5743ab46e6f5628bffe82029f1c91fa1aa61e5033c157235a6e9c82be [2022-12-14 06:25:40,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:25:40,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:25:40,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:25:40,275 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:25:40,276 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:25:40,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product14.cil.c [2022-12-14 06:25:42,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:25:43,081 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:25:43,081 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c [2022-12-14 06:25:43,096 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/data/e692c824c/399e3d84d7044ebf87ae895f2ca23ef3/FLAGaf867ceb8 [2022-12-14 06:25:43,108 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/data/e692c824c/399e3d84d7044ebf87ae895f2ca23ef3 [2022-12-14 06:25:43,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:25:43,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:25:43,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:25:43,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:25:43,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:25:43,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6318642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43, skipping insertion in model container [2022-12-14 06:25:43,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:25:43,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:25:43,315 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,319 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,323 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,336 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,338 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,440 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,445 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,445 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,446 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,460 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_38e27b8b-5c54-4e78-a829-5db8d15d5879/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c[43937,43950] [2022-12-14 06:25:43,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:25:43,527 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:25:43,541 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,545 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,548 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,548 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,567 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,568 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,569 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,570 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:25:43,575 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_38e27b8b-5c54-4e78-a829-5db8d15d5879/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c[43937,43950] [2022-12-14 06:25:43,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:25:43,610 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:25:43,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43 WrapperNode [2022-12-14 06:25:43,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:25:43,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:25:43,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:25:43,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:25:43,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,675 INFO L138 Inliner]: procedures = 126, calls = 212, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 878 [2022-12-14 06:25:43,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:25:43,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:25:43,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:25:43,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:25:43,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,714 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:25:43,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:25:43,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:25:43,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:25:43,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (1/1) ... [2022-12-14 06:25:43,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:25:43,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:25:43,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:25:43,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:25:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 06:25:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 06:25:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 06:25:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 06:25:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 06:25:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 06:25:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 06:25:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 06:25:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 06:25:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 06:25:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 06:25:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 06:25:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 06:25:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 06:25:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 06:25:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 06:25:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 06:25:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 06:25:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 06:25:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 06:25:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 06:25:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 06:25:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 06:25:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:25:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 06:25:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 06:25:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 06:25:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 06:25:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 06:25:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 06:25:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 06:25:43,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 06:25:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 06:25:43,796 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 06:25:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 06:25:43,796 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 06:25:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 06:25:43,796 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 06:25:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 06:25:43,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 06:25:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 06:25:43,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 06:25:43,797 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 06:25:43,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 06:25:43,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:25:43,797 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 06:25:43,797 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 06:25:43,797 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 06:25:43,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 06:25:43,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:25:43,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:25:43,948 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:25:43,949 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:25:44,504 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:25:44,801 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:25:44,801 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:25:44,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:25:44 BoogieIcfgContainer [2022-12-14 06:25:44,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:25:44,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:25:44,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:25:44,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:25:44,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:25:43" (1/3) ... [2022-12-14 06:25:44,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221953d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:25:44, skipping insertion in model container [2022-12-14 06:25:44,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:43" (2/3) ... [2022-12-14 06:25:44,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221953d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:25:44, skipping insertion in model container [2022-12-14 06:25:44,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:25:44" (3/3) ... [2022-12-14 06:25:44,809 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product14.cil.c [2022-12-14 06:25:44,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:25:44,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:25:44,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:25:44,885 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;@5c1d1cb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:25:44,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:25:44,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 109 states have internal predecessors, (138), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 06:25:44,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 06:25:44,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:44,904 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:44,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:25:44,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:44,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1644481432, now seen corresponding path program 1 times [2022-12-14 06:25:44,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:44,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402228149] [2022-12-14 06:25:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:44,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:25:45,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:45,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402228149] [2022-12-14 06:25:45,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402228149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:45,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:45,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:25:45,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15520484] [2022-12-14 06:25:45,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:45,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:25:45,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:45,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:25:45,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:25:45,199 INFO L87 Difference]: Start difference. First operand has 185 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 109 states have internal predecessors, (138), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:25:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:45,303 INFO L93 Difference]: Finished difference Result 278 states and 371 transitions. [2022-12-14 06:25:45,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:25:45,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 79 [2022-12-14 06:25:45,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:45,313 INFO L225 Difference]: With dead ends: 278 [2022-12-14 06:25:45,313 INFO L226 Difference]: Without dead ends: 182 [2022-12-14 06:25:45,316 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 06:25:45,318 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:45,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:45,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-12-14 06:25:45,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-12-14 06:25:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 102 states have (on average 1.2941176470588236) internal successors, (132), 106 states have internal predecessors, (132), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-12-14 06:25:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 243 transitions. [2022-12-14 06:25:45,359 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 243 transitions. Word has length 79 [2022-12-14 06:25:45,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:45,360 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 243 transitions. [2022-12-14 06:25:45,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:25:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 243 transitions. [2022-12-14 06:25:45,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 06:25:45,363 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:45,363 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:45,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:25:45,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:25:45,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:45,364 INFO L85 PathProgramCache]: Analyzing trace with hash -355913382, now seen corresponding path program 1 times [2022-12-14 06:25:45,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:45,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594016966] [2022-12-14 06:25:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:45,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:25:45,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:45,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594016966] [2022-12-14 06:25:45,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594016966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:45,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:45,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:25:45,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501240818] [2022-12-14 06:25:45,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:45,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:25:45,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:45,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:25:45,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:25:45,565 INFO L87 Difference]: Start difference. First operand 182 states and 243 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:25:45,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:45,668 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2022-12-14 06:25:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:25:45,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 80 [2022-12-14 06:25:45,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:45,671 INFO L225 Difference]: With dead ends: 274 [2022-12-14 06:25:45,671 INFO L226 Difference]: Without dead ends: 184 [2022-12-14 06:25:45,672 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 06:25:45,673 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:45,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:45,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-12-14 06:25:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-12-14 06:25:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 108 states have internal predecessors, (134), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-12-14 06:25:45,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 245 transitions. [2022-12-14 06:25:45,692 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 245 transitions. Word has length 80 [2022-12-14 06:25:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:45,692 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 245 transitions. [2022-12-14 06:25:45,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:25:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 245 transitions. [2022-12-14 06:25:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:25:45,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:45,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:45,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:25:45,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:25:45,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash 737540014, now seen corresponding path program 1 times [2022-12-14 06:25:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:45,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816410567] [2022-12-14 06:25:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:45,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:25:45,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:45,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816410567] [2022-12-14 06:25:45,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816410567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:45,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:45,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:25:45,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542695446] [2022-12-14 06:25:45,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:45,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:25:45,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:45,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:25:45,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:25:45,796 INFO L87 Difference]: Start difference. First operand 184 states and 245 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:25:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:45,894 INFO L93 Difference]: Finished difference Result 403 states and 557 transitions. [2022-12-14 06:25:45,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:25:45,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-12-14 06:25:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:45,896 INFO L225 Difference]: With dead ends: 403 [2022-12-14 06:25:45,896 INFO L226 Difference]: Without dead ends: 237 [2022-12-14 06:25:45,898 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 06:25:45,899 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 59 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:45,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 440 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-12-14 06:25:45,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2022-12-14 06:25:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 138 states have (on average 1.3695652173913044) internal successors, (189), 142 states have internal predecessors, (189), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2022-12-14 06:25:45,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 328 transitions. [2022-12-14 06:25:45,923 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 328 transitions. Word has length 85 [2022-12-14 06:25:45,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:45,924 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 328 transitions. [2022-12-14 06:25:45,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:25:45,924 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 328 transitions. [2022-12-14 06:25:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 06:25:45,926 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:45,927 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:45,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:25:45,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:25:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:45,928 INFO L85 PathProgramCache]: Analyzing trace with hash -7367202, now seen corresponding path program 1 times [2022-12-14 06:25:45,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:45,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363867088] [2022-12-14 06:25:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:45,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:25:46,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:46,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363867088] [2022-12-14 06:25:46,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363867088] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:25:46,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327970305] [2022-12-14 06:25:46,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:46,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:25:46,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:25:46,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:25:46,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:25:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:46,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:25:46,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:25:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:25:46,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:25:46,435 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:25:46,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327970305] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:25:46,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [842490010] [2022-12-14 06:25:46,455 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 06:25:46,455 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:25:46,459 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:25:46,464 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:25:46,465 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:26:08,986 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:26:09,275 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 252 for LOIs [2022-12-14 06:26:10,748 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 238 for LOIs [2022-12-14 06:26:10,785 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:26:11,078 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2022-12-14 06:26:11,747 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 253 for LOIs [2022-12-14 06:26:20,622 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 238 for LOIs [2022-12-14 06:26:20,657 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 481 for LOIs [2022-12-14 06:26:25,166 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 242 for LOIs [2022-12-14 06:26:25,201 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 230 for LOIs [2022-12-14 06:26:25,237 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:27:06,528 WARN L233 SmtUtils]: Spent 11.27s on a formula simplification. DAG size of input: 581 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:27:13,806 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 583 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:27:26,654 WARN L233 SmtUtils]: Spent 7.94s on a formula simplification. DAG size of input: 476 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:28:07,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [842490010] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:28:07,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:28:07,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [4, 4, 4] total 57 [2022-12-14 06:28:07,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643354323] [2022-12-14 06:28:07,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:28:07,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-14 06:28:07,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:28:07,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-14 06:28:07,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=3042, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 06:28:07,097 INFO L87 Difference]: Start difference. First operand 232 states and 328 transitions. Second operand has 52 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 31 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 06:28:16,111 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 577 DAG size of output: 446 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:28:22,216 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 584 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:28:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:28:44,703 INFO L93 Difference]: Finished difference Result 596 states and 895 transitions. [2022-12-14 06:28:44,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 06:28:44,704 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 31 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 86 [2022-12-14 06:28:44,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:28:44,706 INFO L225 Difference]: With dead ends: 596 [2022-12-14 06:28:44,706 INFO L226 Difference]: Without dead ends: 382 [2022-12-14 06:28:44,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 927 ImplicationChecksByTransitivity, 119.3s TimeCoverageRelationStatistics Valid=193, Invalid=3839, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 06:28:44,708 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 168 mSDsluCounter, 5731 mSDsCounter, 0 mSdLazyCounter, 7348 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 5984 SdHoareTripleChecker+Invalid, 7369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 7348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:28:44,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 5984 Invalid, 7369 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [21 Valid, 7348 Invalid, 0 Unknown, 0 Unchecked, 19.7s Time] [2022-12-14 06:28:44,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-12-14 06:28:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 329. [2022-12-14 06:28:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 214 states have (on average 1.411214953271028) internal successors, (302), 219 states have internal predecessors, (302), 84 states have call successors, (84), 32 states have call predecessors, (84), 30 states have return successors, (84), 79 states have call predecessors, (84), 83 states have call successors, (84) [2022-12-14 06:28:44,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 470 transitions. [2022-12-14 06:28:44,818 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 470 transitions. Word has length 86 [2022-12-14 06:28:44,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:28:44,818 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 470 transitions. [2022-12-14 06:28:44,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 31 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 06:28:44,819 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 470 transitions. [2022-12-14 06:28:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 06:28:44,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:28:44,820 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:28:44,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:28:45,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:28:45,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:28:45,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:28:45,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1683658698, now seen corresponding path program 1 times [2022-12-14 06:28:45,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:28:45,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579305584] [2022-12-14 06:28:45,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:28:45,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:28:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:28:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 06:28:45,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:28:45,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579305584] [2022-12-14 06:28:45,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579305584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:28:45,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:28:45,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:28:45,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093198304] [2022-12-14 06:28:45,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:28:45,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:28:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:28:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:28:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:28:45,109 INFO L87 Difference]: Start difference. First operand 329 states and 470 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:28:45,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:28:45,327 INFO L93 Difference]: Finished difference Result 782 states and 1162 transitions. [2022-12-14 06:28:45,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:28:45,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2022-12-14 06:28:45,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:28:45,329 INFO L225 Difference]: With dead ends: 782 [2022-12-14 06:28:45,329 INFO L226 Difference]: Without dead ends: 479 [2022-12-14 06:28:45,330 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 06:28:45,331 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 57 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:28:45,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 452 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:28:45,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-12-14 06:28:45,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 472. [2022-12-14 06:28:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 326 states have (on average 1.48159509202454) internal successors, (483), 331 states have internal predecessors, (483), 115 states have call successors, (115), 32 states have call predecessors, (115), 30 states have return successors, (115), 110 states have call predecessors, (115), 114 states have call successors, (115) [2022-12-14 06:28:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 713 transitions. [2022-12-14 06:28:45,484 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 713 transitions. Word has length 91 [2022-12-14 06:28:45,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:28:45,485 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 713 transitions. [2022-12-14 06:28:45,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:28:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 713 transitions. [2022-12-14 06:28:45,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 06:28:45,486 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:28:45,486 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:28:45,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:28:45,487 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:28:45,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:28:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash -144683651, now seen corresponding path program 1 times [2022-12-14 06:28:45,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:28:45,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495595241] [2022-12-14 06:28:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:28:45,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:28:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:28:45,573 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 06:28:45,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:28:45,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495595241] [2022-12-14 06:28:45,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495595241] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:28:45,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540606754] [2022-12-14 06:28:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:28:45,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:28:45,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:28:45,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:28:45,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:28:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:28:45,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:28:45,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:28:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 06:28:45,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:28:45,841 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 06:28:45,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540606754] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:28:45,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [475729582] [2022-12-14 06:28:45,846 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 06:28:45,846 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:28:45,847 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:28:45,847 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:28:45,847 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:29:17,287 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:29:17,585 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 251 for LOIs [2022-12-14 06:29:19,000 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 06:29:19,037 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:29:19,322 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 251 for LOIs [2022-12-14 06:29:19,950 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 252 for LOIs [2022-12-14 06:29:26,222 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 447 for LOIs [2022-12-14 06:29:26,796 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-12-14 06:29:28,542 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 241 for LOIs [2022-12-14 06:29:28,578 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 227 for LOIs [2022-12-14 06:29:28,613 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:30:10,819 WARN L233 SmtUtils]: Spent 12.13s on a formula simplification. DAG size of input: 587 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:30:17,183 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 589 DAG size of output: 339 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:30:51,247 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 447 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:30:58,337 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 466 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:31:21,014 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 565 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:31:23,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [475729582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:31:23,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:31:23,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [4, 4, 4] total 61 [2022-12-14 06:31:23,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112319989] [2022-12-14 06:31:23,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:31:23,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-14 06:31:23,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:31:23,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-14 06:31:23,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=3488, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 06:31:23,401 INFO L87 Difference]: Start difference. First operand 472 states and 713 transitions. Second operand has 56 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 34 states have internal predecessors, (47), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 06:31:35,378 WARN L233 SmtUtils]: Spent 9.74s on a formula simplification. DAG size of input: 566 DAG size of output: 450 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:31:54,696 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 584 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:32:01,132 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 591 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:32:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:32:29,242 INFO L93 Difference]: Finished difference Result 950 states and 1464 transitions. [2022-12-14 06:32:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-14 06:32:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 34 states have internal predecessors, (47), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 92 [2022-12-14 06:32:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:32:29,246 INFO L225 Difference]: With dead ends: 950 [2022-12-14 06:32:29,246 INFO L226 Difference]: Without dead ends: 636 [2022-12-14 06:32:29,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 217 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 153.9s TimeCoverageRelationStatistics Valid=279, Invalid=5421, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 06:32:29,248 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 259 mSDsluCounter, 6265 mSDsCounter, 0 mSdLazyCounter, 8582 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 6527 SdHoareTripleChecker+Invalid, 8617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 8582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:32:29,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 6527 Invalid, 8617 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [35 Valid, 8582 Invalid, 0 Unknown, 0 Unchecked, 26.1s Time] [2022-12-14 06:32:29,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-12-14 06:32:29,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 504. [2022-12-14 06:32:29,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 354 states have (on average 1.4830508474576272) internal successors, (525), 361 states have internal predecessors, (525), 118 states have call successors, (118), 33 states have call predecessors, (118), 31 states have return successors, (118), 111 states have call predecessors, (118), 117 states have call successors, (118) [2022-12-14 06:32:29,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 761 transitions. [2022-12-14 06:32:29,448 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 761 transitions. Word has length 92 [2022-12-14 06:32:29,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:32:29,449 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 761 transitions. [2022-12-14 06:32:29,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 34 states have internal predecessors, (47), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 06:32:29,449 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 761 transitions. [2022-12-14 06:32:29,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 06:32:29,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:32:29,450 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:32:29,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:32:29,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:32:29,652 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:32:29,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:32:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1745460986, now seen corresponding path program 1 times [2022-12-14 06:32:29,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:32:29,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255493849] [2022-12-14 06:32:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:32:29,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:32:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:32:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:32:29,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:32:29,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255493849] [2022-12-14 06:32:29,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255493849] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:32:29,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136713769] [2022-12-14 06:32:29,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:32:29,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:32:29,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:32:29,826 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:32:29,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:32:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:32:30,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:32:30,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:32:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:32:30,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:32:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:32:30,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136713769] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:32:30,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [266320505] [2022-12-14 06:32:30,118 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-12-14 06:32:30,118 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:32:30,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:32:30,118 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:32:30,119 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:33:23,026 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 06:33:23,350 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 06:33:23,411 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 259 for LOIs [2022-12-14 06:33:23,483 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 454 for LOIs [2022-12-14 06:33:23,812 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:33:24,108 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:34:01,844 WARN L233 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 623 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:34:13,922 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 575 DAG size of output: 402 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:34:26,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [266320505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:34:26,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:34:26,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 06:34:26,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725664752] [2022-12-14 06:34:26,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:34:26,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 06:34:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:34:26,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 06:34:26,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 06:34:26,802 INFO L87 Difference]: Start difference. First operand 504 states and 761 transitions. Second operand has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 06:34:41,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:34:41,942 INFO L93 Difference]: Finished difference Result 981 states and 1531 transitions. [2022-12-14 06:34:41,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 06:34:41,943 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 95 [2022-12-14 06:34:41,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:34:41,946 INFO L225 Difference]: With dead ends: 981 [2022-12-14 06:34:41,946 INFO L226 Difference]: Without dead ends: 667 [2022-12-14 06:34:41,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 66.7s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 06:34:41,947 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 112 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 3379 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 3389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:34:41,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 3677 Invalid, 3389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3379 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 06:34:41,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-12-14 06:34:42,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 577. [2022-12-14 06:34:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 419 states have (on average 1.4988066825775657) internal successors, (628), 428 states have internal predecessors, (628), 123 states have call successors, (123), 36 states have call predecessors, (123), 34 states have return successors, (123), 114 states have call predecessors, (123), 122 states have call successors, (123) [2022-12-14 06:34:42,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 874 transitions. [2022-12-14 06:34:42,258 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 874 transitions. Word has length 95 [2022-12-14 06:34:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:34:42,258 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 874 transitions. [2022-12-14 06:34:42,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 06:34:42,258 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 874 transitions. [2022-12-14 06:34:42,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 06:34:42,260 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:34:42,260 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:34:42,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:34:42,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 06:34:42,460 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:34:42,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:34:42,461 INFO L85 PathProgramCache]: Analyzing trace with hash 336001222, now seen corresponding path program 1 times [2022-12-14 06:34:42,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:34:42,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837941295] [2022-12-14 06:34:42,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:42,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:34:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:43,108 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 06:34:43,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:34:43,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837941295] [2022-12-14 06:34:43,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837941295] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:34:43,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583284450] [2022-12-14 06:34:43,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:43,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:34:43,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:34:43,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:34:43,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:34:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:43,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:34:43,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:34:43,332 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 06:34:43,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:34:43,413 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 06:34:43,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583284450] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:34:43,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1099525115] [2022-12-14 06:34:43,416 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 06:34:43,416 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:34:43,417 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:34:43,417 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:34:43,417 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:35:26,066 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:35:26,350 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-12-14 06:35:27,749 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 06:35:27,784 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:35:28,080 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 248 for LOIs [2022-12-14 06:35:28,949 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 249 for LOIs [2022-12-14 06:35:35,224 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 444 for LOIs [2022-12-14 06:35:35,787 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 06:35:37,544 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 238 for LOIs [2022-12-14 06:35:37,579 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 226 for LOIs [2022-12-14 06:35:37,613 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:36:51,078 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 472 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:37:37,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1099525115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:37:37,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:37:37,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [16, 5, 5] total 74 [2022-12-14 06:37:37,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714080473] [2022-12-14 06:37:37,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:37:37,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-14 06:37:37,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:37:37,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-14 06:37:37,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=4988, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 06:37:37,185 INFO L87 Difference]: Start difference. First operand 577 states and 874 transitions. Second operand has 56 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 34 states have internal predecessors, (48), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 06:38:51,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:51,592 INFO L93 Difference]: Finished difference Result 1100 states and 1713 transitions. [2022-12-14 06:38:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-14 06:38:51,593 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 34 states have internal predecessors, (48), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 97 [2022-12-14 06:38:51,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:51,595 INFO L225 Difference]: With dead ends: 1100 [2022-12-14 06:38:51,595 INFO L226 Difference]: Without dead ends: 786 [2022-12-14 06:38:51,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 230 SyntacticMatches, 4 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1932 ImplicationChecksByTransitivity, 168.4s TimeCoverageRelationStatistics Valid=731, Invalid=8581, Unknown=0, NotChecked=0, Total=9312 [2022-12-14 06:38:51,598 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 719 mSDsluCounter, 5688 mSDsCounter, 0 mSdLazyCounter, 8801 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 8921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 8801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:38:51,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 5964 Invalid, 8921 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [120 Valid, 8801 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time] [2022-12-14 06:38:51,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2022-12-14 06:38:52,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 606. [2022-12-14 06:38:52,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 443 states have (on average 1.5011286681715577) internal successors, (665), 454 states have internal predecessors, (665), 127 states have call successors, (127), 37 states have call predecessors, (127), 35 states have return successors, (127), 116 states have call predecessors, (127), 126 states have call successors, (127) [2022-12-14 06:38:52,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 919 transitions. [2022-12-14 06:38:52,002 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 919 transitions. Word has length 97 [2022-12-14 06:38:52,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:52,003 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 919 transitions. [2022-12-14 06:38:52,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 34 states have internal predecessors, (48), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 06:38:52,003 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 919 transitions. [2022-12-14 06:38:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 06:38:52,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:52,005 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:38:52,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:38:52,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:52,207 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:38:52,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:52,208 INFO L85 PathProgramCache]: Analyzing trace with hash 204452738, now seen corresponding path program 1 times [2022-12-14 06:38:52,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:52,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530099866] [2022-12-14 06:38:52,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:52,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:52,728 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:38:52,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:52,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530099866] [2022-12-14 06:38:52,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530099866] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:38:52,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379817555] [2022-12-14 06:38:52,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:52,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:52,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:38:52,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:38:52,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e27b8b-5c54-4e78-a829-5db8d15d5879/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:38:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:52,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:38:52,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:38:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:38:52,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:38:53,010 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:38:53,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379817555] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:38:53,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1265158044] [2022-12-14 06:38:53,012 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2022-12-14 06:38:53,012 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:38:53,013 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:38:53,013 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:38:53,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs