./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product34.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_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/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_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/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_b0f9d51f-e91e-4c36-baf5-9f0777948c67/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 76fb98768a82c6e881c4461160153969b956a6a73a8217d33a39b93921ba72b5 --- 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 05:42:40,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:42:40,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:42:40,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:42:40,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:42:40,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:42:40,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:42:40,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:42:40,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:42:40,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:42:40,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:42:40,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:42:40,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:42:40,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:42:40,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:42:40,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:42:40,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:42:40,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:42:40,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:42:40,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:42:40,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:42:40,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:42:40,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:42:40,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:42:40,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:42:40,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:42:40,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:42:40,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:42:40,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:42:40,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:42:40,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:42:40,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:42:40,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:42:40,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:42:40,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:42:40,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:42:40,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:42:40,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:42:40,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:42:40,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:42:40,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:42:40,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:42:40,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:42:40,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:42:40,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:42:40,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:42:40,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:42:40,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:42:40,313 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:42:40,313 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:42:40,313 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:42:40,314 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:42:40,314 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:42:40,314 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:42:40,314 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:42:40,314 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:42:40,314 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:42:40,315 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:42:40,315 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:42:40,315 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:42:40,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:42:40,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:42:40,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:42:40,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:42:40,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:42:40,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:42:40,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:42:40,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:42:40,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:42:40,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:42:40,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:42:40,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:42:40,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:42:40,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:42:40,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:42:40,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:42:40,318 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:42:40,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:42:40,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:42:40,318 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:42:40,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:42:40,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:42:40,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:42:40,319 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_b0f9d51f-e91e-4c36-baf5-9f0777948c67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76fb98768a82c6e881c4461160153969b956a6a73a8217d33a39b93921ba72b5 [2022-12-14 05:42:40,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:42:40,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:42:40,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:42:40,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:42:40,551 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:42:40,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product34.cil.c [2022-12-14 05:42:43,083 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:42:43,342 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:42:43,342 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c [2022-12-14 05:42:43,356 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/data/e9f769ae2/7112c531c9664bd9a5c43a938ddd5988/FLAGb35ad9f06 [2022-12-14 05:42:43,667 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/data/e9f769ae2/7112c531c9664bd9a5c43a938ddd5988 [2022-12-14 05:42:43,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:42:43,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:42:43,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:42:43,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:42:43,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:42:43,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:42:43" (1/1) ... [2022-12-14 05:42:43,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fcc1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:43, skipping insertion in model container [2022-12-14 05:42:43,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:42:43" (1/1) ... [2022-12-14 05:42:43,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:42:43,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:42:43,963 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:43,975 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_b0f9d51f-e91e-4c36-baf5-9f0777948c67/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c[2480,2493] [2022-12-14 05:42:44,141 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,146 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,147 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,148 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,156 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,201 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,202 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,204 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:42:44,216 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:42:44,225 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,226 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_b0f9d51f-e91e-4c36-baf5-9f0777948c67/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c[2480,2493] [2022-12-14 05:42:44,259 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,261 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,261 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,262 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,266 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,282 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,282 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,284 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:42:44,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:42:44,307 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:42:44,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44 WrapperNode [2022-12-14 05:42:44,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:42:44,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:42:44,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:42:44,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:42:44,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,395 INFO L138 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1096 [2022-12-14 05:42:44,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:42:44,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:42:44,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:42:44,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:42:44,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,443 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:42:44,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:42:44,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:42:44,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:42:44,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (1/1) ... [2022-12-14 05:42:44,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:42:44,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:42:44,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:42:44,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:42:44,523 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 05:42:44,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 05:42:44,523 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 05:42:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 05:42:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 05:42:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 05:42:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 05:42:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 05:42:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 05:42:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 05:42:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 05:42:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 05:42:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 05:42:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 05:42:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 05:42:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 05:42:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 05:42:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 05:42:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 05:42:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 05:42:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 05:42:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 05:42:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 05:42:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 05:42:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 05:42:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 05:42:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 05:42:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 05:42:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 05:42:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:42:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 05:42:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 05:42:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 05:42:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 05:42:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 05:42:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 05:42:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 05:42:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 05:42:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 05:42:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 05:42:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 05:42:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 05:42:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 05:42:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 05:42:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 05:42:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 05:42:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 05:42:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 05:42:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 05:42:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 05:42:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 05:42:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 05:42:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 05:42:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 05:42:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:42:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 05:42:44,537 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 05:42:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 05:42:44,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 05:42:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:42:44,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:42:44,708 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:42:44,710 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:42:45,342 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:42:45,725 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:42:45,725 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 05:42:45,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:42:45 BoogieIcfgContainer [2022-12-14 05:42:45,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:42:45,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:42:45,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:42:45,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:42:45,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:42:43" (1/3) ... [2022-12-14 05:42:45,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cfddae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:42:45, skipping insertion in model container [2022-12-14 05:42:45,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:44" (2/3) ... [2022-12-14 05:42:45,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cfddae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:42:45, skipping insertion in model container [2022-12-14 05:42:45,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:42:45" (3/3) ... [2022-12-14 05:42:45,734 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product34.cil.c [2022-12-14 05:42:45,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:42:45,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:42:45,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:42:45,798 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;@2c291ecd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:42:45,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:42:45,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 05:42:45,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 05:42:45,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:42:45,815 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:42:45,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:42:45,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:42:45,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1046482069, now seen corresponding path program 1 times [2022-12-14 05:42:45,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:42:45,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364691692] [2022-12-14 05:42:45,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:42:45,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:42:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:42:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:42:46,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:42:46,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364691692] [2022-12-14 05:42:46,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364691692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:42:46,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:42:46,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:42:46,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827752290] [2022-12-14 05:42:46,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:42:46,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:42:46,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:42:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:42:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:42:46,090 INFO L87 Difference]: Start difference. First operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:42:46,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:42:46,219 INFO L93 Difference]: Finished difference Result 370 states and 491 transitions. [2022-12-14 05:42:46,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:42:46,221 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 05:42:46,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:42:46,233 INFO L225 Difference]: With dead ends: 370 [2022-12-14 05:42:46,233 INFO L226 Difference]: Without dead ends: 228 [2022-12-14 05:42:46,238 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 05:42:46,241 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:42:46,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:42:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-12-14 05:42:46,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-12-14 05:42:46,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 128 states have (on average 1.265625) internal successors, (162), 132 states have internal predecessors, (162), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 05:42:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 303 transitions. [2022-12-14 05:42:46,293 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 303 transitions. Word has length 71 [2022-12-14 05:42:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:42:46,294 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 303 transitions. [2022-12-14 05:42:46,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:42:46,295 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 303 transitions. [2022-12-14 05:42:46,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 05:42:46,298 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:42:46,298 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:42:46,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:42:46,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:42:46,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:42:46,300 INFO L85 PathProgramCache]: Analyzing trace with hash -566978695, now seen corresponding path program 1 times [2022-12-14 05:42:46,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:42:46,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923044400] [2022-12-14 05:42:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:42:46,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:42:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:42:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:42:46,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:42:46,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923044400] [2022-12-14 05:42:46,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923044400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:42:46,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:42:46,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:42:46,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128411092] [2022-12-14 05:42:46,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:42:46,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:42:46,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:42:46,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:42:46,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:42:46,501 INFO L87 Difference]: Start difference. First operand 228 states and 303 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:42:46,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:42:46,621 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2022-12-14 05:42:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:42:46,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 05:42:46,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:42:46,624 INFO L225 Difference]: With dead ends: 366 [2022-12-14 05:42:46,624 INFO L226 Difference]: Without dead ends: 230 [2022-12-14 05:42:46,625 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 05:42:46,626 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:42:46,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 519 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:42:46,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-12-14 05:42:46,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-12-14 05:42:46,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 05:42:46,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 305 transitions. [2022-12-14 05:42:46,649 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 305 transitions. Word has length 72 [2022-12-14 05:42:46,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:42:46,649 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 305 transitions. [2022-12-14 05:42:46,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:42:46,649 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 305 transitions. [2022-12-14 05:42:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 05:42:46,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:42:46,651 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:42:46,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:42:46,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:42:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:42:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -987373765, now seen corresponding path program 1 times [2022-12-14 05:42:46,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:42:46,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069353177] [2022-12-14 05:42:46,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:42:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:42:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:42:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:42:46,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:42:46,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069353177] [2022-12-14 05:42:46,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069353177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:42:46,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:42:46,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:42:46,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257340639] [2022-12-14 05:42:46,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:42:46,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:42:46,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:42:46,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:42:46,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:42:46,730 INFO L87 Difference]: Start difference. First operand 230 states and 305 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:42:46,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:42:46,842 INFO L93 Difference]: Finished difference Result 495 states and 677 transitions. [2022-12-14 05:42:46,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:42:46,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 05:42:46,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:42:46,844 INFO L225 Difference]: With dead ends: 495 [2022-12-14 05:42:46,844 INFO L226 Difference]: Without dead ends: 283 [2022-12-14 05:42:46,845 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 05:42:46,845 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 59 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:42:46,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 539 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:42:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-12-14 05:42:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2022-12-14 05:42:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 164 states have (on average 1.3353658536585367) internal successors, (219), 168 states have internal predecessors, (219), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2022-12-14 05:42:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 388 transitions. [2022-12-14 05:42:46,861 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 388 transitions. Word has length 77 [2022-12-14 05:42:46,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:42:46,861 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 388 transitions. [2022-12-14 05:42:46,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:42:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 388 transitions. [2022-12-14 05:42:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 05:42:46,863 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:42:46,864 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:42:46,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:42:46,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:42:46,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:42:46,864 INFO L85 PathProgramCache]: Analyzing trace with hash 592388460, now seen corresponding path program 1 times [2022-12-14 05:42:46,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:42:46,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838010260] [2022-12-14 05:42:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:42:46,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:42:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:42:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:42:47,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:42:47,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838010260] [2022-12-14 05:42:47,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838010260] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:42:47,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109360804] [2022-12-14 05:42:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:42:47,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:42:47,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:42:47,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:42:47,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:42:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:42:47,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:42:47,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:42:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:42:47,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:42:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:42:47,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109360804] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:42:47,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [903221250] [2022-12-14 05:42:47,389 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 05:42:47,390 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:42:47,392 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:42:47,396 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:42:47,396 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:43:13,878 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:43:14,174 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 270 for LOIs [2022-12-14 05:43:16,056 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 238 for LOIs [2022-12-14 05:43:16,092 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 447 for LOIs [2022-12-14 05:43:16,400 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 272 for LOIs [2022-12-14 05:43:19,131 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 228 for LOIs [2022-12-14 05:43:19,176 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 280 for LOIs [2022-12-14 05:43:25,748 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 250 for LOIs [2022-12-14 05:43:25,816 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-12-14 05:43:25,856 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-12-14 05:43:30,807 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 255 for LOIs [2022-12-14 05:43:30,855 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:44:56,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [903221250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:44:56,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:44:56,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 05:44:56,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234700436] [2022-12-14 05:44:56,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:44:56,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 05:44:56,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:56,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 05:44:56,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=3262, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 05:44:56,615 INFO L87 Difference]: Start difference. First operand 278 states and 388 transitions. Second operand has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 05:45:34,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:34,503 INFO L93 Difference]: Finished difference Result 642 states and 928 transitions. [2022-12-14 05:45:34,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-14 05:45:34,503 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 78 [2022-12-14 05:45:34,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:34,505 INFO L225 Difference]: With dead ends: 642 [2022-12-14 05:45:34,505 INFO L226 Difference]: Without dead ends: 382 [2022-12-14 05:45:34,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 99.3s TimeCoverageRelationStatistics Valid=210, Invalid=4212, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 05:45:34,508 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 105 mSDsluCounter, 7267 mSDsCounter, 0 mSdLazyCounter, 8483 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 7544 SdHoareTripleChecker+Invalid, 8505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 8483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:34,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 7544 Invalid, 8505 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [22 Valid, 8483 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2022-12-14 05:45:34,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-12-14 05:45:34,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 340. [2022-12-14 05:45:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 209 states have (on average 1.325358851674641) internal successors, (277), 213 states have internal predecessors, (277), 95 states have call successors, (95), 38 states have call predecessors, (95), 35 states have return successors, (94), 90 states have call predecessors, (94), 94 states have call successors, (94) [2022-12-14 05:45:34,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 466 transitions. [2022-12-14 05:45:34,595 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 466 transitions. Word has length 78 [2022-12-14 05:45:34,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:34,596 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 466 transitions. [2022-12-14 05:45:34,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 05:45:34,596 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 466 transitions. [2022-12-14 05:45:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 05:45:34,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:34,598 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:45:34,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:45:34,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:34,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:34,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:34,801 INFO L85 PathProgramCache]: Analyzing trace with hash 507509286, now seen corresponding path program 1 times [2022-12-14 05:45:34,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:34,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760982667] [2022-12-14 05:45:34,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:34,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:34,913 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 05:45:34,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:34,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760982667] [2022-12-14 05:45:34,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760982667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:34,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:34,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:45:34,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801575488] [2022-12-14 05:45:34,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:34,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:45:34,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:34,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:45:34,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:45:34,915 INFO L87 Difference]: Start difference. First operand 340 states and 466 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 05:45:35,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:35,199 INFO L93 Difference]: Finished difference Result 782 states and 1112 transitions. [2022-12-14 05:45:35,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:45:35,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-12-14 05:45:35,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:35,203 INFO L225 Difference]: With dead ends: 782 [2022-12-14 05:45:35,203 INFO L226 Difference]: Without dead ends: 468 [2022-12-14 05:45:35,204 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 05:45:35,205 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 57 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:35,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 542 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:45:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-12-14 05:45:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 461. [2022-12-14 05:45:35,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 299 states have (on average 1.394648829431438) internal successors, (417), 303 states have internal predecessors, (417), 126 states have call successors, (126), 38 states have call predecessors, (126), 35 states have return successors, (125), 121 states have call predecessors, (125), 125 states have call successors, (125) [2022-12-14 05:45:35,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 668 transitions. [2022-12-14 05:45:35,341 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 668 transitions. Word has length 83 [2022-12-14 05:45:35,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:35,341 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 668 transitions. [2022-12-14 05:45:35,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 05:45:35,342 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 668 transitions. [2022-12-14 05:45:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 05:45:35,344 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:35,344 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:45:35,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:45:35,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:35,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:35,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1661353446, now seen corresponding path program 1 times [2022-12-14 05:45:35,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:35,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807299236] [2022-12-14 05:45:35,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 05:45:35,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:35,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807299236] [2022-12-14 05:45:35,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807299236] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:45:35,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997227545] [2022-12-14 05:45:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:35,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:35,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:35,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:45:35,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:45:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:35,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:45:35,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:45:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 05:45:35,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:45:35,728 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 05:45:35,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997227545] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:45:35,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1160560710] [2022-12-14 05:45:35,732 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 05:45:35,733 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:45:35,733 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:45:35,733 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:45:35,733 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:46:09,312 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 05:46:09,608 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 266 for LOIs [2022-12-14 05:46:11,357 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 05:46:11,392 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 05:46:11,680 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 266 for LOIs [2022-12-14 05:46:14,363 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 224 for LOIs [2022-12-14 05:46:14,397 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 276 for LOIs [2022-12-14 05:46:20,315 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-12-14 05:46:20,382 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 243 for LOIs [2022-12-14 05:46:20,421 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 05:46:22,198 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-12-14 05:46:22,246 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:47:52,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1160560710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:47:52,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:47:52,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-12-14 05:47:52,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127748794] [2022-12-14 05:47:52,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:47:52,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-14 05:47:52,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:47:52,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-14 05:47:52,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=3718, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 05:47:52,995 INFO L87 Difference]: Start difference. First operand 461 states and 668 transitions. Second operand has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 05:48:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:48:58,214 INFO L93 Difference]: Finished difference Result 973 states and 1460 transitions. [2022-12-14 05:48:58,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-12-14 05:48:58,215 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 84 [2022-12-14 05:48:58,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:48:58,218 INFO L225 Difference]: With dead ends: 973 [2022-12-14 05:48:58,218 INFO L226 Difference]: Without dead ends: 613 [2022-12-14 05:48:58,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 130.1s TimeCoverageRelationStatistics Valid=327, Invalid=5835, Unknown=0, NotChecked=0, Total=6162 [2022-12-14 05:48:58,220 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 295 mSDsluCounter, 6329 mSDsCounter, 0 mSdLazyCounter, 8371 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 6600 SdHoareTripleChecker+Invalid, 8414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 8371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:48:58,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 6600 Invalid, 8414 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [43 Valid, 8371 Invalid, 0 Unknown, 0 Unchecked, 25.2s Time] [2022-12-14 05:48:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-12-14 05:48:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 477. [2022-12-14 05:48:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 311 states have (on average 1.3987138263665595) internal successors, (435), 317 states have internal predecessors, (435), 129 states have call successors, (129), 39 states have call predecessors, (129), 36 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2022-12-14 05:48:58,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 692 transitions. [2022-12-14 05:48:58,413 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 692 transitions. Word has length 84 [2022-12-14 05:48:58,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:58,413 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 692 transitions. [2022-12-14 05:48:58,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 05:48:58,414 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 692 transitions. [2022-12-14 05:48:58,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 05:48:58,415 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:58,415 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:48:58,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:48:58,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 05:48:58,616 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:58,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:58,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1730232934, now seen corresponding path program 1 times [2022-12-14 05:48:58,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:58,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972265611] [2022-12-14 05:48:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:58,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:48:58,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:58,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972265611] [2022-12-14 05:48:58,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972265611] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:48:58,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242782219] [2022-12-14 05:48:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:58,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:48:58,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:48:58,711 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:48:58,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:48:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:58,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:48:58,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:48:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:48:58,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:48:58,983 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:48:58,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242782219] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:48:58,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [431827394] [2022-12-14 05:48:58,986 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 05:48:58,986 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:48:58,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:48:58,986 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:48:58,986 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:50:08,125 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:50:08,413 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 05:50:08,472 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-12-14 05:50:08,532 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-12-14 05:50:08,594 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 447 for LOIs [2022-12-14 05:50:08,890 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:50:54,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [431827394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:50:54,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:50:54,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 05:50:54,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285599734] [2022-12-14 05:50:54,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:50:54,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 05:50:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:50:54,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 05:50:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 05:50:54,365 INFO L87 Difference]: Start difference. First operand 477 states and 692 transitions. Second operand has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 05:51:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:51:21,719 INFO L93 Difference]: Finished difference Result 973 states and 1466 transitions. [2022-12-14 05:51:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 05:51:21,720 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2022-12-14 05:51:21,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:51:21,723 INFO L225 Difference]: With dead ends: 973 [2022-12-14 05:51:21,723 INFO L226 Difference]: Without dead ends: 613 [2022-12-14 05:51:21,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 61.0s TimeCoverageRelationStatistics Valid=172, Invalid=1550, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 05:51:21,725 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 195 mSDsluCounter, 3516 mSDsCounter, 0 mSdLazyCounter, 3694 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 3715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:51:21,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 3793 Invalid, 3715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 3694 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-12-14 05:51:21,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-12-14 05:51:22,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 531. [2022-12-14 05:51:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 358 states have (on average 1.4022346368715084) internal successors, (502), 365 states have internal predecessors, (502), 133 states have call successors, (133), 42 states have call predecessors, (133), 39 states have return successors, (132), 125 states have call predecessors, (132), 132 states have call successors, (132) [2022-12-14 05:51:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 767 transitions. [2022-12-14 05:51:22,003 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 767 transitions. Word has length 87 [2022-12-14 05:51:22,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:51:22,003 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 767 transitions. [2022-12-14 05:51:22,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 05:51:22,004 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 767 transitions. [2022-12-14 05:51:22,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 05:51:22,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:51:22,005 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:51:22,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:51:22,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 05:51:22,206 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:51:22,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:51:22,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1364608864, now seen corresponding path program 1 times [2022-12-14 05:51:22,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:51:22,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962693091] [2022-12-14 05:51:22,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:51:22,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:51:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:51:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:51:22,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:51:22,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962693091] [2022-12-14 05:51:22,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962693091] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:51:22,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259101727] [2022-12-14 05:51:22,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:51:22,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:51:22,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:51:22,286 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:51:22,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f9d51f-e91e-4c36-baf5-9f0777948c67/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:51:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:51:22,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:51:22,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:51:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:51:22,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:51:22,600 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:51:22,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259101727] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:51:22,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [408686885] [2022-12-14 05:51:22,603 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 05:51:22,603 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:51:22,604 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:51:22,604 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:51:22,604 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:52:09,138 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:52:09,425 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 483 for LOIs [2022-12-14 05:52:44,484 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-12-14 05:52:44,770 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 447 for LOIs [2022-12-14 05:52:45,055 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 481 for LOIs [2022-12-14 05:52:50,611 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 439 for LOIs [2022-12-14 05:52:50,883 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 282 for LOIs [2022-12-14 05:52:59,465 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 05:52:59,534 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 249 for LOIs [2022-12-14 05:52:59,575 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 453 for LOIs [2022-12-14 05:53:00,360 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 257 for LOIs [2022-12-14 05:53:00,407 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:53:48,911 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 562 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:54:17,448 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 566 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:54:27,758 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 568 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:55:44,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [408686885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:55:44,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:55:44,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 05:55:44,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595237538] [2022-12-14 05:55:44,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:55:44,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 05:55:44,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:55:44,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 05:55:44,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=4184, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 05:55:44,057 INFO L87 Difference]: Start difference. First operand 531 states and 767 transitions. Second operand has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)