./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product21.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_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/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_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/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_6d5a4409-758d-4430-978c-a3c16dcea967/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 cecb11257778d17777e5c48cccb3bea71da01aa9ce120079a5b602041abb00f4 --- 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 15:12:39,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:12:39,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:12:39,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:12:39,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:12:39,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:12:39,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:12:39,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:12:39,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:12:39,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:12:39,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:12:39,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:12:39,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:12:39,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:12:39,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:12:39,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:12:39,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:12:39,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:12:39,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:12:39,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:12:39,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:12:39,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:12:39,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:12:39,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:12:39,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:12:39,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:12:39,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:12:39,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:12:39,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:12:39,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:12:39,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:12:39,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:12:39,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:12:39,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:12:39,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:12:39,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:12:39,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:12:39,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:12:39,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:12:39,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:12:39,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:12:39,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:12:39,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:12:39,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:12:39,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:12:39,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:12:39,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:12:39,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:12:39,429 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:12:39,429 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:12:39,429 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:12:39,429 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:12:39,429 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:12:39,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:12:39,429 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:12:39,429 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:12:39,430 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:12:39,430 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:12:39,430 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:12:39,430 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:12:39,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:12:39,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:12:39,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:12:39,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:12:39,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:12:39,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:12:39,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:12:39,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:12:39,432 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:12:39,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:12:39,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:12:39,433 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:12:39,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:12:39,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:12:39,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:12:39,433 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_6d5a4409-758d-4430-978c-a3c16dcea967/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cecb11257778d17777e5c48cccb3bea71da01aa9ce120079a5b602041abb00f4 [2022-12-14 15:12:39,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:12:39,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:12:39,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:12:39,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:12:39,624 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:12:39,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product21.cil.c [2022-12-14 15:12:42,268 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:12:42,499 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:12:42,500 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c [2022-12-14 15:12:42,514 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/data/928604e65/83aee8fc75864c79957d1c1244d6b769/FLAGe87ad20cd [2022-12-14 15:12:42,528 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/data/928604e65/83aee8fc75864c79957d1c1244d6b769 [2022-12-14 15:12:42,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:12:42,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:12:42,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:12:42,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:12:42,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:12:42,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:12:42" (1/1) ... [2022-12-14 15:12:42,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43018c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:42, skipping insertion in model container [2022-12-14 15:12:42,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:12:42" (1/1) ... [2022-12-14 15:12:42,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:12:42,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:12:42,761 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:42,949 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:42,955 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:42,955 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:42,957 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:42,965 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,038 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,039 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,041 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,045 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_6d5a4409-758d-4430-978c-a3c16dcea967/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c[63391,63404] [2022-12-14 15:12:43,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:12:43,062 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:12:43,074 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,108 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,110 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,111 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,112 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,116 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,137 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,138 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,140 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:43,143 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_6d5a4409-758d-4430-978c-a3c16dcea967/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c[63391,63404] [2022-12-14 15:12:43,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:12:43,169 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:12:43,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43 WrapperNode [2022-12-14 15:12:43,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:12:43,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:12:43,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:12:43,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:12:43,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,236 INFO L138 Inliner]: procedures = 128, calls = 215, calls flagged for inlining = 57, calls inlined = 54, statements flattened = 1058 [2022-12-14 15:12:43,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:12:43,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:12:43,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:12:43,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:12:43,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:12:43,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:12:43,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:12:43,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:12:43,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (1/1) ... [2022-12-14 15:12:43,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:12:43,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:12:43,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:12:43,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:12:43,360 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 15:12:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 15:12:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 15:12:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 15:12:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 15:12:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 15:12:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 15:12:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 15:12:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 15:12:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 15:12:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 15:12:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 15:12:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 15:12:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 15:12:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 15:12:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 15:12:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 15:12:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 15:12:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 15:12:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 15:12:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 15:12:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:12:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 15:12:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 15:12:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 15:12:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 15:12:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 15:12:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 15:12:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 15:12:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 15:12:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 15:12:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 15:12:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 15:12:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 15:12:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 15:12:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 15:12:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 15:12:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 15:12:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 15:12:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 15:12:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:12:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 15:12:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 15:12:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 15:12:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 15:12:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:12:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:12:43,509 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:12:43,511 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:12:44,099 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:12:44,390 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:12:44,390 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:12:44,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:12:44 BoogieIcfgContainer [2022-12-14 15:12:44,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:12:44,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:12:44,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:12:44,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:12:44,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:12:42" (1/3) ... [2022-12-14 15:12:44,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7a0075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:12:44, skipping insertion in model container [2022-12-14 15:12:44,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:43" (2/3) ... [2022-12-14 15:12:44,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7a0075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:12:44, skipping insertion in model container [2022-12-14 15:12:44,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:12:44" (3/3) ... [2022-12-14 15:12:44,398 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product21.cil.c [2022-12-14 15:12:44,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:12:44,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:12:44,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:12:44,453 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;@4bbfacfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:12:44,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:12:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-14 15:12:44,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 15:12:44,466 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:12:44,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:12:44,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:12:44,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:12:44,471 INFO L85 PathProgramCache]: Analyzing trace with hash -993584069, now seen corresponding path program 1 times [2022-12-14 15:12:44,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:12:44,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169060804] [2022-12-14 15:12:44,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:44,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:12:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:44,677 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 15:12:44,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:12:44,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169060804] [2022-12-14 15:12:44,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169060804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:12:44,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:12:44,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:12:44,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364017114] [2022-12-14 15:12:44,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:12:44,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:12:44,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:12:44,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:12:44,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:12:44,706 INFO L87 Difference]: Start difference. First operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 15:12:44,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:12:44,834 INFO L93 Difference]: Finished difference Result 278 states and 379 transitions. [2022-12-14 15:12:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:12:44,836 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-12-14 15:12:44,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:12:44,843 INFO L225 Difference]: With dead ends: 278 [2022-12-14 15:12:44,843 INFO L226 Difference]: Without dead ends: 182 [2022-12-14 15:12:44,846 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 15:12:44,849 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:12:44,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:12:44,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-12-14 15:12:44,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-12-14 15:12:44,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 15:12:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2022-12-14 15:12:44,888 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 63 [2022-12-14 15:12:44,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:12:44,889 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2022-12-14 15:12:44,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 15:12:44,889 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2022-12-14 15:12:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 15:12:44,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:12:44,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:12:44,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:12:44,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:12:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:12:44,892 INFO L85 PathProgramCache]: Analyzing trace with hash -493002669, now seen corresponding path program 1 times [2022-12-14 15:12:44,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:12:44,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520661719] [2022-12-14 15:12:44,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:44,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:12:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:45,010 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 15:12:45,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:12:45,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520661719] [2022-12-14 15:12:45,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520661719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:12:45,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:12:45,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:12:45,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567124623] [2022-12-14 15:12:45,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:12:45,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:12:45,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:12:45,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:12:45,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:12:45,013 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 15:12:45,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:12:45,121 INFO L93 Difference]: Finished difference Result 274 states and 364 transitions. [2022-12-14 15:12:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:12:45,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-12-14 15:12:45,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:12:45,123 INFO L225 Difference]: With dead ends: 274 [2022-12-14 15:12:45,124 INFO L226 Difference]: Without dead ends: 184 [2022-12-14 15:12:45,125 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 15:12:45,126 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:12:45,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:12:45,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-12-14 15:12:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-12-14 15:12:45,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 109 states have internal predecessors, (136), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 15:12:45,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2022-12-14 15:12:45,144 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 64 [2022-12-14 15:12:45,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:12:45,145 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2022-12-14 15:12:45,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 15:12:45,145 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2022-12-14 15:12:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 15:12:45,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:12:45,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:12:45,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:12:45,148 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:12:45,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:12:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash 96516420, now seen corresponding path program 1 times [2022-12-14 15:12:45,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:12:45,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925015671] [2022-12-14 15:12:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:45,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:12:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:45,270 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 15:12:45,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:12:45,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925015671] [2022-12-14 15:12:45,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925015671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:12:45,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:12:45,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:12:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708908405] [2022-12-14 15:12:45,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:12:45,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:12:45,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:12:45,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:12:45,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:12:45,274 INFO L87 Difference]: Start difference. First operand 184 states and 249 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 15:12:45,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:12:45,385 INFO L93 Difference]: Finished difference Result 403 states and 565 transitions. [2022-12-14 15:12:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:12:45,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-12-14 15:12:45,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:12:45,387 INFO L225 Difference]: With dead ends: 403 [2022-12-14 15:12:45,387 INFO L226 Difference]: Without dead ends: 237 [2022-12-14 15:12:45,388 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 15:12:45,389 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 59 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:12:45,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:12:45,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-12-14 15:12:45,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2022-12-14 15:12:45,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 143 states have internal predecessors, (191), 71 states have call successors, (71), 21 states have call predecessors, (71), 21 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 15:12:45,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 332 transitions. [2022-12-14 15:12:45,410 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 332 transitions. Word has length 69 [2022-12-14 15:12:45,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:12:45,410 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 332 transitions. [2022-12-14 15:12:45,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 15:12:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 332 transitions. [2022-12-14 15:12:45,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 15:12:45,413 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:12:45,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:12:45,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:12:45,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:12:45,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:12:45,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1853350880, now seen corresponding path program 1 times [2022-12-14 15:12:45,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:12:45,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909543186] [2022-12-14 15:12:45,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:45,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:12:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:45,566 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 15:12:45,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:12:45,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909543186] [2022-12-14 15:12:45,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909543186] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:12:45,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455784453] [2022-12-14 15:12:45,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:45,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:12:45,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:12:45,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:12:45,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:12:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:45,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:12:45,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:12:45,830 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 15:12:45,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:12:45,882 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 15:12:45,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455784453] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:12:45,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [464850477] [2022-12-14 15:12:45,899 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-12-14 15:12:45,899 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:12:45,902 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:12:45,906 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:12:45,906 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:13:06,637 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:13:06,930 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:13:07,227 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:13:41,009 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 577 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:13:47,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [464850477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:13:47,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:13:47,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 15:13:47,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079822004] [2022-12-14 15:13:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:13:47,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 15:13:47,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:13:47,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 15:13:47,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-12-14 15:13:47,771 INFO L87 Difference]: Start difference. First operand 232 states and 332 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 15:13:56,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:13:56,540 INFO L93 Difference]: Finished difference Result 512 states and 765 transitions. [2022-12-14 15:13:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 15:13:56,540 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2022-12-14 15:13:56,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:13:56,543 INFO L225 Difference]: With dead ends: 512 [2022-12-14 15:13:56,543 INFO L226 Difference]: Without dead ends: 298 [2022-12-14 15:13:56,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2022-12-14 15:13:56,545 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 116 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:13:56,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 3054 Invalid, 1915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-12-14 15:13:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-12-14 15:13:56,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 255. [2022-12-14 15:13:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 161 states have (on average 1.391304347826087) internal successors, (224), 165 states have internal predecessors, (224), 71 states have call successors, (71), 22 states have call predecessors, (71), 22 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 15:13:56,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 365 transitions. [2022-12-14 15:13:56,627 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 365 transitions. Word has length 70 [2022-12-14 15:13:56,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:13:56,628 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 365 transitions. [2022-12-14 15:13:56,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 15:13:56,628 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 365 transitions. [2022-12-14 15:13:56,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 15:13:56,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:13:56,631 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:13:56,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:13:56,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:13:56,832 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:13:56,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:13:56,833 INFO L85 PathProgramCache]: Analyzing trace with hash -867572794, now seen corresponding path program 1 times [2022-12-14 15:13:56,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:13:56,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026904596] [2022-12-14 15:13:56,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:56,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:13:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:56,940 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 15:13:56,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:13:56,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026904596] [2022-12-14 15:13:56,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026904596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:13:56,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:13:56,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:13:56,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298277250] [2022-12-14 15:13:56,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:13:56,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:13:56,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:13:56,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:13:56,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:13:56,942 INFO L87 Difference]: Start difference. First operand 255 states and 365 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 15:13:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:13:57,157 INFO L93 Difference]: Finished difference Result 613 states and 910 transitions. [2022-12-14 15:13:57,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:13:57,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-12-14 15:13:57,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:13:57,159 INFO L225 Difference]: With dead ends: 613 [2022-12-14 15:13:57,159 INFO L226 Difference]: Without dead ends: 382 [2022-12-14 15:13:57,160 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 15:13:57,160 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 57 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:13:57,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 443 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:13:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-12-14 15:13:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 377. [2022-12-14 15:13:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 252 states have (on average 1.4444444444444444) internal successors, (364), 256 states have internal predecessors, (364), 102 states have call successors, (102), 22 states have call predecessors, (102), 22 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2022-12-14 15:13:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 567 transitions. [2022-12-14 15:13:57,264 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 567 transitions. Word has length 75 [2022-12-14 15:13:57,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:13:57,264 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 567 transitions. [2022-12-14 15:13:57,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 15:13:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 567 transitions. [2022-12-14 15:13:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 15:13:57,266 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:13:57,266 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:13:57,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:13:57,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:13:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:13:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash -651523355, now seen corresponding path program 1 times [2022-12-14 15:13:57,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:13:57,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711791696] [2022-12-14 15:13:57,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:57,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:13:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:57,351 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 15:13:57,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:13:57,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711791696] [2022-12-14 15:13:57,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711791696] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:13:57,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075603857] [2022-12-14 15:13:57,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:57,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:13:57,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:13:57,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:13:57,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:13:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:57,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:13:57,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:13:57,554 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 15:13:57,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:13:57,597 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 15:13:57,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075603857] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:13:57,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1005442988] [2022-12-14 15:13:57,601 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 15:13:57,601 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:13:57,601 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:13:57,601 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:13:57,602 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:14:34,946 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:14:35,235 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 454 for LOIs [2022-12-14 15:14:35,525 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:15:09,380 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 583 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:15:28,591 WARN L233 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 581 DAG size of output: 445 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:15:34,847 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 583 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:15:38,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1005442988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:38,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:15:38,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 15:15:38,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469003578] [2022-12-14 15:15:38,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:38,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 15:15:38,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:38,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 15:15:38,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 15:15:38,581 INFO L87 Difference]: Start difference. First operand 377 states and 567 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 15:16:05,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:05,308 INFO L93 Difference]: Finished difference Result 809 states and 1259 transitions. [2022-12-14 15:16:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 15:16:05,309 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2022-12-14 15:16:05,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:05,312 INFO L225 Difference]: With dead ends: 809 [2022-12-14 15:16:05,312 INFO L226 Difference]: Without dead ends: 495 [2022-12-14 15:16:05,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 200 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 82.1s TimeCoverageRelationStatistics Valid=208, Invalid=1352, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 15:16:05,314 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 176 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:05,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 3171 Invalid, 2474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-12-14 15:16:05,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-12-14 15:16:05,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 393. [2022-12-14 15:16:05,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 264 states have (on average 1.4431818181818181) internal successors, (381), 270 states have internal predecessors, (381), 105 states have call successors, (105), 23 states have call predecessors, (105), 23 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104) [2022-12-14 15:16:05,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 590 transitions. [2022-12-14 15:16:05,492 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 590 transitions. Word has length 76 [2022-12-14 15:16:05,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:05,493 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 590 transitions. [2022-12-14 15:16:05,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 15:16:05,493 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 590 transitions. [2022-12-14 15:16:05,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 15:16:05,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:05,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:05,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:16:05,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:16:05,697 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:16:05,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:05,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1399688127, now seen corresponding path program 1 times [2022-12-14 15:16:05,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:05,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878977483] [2022-12-14 15:16:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:05,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:05,851 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 15:16:05,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:05,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878977483] [2022-12-14 15:16:05,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878977483] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:16:05,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371569026] [2022-12-14 15:16:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:05,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:16:05,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:16:05,853 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:16:05,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:16:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:06,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:16:06,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:16:06,092 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 15:16:06,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:16:06,139 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 15:16:06,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371569026] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:16:06,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [348649687] [2022-12-14 15:16:06,142 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 15:16:06,142 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:16:06,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:16:06,143 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:16:06,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:17:23,894 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:17:24,181 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 15:17:24,240 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-12-14 15:17:24,299 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 281 for LOIs [2022-12-14 15:17:24,436 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:17:24,728 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:18:03,481 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 582 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:18:09,401 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 584 DAG size of output: 413 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:18:20,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [348649687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:18:20,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:18:20,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 15:18:20,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141678892] [2022-12-14 15:18:20,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:18:20,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 15:18:20,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:18:20,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 15:18:20,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 15:18:20,591 INFO L87 Difference]: Start difference. First operand 393 states and 590 transitions. Second operand has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 15:18:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:18:54,072 INFO L93 Difference]: Finished difference Result 844 states and 1310 transitions. [2022-12-14 15:18:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 15:18:54,073 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2022-12-14 15:18:54,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:18:54,075 INFO L225 Difference]: With dead ends: 844 [2022-12-14 15:18:54,075 INFO L226 Difference]: Without dead ends: 530 [2022-12-14 15:18:54,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 78.0s TimeCoverageRelationStatistics Valid=172, Invalid=1550, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 15:18:54,076 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 164 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 3495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:18:54,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 3402 Invalid, 3495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-12-14 15:18:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-12-14 15:18:54,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 432. [2022-12-14 15:18:54,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 296 states have (on average 1.4391891891891893) internal successors, (426), 303 states have internal predecessors, (426), 109 states have call successors, (109), 26 states have call predecessors, (109), 26 states have return successors, (108), 104 states have call predecessors, (108), 108 states have call successors, (108) [2022-12-14 15:18:54,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 643 transitions. [2022-12-14 15:18:54,308 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 643 transitions. Word has length 79 [2022-12-14 15:18:54,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:18:54,308 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 643 transitions. [2022-12-14 15:18:54,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 15:18:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 643 transitions. [2022-12-14 15:18:54,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 15:18:54,311 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:18:54,311 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 15:18:54,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:18:54,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:18:54,511 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:18:54,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:18:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1015405, now seen corresponding path program 1 times [2022-12-14 15:18:54,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:18:54,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715053206] [2022-12-14 15:18:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:18:54,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:18:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:18:54,594 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 15:18:54,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:18:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715053206] [2022-12-14 15:18:54,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715053206] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:18:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436082122] [2022-12-14 15:18:54,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:18:54,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:18:54,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:18:54,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:18:54,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:18:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:18:54,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:18:54,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:18:54,792 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 15:18:54,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:18:54,834 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 15:18:54,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436082122] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:18:54,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [814623644] [2022-12-14 15:18:54,838 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 15:18:54,838 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:18:54,838 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:18:54,838 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:18:54,838 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:19:46,575 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 15:19:46,861 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:19:47,147 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-12-14 15:19:48,740 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 15:19:48,780 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-12-14 15:19:49,485 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 270 for LOIs [2022-12-14 15:19:53,738 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 241 for LOIs [2022-12-14 15:19:53,775 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 15:19:58,394 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 233 for LOIs [2022-12-14 15:19:58,431 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:20:34,834 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 579 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:20:40,331 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 575 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:21:50,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [814623644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:21:50,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:21:50,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 15:21:50,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421108866] [2022-12-14 15:21:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:21:50,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 15:21:50,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:21:50,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 15:21:50,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=3244, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 15:21:50,143 INFO L87 Difference]: Start difference. First operand 432 states and 643 transitions. Second operand has 54 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 36 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 15:23:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:23:01,113 INFO L93 Difference]: Finished difference Result 889 states and 1371 transitions. [2022-12-14 15:23:01,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-12-14 15:23:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 36 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 78 [2022-12-14 15:23:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:23:01,115 INFO L225 Difference]: With dead ends: 889 [2022-12-14 15:23:01,116 INFO L226 Difference]: Without dead ends: 575 [2022-12-14 15:23:01,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1780 ImplicationChecksByTransitivity, 162.2s TimeCoverageRelationStatistics Valid=670, Invalid=7162, Unknown=0, NotChecked=0, Total=7832 [2022-12-14 15:23:01,118 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 360 mSDsluCounter, 5112 mSDsCounter, 0 mSdLazyCounter, 6962 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 6990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 6962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:23:01,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 5329 Invalid, 6990 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 6962 Invalid, 0 Unknown, 0 Unchecked, 19.6s Time] [2022-12-14 15:23:01,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-12-14 15:23:01,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 497. [2022-12-14 15:23:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 349 states have (on average 1.4297994269340975) internal successors, (499), 356 states have internal predecessors, (499), 117 states have call successors, (117), 33 states have call predecessors, (117), 30 states have return successors, (116), 109 states have call predecessors, (116), 116 states have call successors, (116) [2022-12-14 15:23:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 732 transitions. [2022-12-14 15:23:01,463 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 732 transitions. Word has length 78 [2022-12-14 15:23:01,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:23:01,464 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 732 transitions. [2022-12-14 15:23:01,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 36 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 15:23:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 732 transitions. [2022-12-14 15:23:01,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 15:23:01,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:23:01,465 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:23:01,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:23:01,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 15:23:01,667 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:23:01,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:23:01,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1487377945, now seen corresponding path program 1 times [2022-12-14 15:23:01,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:23:01,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601160650] [2022-12-14 15:23:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:01,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:23:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:23:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:23:01,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:23:01,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601160650] [2022-12-14 15:23:01,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601160650] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:23:01,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280643935] [2022-12-14 15:23:01,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:01,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:23:01,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:23:01,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:23:01,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:23:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:23:01,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:23:01,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:23:02,006 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:23:02,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:23:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:23:02,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280643935] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:23:02,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1158247099] [2022-12-14 15:23:02,053 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 15:23:02,053 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:23:02,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:23:02,053 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:23:02,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:23:30,653 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:23:30,944 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 15:23:31,232 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:24:17,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1158247099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:17,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:24:17,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [5, 5, 5] total 30 [2022-12-14 15:24:17,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904495989] [2022-12-14 15:24:17,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:17,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 15:24:17,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:17,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 15:24:17,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2022-12-14 15:24:17,608 INFO L87 Difference]: Start difference. First operand 497 states and 732 transitions. Second operand has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 15:24:42,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:42,355 INFO L93 Difference]: Finished difference Result 1020 states and 1584 transitions. [2022-12-14 15:24:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 15:24:42,356 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 81 [2022-12-14 15:24:42,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:42,358 INFO L225 Difference]: With dead ends: 1020 [2022-12-14 15:24:42,358 INFO L226 Difference]: Without dead ends: 691 [2022-12-14 15:24:42,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 216 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 61.9s TimeCoverageRelationStatistics Valid=217, Invalid=1343, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 15:24:42,359 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 248 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 2845 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:42,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 3541 Invalid, 2904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2845 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 15:24:42,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-12-14 15:24:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 519. [2022-12-14 15:24:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 372 states have (on average 1.4301075268817205) internal successors, (532), 377 states have internal predecessors, (532), 116 states have call successors, (116), 33 states have call predecessors, (116), 30 states have return successors, (115), 110 states have call predecessors, (115), 115 states have call successors, (115) [2022-12-14 15:24:42,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 763 transitions. [2022-12-14 15:24:42,794 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 763 transitions. Word has length 81 [2022-12-14 15:24:42,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:42,795 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 763 transitions. [2022-12-14 15:24:42,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 15:24:42,795 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 763 transitions. [2022-12-14 15:24:42,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 15:24:42,797 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:42,797 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:42,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:24:42,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:42,999 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:42,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:43,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1348546216, now seen corresponding path program 1 times [2022-12-14 15:24:43,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:43,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246627933] [2022-12-14 15:24:43,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:43,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:43,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:43,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246627933] [2022-12-14 15:24:43,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246627933] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:24:43,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428742848] [2022-12-14 15:24:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:43,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:43,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:24:43,176 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:24:43,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5a4409-758d-4430-978c-a3c16dcea967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 15:24:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:43,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:24:43,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:43,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:24:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:43,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428742848] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:24:43,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [775841562] [2022-12-14 15:24:43,446 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 15:24:43,446 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:24:43,446 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:24:43,446 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:24:43,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:11,045 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:26:11,326 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 15:26:11,384 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-12-14 15:26:11,446 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 281 for LOIs [2022-12-14 15:26:11,582 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:26:11,875 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:52,677 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 583 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)