./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/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_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/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_20f47270-b391-4060-9144-e5401d03d444/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 7bf93f828cd20929ce9c5f311b0e320b3840eed4f400e7f2f8e12c9cdbceb4d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:34:18,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:34:18,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:34:18,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:34:18,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:34:18,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:34:18,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:34:18,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:34:18,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:34:18,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:34:18,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:34:18,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:34:18,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:34:18,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:34:18,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:34:18,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:34:18,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:34:18,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:34:18,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:34:18,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:34:18,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:34:18,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:34:18,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:34:18,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:34:18,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:34:18,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:34:18,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:34:18,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:34:18,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:34:18,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:34:18,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:34:18,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:34:18,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:34:18,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:34:18,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:34:18,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:34:18,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:34:18,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:34:18,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:34:18,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:34:18,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:34:18,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:34:18,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:34:18,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:34:18,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:34:18,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:34:18,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:34:18,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:34:18,378 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:34:18,378 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:34:18,378 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:34:18,383 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:34:18,383 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:34:18,383 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:34:18,383 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:34:18,384 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:34:18,384 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:34:18,384 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:34:18,384 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:34:18,384 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:34:18,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:34:18,385 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:34:18,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:34:18,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:34:18,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:34:18,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:34:18,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:34:18,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:34:18,387 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:34:18,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:34:18,387 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:34:18,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:34:18,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:34:18,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:34:18,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:34:18,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:34:18,388 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:34:18,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:34:18,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:34:18,389 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:34:18,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:34:18,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:34:18,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:34:18,389 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_20f47270-b391-4060-9144-e5401d03d444/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bf93f828cd20929ce9c5f311b0e320b3840eed4f400e7f2f8e12c9cdbceb4d2 [2022-12-14 05:34:18,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:34:18,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:34:18,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:34:18,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:34:18,587 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:34:18,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2022-12-14 05:34:21,189 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:34:21,390 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:34:21,391 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2022-12-14 05:34:21,401 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/data/3d4be5f54/dffee1e1f82742bb82b907c0901b05bd/FLAG22d413fdc [2022-12-14 05:34:21,412 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/data/3d4be5f54/dffee1e1f82742bb82b907c0901b05bd [2022-12-14 05:34:21,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:34:21,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:34:21,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:34:21,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:34:21,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:34:21,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:21,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a449dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21, skipping insertion in model container [2022-12-14 05:34:21,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:21,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:34:21,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:34:21,697 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,728 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,734 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,735 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,737 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,831 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,832 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,835 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,859 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_20f47270-b391-4060-9144-e5401d03d444/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c[62671,62684] [2022-12-14 05:34:21,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:34:21,873 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:34:21,910 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,912 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,914 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,914 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,915 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,937 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,938 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,940 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:34:21,949 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_20f47270-b391-4060-9144-e5401d03d444/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c[62671,62684] [2022-12-14 05:34:21,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:34:21,974 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:34:21,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21 WrapperNode [2022-12-14 05:34:21,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:34:21,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:34:21,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:34:21,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:34:21,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:21,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,026 INFO L138 Inliner]: procedures = 125, calls = 205, calls flagged for inlining = 50, calls inlined = 42, statements flattened = 889 [2022-12-14 05:34:22,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:34:22,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:34:22,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:34:22,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:34:22,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:34:22,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:34:22,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:34:22,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:34:22,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (1/1) ... [2022-12-14 05:34:22,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:34:22,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:34:22,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:34:22,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:34:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 05:34:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 05:34:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 05:34:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 05:34:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 05:34:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 05:34:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 05:34:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 05:34:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 05:34:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 05:34:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 05:34:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 05:34:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 05:34:22,130 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 05:34:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 05:34:22,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 05:34:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 05:34:22,130 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 05:34:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 05:34:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 05:34:22,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 05:34:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:34:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 05:34:22,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 05:34:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 05:34:22,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 05:34:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 05:34:22,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 05:34:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 05:34:22,131 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 05:34:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 05:34:22,132 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 05:34:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 05:34:22,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 05:34:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 05:34:22,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 05:34:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 05:34:22,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 05:34:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 05:34:22,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 05:34:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:34:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 05:34:22,133 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 05:34:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 05:34:22,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 05:34:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:34:22,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:34:22,270 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:34:22,272 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:34:22,776 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:34:23,141 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:34:23,141 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 05:34:23,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:34:23 BoogieIcfgContainer [2022-12-14 05:34:23,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:34:23,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:34:23,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:34:23,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:34:23,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:34:21" (1/3) ... [2022-12-14 05:34:23,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ec6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:34:23, skipping insertion in model container [2022-12-14 05:34:23,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:34:21" (2/3) ... [2022-12-14 05:34:23,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ec6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:34:23, skipping insertion in model container [2022-12-14 05:34:23,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:34:23" (3/3) ... [2022-12-14 05:34:23,150 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product14.cil.c [2022-12-14 05:34:23,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:34:23,165 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:34:23,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:34:23,206 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;@752bc968, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:34:23,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:34:23,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 05:34:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 05:34:23,219 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:34:23,219 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 05:34:23,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:34:23,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:34:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash 675280416, now seen corresponding path program 1 times [2022-12-14 05:34:23,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:34:23,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570939596] [2022-12-14 05:34:23,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:34:23,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:34:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:34:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:34:23,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:34:23,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570939596] [2022-12-14 05:34:23,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570939596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:34:23,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:34:23,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:34:23,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681015167] [2022-12-14 05:34:23,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:34:23,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:34:23,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:34:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:34:23,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:34:23,451 INFO L87 Difference]: Start difference. First operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) 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 05:34:23,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:34:23,569 INFO L93 Difference]: Finished difference Result 254 states and 343 transitions. [2022-12-14 05:34:23,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:34:23,571 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 05:34:23,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:34:23,578 INFO L225 Difference]: With dead ends: 254 [2022-12-14 05:34:23,579 INFO L226 Difference]: Without dead ends: 170 [2022-12-14 05:34:23,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:34:23,584 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:34:23,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:34:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-14 05:34:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-12-14 05:34:23,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 96 states have (on average 1.3125) internal successors, (126), 100 states have internal predecessors, (126), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 05:34:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2022-12-14 05:34:23,621 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 63 [2022-12-14 05:34:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:34:23,622 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2022-12-14 05:34:23,622 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 05:34:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2022-12-14 05:34:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 05:34:23,624 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:34:23,624 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 05:34:23,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:34:23,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:34:23,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:34:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash -117949944, now seen corresponding path program 1 times [2022-12-14 05:34:23,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:34:23,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038348274] [2022-12-14 05:34:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:34:23,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:34:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:34:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:34:23,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:34:23,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038348274] [2022-12-14 05:34:23,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038348274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:34:23,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:34:23,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:34:23,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446363006] [2022-12-14 05:34:23,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:34:23,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:34:23,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:34:23,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:34:23,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:34:23,739 INFO L87 Difference]: Start difference. First operand 170 states and 229 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 05:34:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:34:23,835 INFO L93 Difference]: Finished difference Result 250 states and 328 transitions. [2022-12-14 05:34:23,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:34:23,836 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 05:34:23,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:34:23,837 INFO L225 Difference]: With dead ends: 250 [2022-12-14 05:34:23,837 INFO L226 Difference]: Without dead ends: 172 [2022-12-14 05:34:23,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:34:23,839 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:34:23,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:34:23,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-12-14 05:34:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-12-14 05:34:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 102 states have internal predecessors, (128), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 05:34:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2022-12-14 05:34:23,850 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 64 [2022-12-14 05:34:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:34:23,851 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2022-12-14 05:34:23,851 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 05:34:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2022-12-14 05:34:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 05:34:23,852 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:34:23,852 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 05:34:23,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:34:23,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:34:23,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:34:23,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1128602827, now seen corresponding path program 1 times [2022-12-14 05:34:23,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:34:23,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96093932] [2022-12-14 05:34:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:34:23,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:34:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:34:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:34:23,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:34:23,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96093932] [2022-12-14 05:34:23,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96093932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:34:23,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:34:23,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:34:23,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628720394] [2022-12-14 05:34:23,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:34:23,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:34:23,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:34:23,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:34:23,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:34:23,928 INFO L87 Difference]: Start difference. First operand 172 states and 231 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 05:34:24,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:34:24,026 INFO L93 Difference]: Finished difference Result 379 states and 529 transitions. [2022-12-14 05:34:24,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:34:24,027 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 05:34:24,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:34:24,028 INFO L225 Difference]: With dead ends: 379 [2022-12-14 05:34:24,028 INFO L226 Difference]: Without dead ends: 225 [2022-12-14 05:34:24,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:34:24,030 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 59 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:34:24,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 406 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:34:24,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-12-14 05:34:24,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2022-12-14 05:34:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 136 states have internal predecessors, (183), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 05:34:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 314 transitions. [2022-12-14 05:34:24,044 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 314 transitions. Word has length 69 [2022-12-14 05:34:24,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:34:24,045 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 314 transitions. [2022-12-14 05:34:24,045 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 05:34:24,045 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 314 transitions. [2022-12-14 05:34:24,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 05:34:24,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:34:24,046 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 05:34:24,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:34:24,047 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:34:24,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:34:24,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1679861831, now seen corresponding path program 1 times [2022-12-14 05:34:24,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:34:24,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653862494] [2022-12-14 05:34:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:34:24,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:34:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:34:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:34:24,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:34:24,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653862494] [2022-12-14 05:34:24,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653862494] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:34:24,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739528076] [2022-12-14 05:34:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:34:24,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:34:24,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:34:24,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:34:24,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:34:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:34:24,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:34:24,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:34:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:34:24,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:34:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:34:24,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739528076] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:34:24,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1134799849] [2022-12-14 05:34:24,508 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-12-14 05:34:24,508 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:34:24,511 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:34:24,515 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:34:24,515 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:34:54,585 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:34:54,900 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 05:34:55,217 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 468 for LOIs [2022-12-14 05:35:21,402 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 454 for LOIs [2022-12-14 05:35:21,716 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 466 for LOIs [2022-12-14 05:35:25,546 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 253 for LOIs [2022-12-14 05:35:35,020 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 235 for LOIs [2022-12-14 05:35:35,058 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 444 for LOIs [2022-12-14 05:35:35,703 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 442 for LOIs [2022-12-14 05:35:36,004 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:36:15,377 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 569 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:36:20,856 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 565 DAG size of output: 422 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:37:19,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1134799849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:37:19,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:37:19,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-12-14 05:37:19,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163835112] [2022-12-14 05:37:19,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:37:19,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-14 05:37:19,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:37:19,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-14 05:37:19,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=2412, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 05:37:19,822 INFO L87 Difference]: Start difference. First operand 220 states and 314 transitions. Second operand has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 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 05:37:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:37:49,442 INFO L93 Difference]: Finished difference Result 553 states and 840 transitions. [2022-12-14 05:37:49,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-14 05:37:49,443 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 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 70 [2022-12-14 05:37:49,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:37:49,445 INFO L225 Difference]: With dead ends: 553 [2022-12-14 05:37:49,445 INFO L226 Difference]: Without dead ends: 351 [2022-12-14 05:37:49,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 115.7s TimeCoverageRelationStatistics Valid=174, Invalid=3018, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 05:37:49,447 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 149 mSDsluCounter, 4887 mSDsCounter, 0 mSdLazyCounter, 5982 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 5998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:37:49,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 5125 Invalid, 5998 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 5982 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2022-12-14 05:37:49,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-12-14 05:37:49,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 297. [2022-12-14 05:37:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 196 states have (on average 1.433673469387755) internal successors, (281), 200 states have internal predecessors, (281), 74 states have call successors, (74), 29 states have call predecessors, (74), 26 states have return successors, (73), 69 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-14 05:37:49,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 428 transitions. [2022-12-14 05:37:49,570 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 428 transitions. Word has length 70 [2022-12-14 05:37:49,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:37:49,570 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 428 transitions. [2022-12-14 05:37:49,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 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 05:37:49,570 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 428 transitions. [2022-12-14 05:37:49,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 05:37:49,572 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:37:49,572 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 05:37:49,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:37:49,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:37:49,774 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:37:49,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:37:49,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1069054396, now seen corresponding path program 1 times [2022-12-14 05:37:49,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:37:49,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609844994] [2022-12-14 05:37:49,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:37:49,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:37:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:37:49,862 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 05:37:49,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:37:49,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609844994] [2022-12-14 05:37:49,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609844994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:37:49,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:37:49,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:37:49,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518507580] [2022-12-14 05:37:49,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:37:49,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:37:49,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:37:49,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:37:49,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:37:49,865 INFO L87 Difference]: Start difference. First operand 297 states and 428 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 05:37:50,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:37:50,162 INFO L93 Difference]: Finished difference Result 718 states and 1078 transitions. [2022-12-14 05:37:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:37:50,163 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 05:37:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:37:50,164 INFO L225 Difference]: With dead ends: 718 [2022-12-14 05:37:50,164 INFO L226 Difference]: Without dead ends: 447 [2022-12-14 05:37:50,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:37:50,166 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 57 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:37:50,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 430 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:37:50,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-12-14 05:37:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 440. [2022-12-14 05:37:50,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 308 states have (on average 1.5) internal successors, (462), 312 states have internal predecessors, (462), 105 states have call successors, (105), 29 states have call predecessors, (105), 26 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2022-12-14 05:37:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 671 transitions. [2022-12-14 05:37:50,343 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 671 transitions. Word has length 75 [2022-12-14 05:37:50,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:37:50,343 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 671 transitions. [2022-12-14 05:37:50,344 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 05:37:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 671 transitions. [2022-12-14 05:37:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 05:37:50,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:37:50,345 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 05:37:50,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:37:50,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:37:50,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:37:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash 848005841, now seen corresponding path program 1 times [2022-12-14 05:37:50,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:37:50,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976712729] [2022-12-14 05:37:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:37:50,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:37:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:37:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 05:37:50,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:37:50,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976712729] [2022-12-14 05:37:50,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976712729] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:37:50,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821477285] [2022-12-14 05:37:50,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:37:50,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:37:50,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:37:50,448 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:37:50,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:37:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:37:50,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:37:50,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:37:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 05:37:50,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:37:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 05:37:50,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821477285] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:37:50,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1498957664] [2022-12-14 05:37:50,669 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 05:37:50,669 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:37:50,670 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:37:50,670 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:37:50,670 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:38:25,621 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 05:38:25,943 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 05:38:26,253 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:39:03,530 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 568 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:39:23,350 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 570 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:39:29,317 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 566 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:39:31,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1498957664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:39:31,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:39:31,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 05:39:31,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167127359] [2022-12-14 05:39:31,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:39:31,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 05:39:31,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:39:31,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 05:39:31,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2022-12-14 05:39:31,934 INFO L87 Difference]: Start difference. First operand 440 states and 671 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 05:40:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:40:02,868 INFO L93 Difference]: Finished difference Result 855 states and 1338 transitions. [2022-12-14 05:40:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 05:40:02,869 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 05:40:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:40:02,871 INFO L225 Difference]: With dead ends: 855 [2022-12-14 05:40:02,872 INFO L226 Difference]: Without dead ends: 553 [2022-12-14 05:40:02,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 87.9s TimeCoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 05:40:02,873 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 288 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:40:02,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 3189 Invalid, 2433 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 05:40:02,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-12-14 05:40:03,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 472. [2022-12-14 05:40:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 336 states have (on average 1.4970238095238095) internal successors, (503), 342 states have internal predecessors, (503), 108 states have call successors, (108), 30 states have call predecessors, (108), 27 states have return successors, (107), 101 states have call predecessors, (107), 107 states have call successors, (107) [2022-12-14 05:40:03,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 718 transitions. [2022-12-14 05:40:03,118 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 718 transitions. Word has length 76 [2022-12-14 05:40:03,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:40:03,118 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 718 transitions. [2022-12-14 05:40:03,118 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 05:40:03,118 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 718 transitions. [2022-12-14 05:40:03,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 05:40:03,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:40:03,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:40:03,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:40:03,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:40:03,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:40:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:40:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash -846048892, now seen corresponding path program 1 times [2022-12-14 05:40:03,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:40:03,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25697474] [2022-12-14 05:40:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:40:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:40:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:40:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:40:03,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:40:03,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25697474] [2022-12-14 05:40:03,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25697474] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:40:03,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77053817] [2022-12-14 05:40:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:40:03,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:40:03,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:40:03,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:40:03,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:40:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:40:03,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:40:03,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:40:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:40:03,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:40:03,698 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:40:03,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77053817] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:40:03,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [774669302] [2022-12-14 05:40:03,700 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 05:40:03,700 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:40:03,701 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:40:03,701 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:40:03,701 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:41:45,621 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 05:41:45,931 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 05:41:46,227 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 05:41:46,521 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 226 for LOIs [2022-12-14 05:41:47,774 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 05:41:47,835 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 05:41:47,868 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 05:41:48,186 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 226 for LOIs [2022-12-14 05:41:48,779 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 227 for LOIs [2022-12-14 05:41:52,674 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 209 for LOIs [2022-12-14 05:41:52,705 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 218 for LOIs [2022-12-14 05:41:52,814 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 202 for LOIs [2022-12-14 05:41:52,845 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:42:31,014 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 525 DAG size of output: 388 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:43:05,185 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 530 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:43:29,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [774669302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:43:29,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:43:29,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [4, 4, 4] total 61 [2022-12-14 05:43:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979792870] [2022-12-14 05:43:29,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:43:29,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-14 05:43:29,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:43:29,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-14 05:43:29,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=3490, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 05:43:29,997 INFO L87 Difference]: Start difference. First operand 472 states and 718 transitions. Second operand has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 05:44:06,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:06,833 INFO L93 Difference]: Finished difference Result 931 states and 1448 transitions. [2022-12-14 05:44:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-14 05:44:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 79 [2022-12-14 05:44:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:06,837 INFO L225 Difference]: With dead ends: 931 [2022-12-14 05:44:06,837 INFO L226 Difference]: Without dead ends: 629 [2022-12-14 05:44:06,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 113.9s TimeCoverageRelationStatistics Valid=241, Invalid=4871, Unknown=0, NotChecked=0, Total=5112 [2022-12-14 05:44:06,840 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 225 mSDsluCounter, 4497 mSDsCounter, 0 mSdLazyCounter, 7541 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 7567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 7541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:06,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 4718 Invalid, 7567 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [26 Valid, 7541 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2022-12-14 05:44:06,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-12-14 05:44:07,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 555. [2022-12-14 05:44:07,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 399 states have (on average 1.4786967418546366) internal successors, (590), 408 states have internal predecessors, (590), 121 states have call successors, (121), 40 states have call predecessors, (121), 34 states have return successors, (120), 108 states have call predecessors, (120), 120 states have call successors, (120) [2022-12-14 05:44:07,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 831 transitions. [2022-12-14 05:44:07,187 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 831 transitions. Word has length 79 [2022-12-14 05:44:07,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:07,187 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 831 transitions. [2022-12-14 05:44:07,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 05:44:07,187 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 831 transitions. [2022-12-14 05:44:07,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 05:44:07,189 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:07,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:07,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:44:07,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:07,390 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:44:07,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:07,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1564709518, now seen corresponding path program 1 times [2022-12-14 05:44:07,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:07,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813855072] [2022-12-14 05:44:07,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:07,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:44:07,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:07,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813855072] [2022-12-14 05:44:07,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813855072] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:44:07,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845415964] [2022-12-14 05:44:07,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:07,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:07,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:07,501 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:44:07,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:44:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:07,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:44:07,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:44:07,715 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:44:07,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:44:07,758 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:44:07,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845415964] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:44:07,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1342123395] [2022-12-14 05:44:07,761 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-12-14 05:44:07,761 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:44:07,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:44:07,761 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:44:07,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:45:07,226 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:45:07,534 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 233 for LOIs [2022-12-14 05:45:07,595 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 232 for LOIs [2022-12-14 05:45:07,660 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 226 for LOIs [2022-12-14 05:45:08,932 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 05:45:08,992 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 05:45:09,026 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 05:45:09,345 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 226 for LOIs [2022-12-14 05:45:09,899 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 227 for LOIs [2022-12-14 05:45:15,875 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 215 for LOIs [2022-12-14 05:45:15,913 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 209 for LOIs [2022-12-14 05:45:15,944 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 409 for LOIs [2022-12-14 05:45:16,345 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 234 for LOIs [2022-12-14 05:45:16,388 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 204 for LOIs [2022-12-14 05:45:16,420 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:46:38,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1342123395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:46:38,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:46:38,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 05:46:38,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301121520] [2022-12-14 05:46:38,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:46:38,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 05:46:38,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:46:38,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 05:46:38,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=4251, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 05:46:38,110 INFO L87 Difference]: Start difference. First operand 555 states and 831 transitions. Second operand has 62 states, 37 states have (on average 1.135135135135135) internal successors, (42), 34 states have internal predecessors, (42), 20 states have call successors, (20), 15 states have call predecessors, (20), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:47:23,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:47:23,864 INFO L93 Difference]: Finished difference Result 713 states and 1062 transitions. [2022-12-14 05:47:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-12-14 05:47:23,864 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 37 states have (on average 1.135135135135135) internal successors, (42), 34 states have internal predecessors, (42), 20 states have call successors, (20), 15 states have call predecessors, (20), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 85 [2022-12-14 05:47:23,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:47:23,866 INFO L225 Difference]: With dead ends: 713 [2022-12-14 05:47:23,866 INFO L226 Difference]: Without dead ends: 642 [2022-12-14 05:47:23,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1291 ImplicationChecksByTransitivity, 104.0s TimeCoverageRelationStatistics Valid=272, Invalid=6208, Unknown=0, NotChecked=0, Total=6480 [2022-12-14 05:47:23,868 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 293 mSDsluCounter, 5086 mSDsCounter, 0 mSdLazyCounter, 8663 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 8693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 8663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:47:23,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 5312 Invalid, 8693 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 8663 Invalid, 0 Unknown, 0 Unchecked, 22.5s Time] [2022-12-14 05:47:23,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-12-14 05:47:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 561. [2022-12-14 05:47:24,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 401 states have (on average 1.4763092269326683) internal successors, (592), 410 states have internal predecessors, (592), 122 states have call successors, (122), 43 states have call predecessors, (122), 37 states have return successors, (121), 110 states have call predecessors, (121), 121 states have call successors, (121) [2022-12-14 05:47:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 835 transitions. [2022-12-14 05:47:24,236 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 835 transitions. Word has length 85 [2022-12-14 05:47:24,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:47:24,236 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 835 transitions. [2022-12-14 05:47:24,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 37 states have (on average 1.135135135135135) internal successors, (42), 34 states have internal predecessors, (42), 20 states have call successors, (20), 15 states have call predecessors, (20), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:47:24,237 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 835 transitions. [2022-12-14 05:47:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 05:47:24,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:47:24,238 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 05:47:24,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 05:47:24,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 05:47:24,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:47:24,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:47:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash 89587229, now seen corresponding path program 1 times [2022-12-14 05:47:24,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:47:24,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784798153] [2022-12-14 05:47:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:47:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:47:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:47:24,558 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 05:47:24,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:47:24,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784798153] [2022-12-14 05:47:24,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784798153] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:47:24,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275312331] [2022-12-14 05:47:24,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:47:24,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:47:24,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:47:24,559 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:47:24,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f47270-b391-4060-9144-e5401d03d444/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:47:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:47:24,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:47:24,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:47:24,776 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 05:47:24,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:47:24,820 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 05:47:24,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275312331] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:47:24,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [288778055] [2022-12-14 05:47:24,823 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 05:47:24,823 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:47:24,824 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:47:24,824 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:47:24,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:48:13,491 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-12-14 05:48:13,810 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 05:48:14,121 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-12-14 05:48:15,646 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 05:48:15,684 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 250 for LOIs [2022-12-14 05:48:16,371 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 249 for LOIs [2022-12-14 05:48:20,318 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 231 for LOIs [2022-12-14 05:48:20,355 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 05:48:22,254 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 226 for LOIs [2022-12-14 05:48:22,291 INFO L180 IcfgInterpreter]: Interpretation finished