./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V --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 66ba4360d8cd17925c78e04f17940e3bee0e828bd2ae8cc06c9e6a2549687bf9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:17:17,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:17:17,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:17:17,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:17:17,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:17:17,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:17:17,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:17:17,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:17:17,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:17:17,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:17:17,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:17:17,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:17:17,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:17:17,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:17:17,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:17:17,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:17:17,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:17:17,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:17:17,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:17:17,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:17:17,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:17:17,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:17:17,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:17:17,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:17:17,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:17:17,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:17:17,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:17:17,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:17:17,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:17:17,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:17:17,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:17:17,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:17:17,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:17:17,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:17:17,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:17:17,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:17:17,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:17:17,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:17:17,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:17:17,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:17:17,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:17:17,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:17:17,924 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:17:17,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:17:17,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:17:17,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:17:17,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:17:17,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:17:17,934 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:17:17,934 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:17:17,934 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:17:17,934 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:17:17,936 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:17:17,936 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:17:17,936 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:17:17,937 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:17:17,937 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:17:17,937 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:17:17,937 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:17:17,938 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:17:17,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:17:17,939 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:17:17,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:17:17,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:17:17,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:17:17,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:17:17,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:17:17,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:17:17,942 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:17:17,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:17:17,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:17:17,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:17:17,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:17:17,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:17:17,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:17:17,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:17:17,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:17:17,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:17:17,946 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:17:17,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:17:17,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:17:17,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:17:17,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:17:17,947 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66ba4360d8cd17925c78e04f17940e3bee0e828bd2ae8cc06c9e6a2549687bf9 [2021-11-23 02:17:18,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:17:18,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:17:18,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:17:18,313 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:17:18,314 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:17:18,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec27_product35.cil.c [2021-11-23 02:17:18,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/data/02d3938b4/8c96a99c18334bd68fb3754a52b16c28/FLAGc464e6819 [2021-11-23 02:17:19,049 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:17:19,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/sv-benchmarks/c/product-lines/email_spec27_product35.cil.c [2021-11-23 02:17:19,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/data/02d3938b4/8c96a99c18334bd68fb3754a52b16c28/FLAGc464e6819 [2021-11-23 02:17:19,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/data/02d3938b4/8c96a99c18334bd68fb3754a52b16c28 [2021-11-23 02:17:19,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:17:19,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:17:19,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:17:19,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:17:19,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:17:19,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:17:19" (1/1) ... [2021-11-23 02:17:19,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522ecce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:19, skipping insertion in model container [2021-11-23 02:17:19,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:17:19" (1/1) ... [2021-11-23 02:17:19,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:17:19,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:17:19,938 WARN L230 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_3754c90f-2504-41d6-ba1b-235f5f1afd78/sv-benchmarks/c/product-lines/email_spec27_product35.cil.c[40704,40717] [2021-11-23 02:17:20,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:17:20,198 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:17:20,263 WARN L230 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_3754c90f-2504-41d6-ba1b-235f5f1afd78/sv-benchmarks/c/product-lines/email_spec27_product35.cil.c[40704,40717] [2021-11-23 02:17:20,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:17:20,367 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:17:20,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20 WrapperNode [2021-11-23 02:17:20,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:17:20,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:17:20,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:17:20,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:17:20,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,499 INFO L137 Inliner]: procedures = 137, calls = 248, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1140 [2021-11-23 02:17:20,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:17:20,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:17:20,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:17:20,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:17:20,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:17:20,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:17:20,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:17:20,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:17:20,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (1/1) ... [2021-11-23 02:17:20,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:17:20,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:17:20,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:17:20,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:17:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 02:17:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 02:17:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-11-23 02:17:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-11-23 02:17:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 02:17:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 02:17:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-11-23 02:17:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-11-23 02:17:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 02:17:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 02:17:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 02:17:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 02:17:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-11-23 02:17:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-11-23 02:17:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 02:17:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 02:17:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 02:17:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 02:17:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 02:17:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 02:17:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 02:17:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 02:17:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 02:17:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 02:17:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 02:17:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 02:17:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 02:17:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 02:17:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 02:17:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 02:17:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 02:17:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 02:17:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 02:17:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:17:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 02:17:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 02:17:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-11-23 02:17:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-11-23 02:17:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-11-23 02:17:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-11-23 02:17:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 02:17:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 02:17:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 02:17:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 02:17:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 02:17:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 02:17:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2021-11-23 02:17:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2021-11-23 02:17:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-11-23 02:17:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-11-23 02:17:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 02:17:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 02:17:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 02:17:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 02:17:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 02:17:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 02:17:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 02:17:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 02:17:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:17:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 02:17:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 02:17:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-11-23 02:17:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-11-23 02:17:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:17:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:17:21,117 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:17:21,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:17:22,252 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:17:22,841 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:17:22,842 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:17:22,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:17:22 BoogieIcfgContainer [2021-11-23 02:17:22,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:17:22,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:17:22,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:17:22,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:17:22,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:17:19" (1/3) ... [2021-11-23 02:17:22,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f8b25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:17:22, skipping insertion in model container [2021-11-23 02:17:22,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:20" (2/3) ... [2021-11-23 02:17:22,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f8b25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:17:22, skipping insertion in model container [2021-11-23 02:17:22,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:17:22" (3/3) ... [2021-11-23 02:17:22,860 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_product35.cil.c [2021-11-23 02:17:22,870 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:17:22,870 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:17:22,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:17:22,952 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:17:22,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:17:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 139 states have (on average 1.2805755395683454) internal successors, (178), 144 states have internal predecessors, (178), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2021-11-23 02:17:22,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 02:17:22,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:22,998 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:17:22,999 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:17:23,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:23,005 INFO L85 PathProgramCache]: Analyzing trace with hash 912577344, now seen corresponding path program 1 times [2021-11-23 02:17:23,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:23,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537944309] [2021-11-23 02:17:23,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:23,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:17:23,594 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:23,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537944309] [2021-11-23 02:17:23,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537944309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:17:23,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:17:23,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:17:23,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221785682] [2021-11-23 02:17:23,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:23,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:17:23,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:23,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:17:23,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:17:23,659 INFO L87 Difference]: Start difference. First operand has 248 states, 139 states have (on average 1.2805755395683454) internal successors, (178), 144 states have internal predecessors, (178), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:17:23,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:23,868 INFO L93 Difference]: Finished difference Result 404 states and 535 transitions. [2021-11-23 02:17:23,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:17:23,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 99 [2021-11-23 02:17:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:23,885 INFO L225 Difference]: With dead ends: 404 [2021-11-23 02:17:23,886 INFO L226 Difference]: Without dead ends: 245 [2021-11-23 02:17:23,894 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:17:23,899 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:23,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:17:23,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-11-23 02:17:23,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2021-11-23 02:17:23,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 137 states have (on average 1.2554744525547445) internal successors, (172), 141 states have internal predecessors, (172), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2021-11-23 02:17:23,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 325 transitions. [2021-11-23 02:17:23,978 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 325 transitions. Word has length 99 [2021-11-23 02:17:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:23,980 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 325 transitions. [2021-11-23 02:17:23,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:17:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 325 transitions. [2021-11-23 02:17:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-23 02:17:23,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:23,989 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:17:23,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:17:23,990 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:17:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:23,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2040279966, now seen corresponding path program 1 times [2021-11-23 02:17:23,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:23,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112481235] [2021-11-23 02:17:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:23,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:24,130 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 02:17:24,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:24,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112481235] [2021-11-23 02:17:24,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112481235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:17:24,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:17:24,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:17:24,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970682135] [2021-11-23 02:17:24,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:24,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:17:24,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:24,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:17:24,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:17:24,135 INFO L87 Difference]: Start difference. First operand 245 states and 325 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 02:17:24,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:24,277 INFO L93 Difference]: Finished difference Result 400 states and 520 transitions. [2021-11-23 02:17:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:17:24,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 111 [2021-11-23 02:17:24,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:24,282 INFO L225 Difference]: With dead ends: 400 [2021-11-23 02:17:24,282 INFO L226 Difference]: Without dead ends: 247 [2021-11-23 02:17:24,284 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:17:24,285 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 0 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:24,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:17:24,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-11-23 02:17:24,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-11-23 02:17:24,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 139 states have (on average 1.2517985611510791) internal successors, (174), 143 states have internal predecessors, (174), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2021-11-23 02:17:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 327 transitions. [2021-11-23 02:17:24,372 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 327 transitions. Word has length 111 [2021-11-23 02:17:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:24,375 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 327 transitions. [2021-11-23 02:17:24,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 02:17:24,376 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 327 transitions. [2021-11-23 02:17:24,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-23 02:17:24,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:24,385 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:17:24,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:17:24,385 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:17:24,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:24,386 INFO L85 PathProgramCache]: Analyzing trace with hash -808860573, now seen corresponding path program 1 times [2021-11-23 02:17:24,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:24,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645755507] [2021-11-23 02:17:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:24,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 02:17:24,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:24,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645755507] [2021-11-23 02:17:24,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645755507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:17:24,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:17:24,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:17:24,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483789051] [2021-11-23 02:17:24,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:24,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:17:24,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:24,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:17:24,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:17:24,564 INFO L87 Difference]: Start difference. First operand 247 states and 327 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 02:17:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:24,755 INFO L93 Difference]: Finished difference Result 529 states and 721 transitions. [2021-11-23 02:17:24,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:17:24,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 116 [2021-11-23 02:17:24,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:24,763 INFO L225 Difference]: With dead ends: 529 [2021-11-23 02:17:24,763 INFO L226 Difference]: Without dead ends: 300 [2021-11-23 02:17:24,765 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:17:24,773 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 59 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:24,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 569 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:17:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-23 02:17:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 295. [2021-11-23 02:17:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 173 states have (on average 1.323699421965318) internal successors, (229), 177 states have internal predecessors, (229), 91 states have call successors, (91), 30 states have call predecessors, (91), 30 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2021-11-23 02:17:24,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 410 transitions. [2021-11-23 02:17:24,827 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 410 transitions. Word has length 116 [2021-11-23 02:17:24,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:24,828 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 410 transitions. [2021-11-23 02:17:24,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 02:17:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 410 transitions. [2021-11-23 02:17:24,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-23 02:17:24,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:24,834 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:17:24,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:17:24,835 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:17:24,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:24,836 INFO L85 PathProgramCache]: Analyzing trace with hash 748799449, now seen corresponding path program 1 times [2021-11-23 02:17:24,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:24,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184776720] [2021-11-23 02:17:24,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:24,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 02:17:24,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:24,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184776720] [2021-11-23 02:17:24,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184776720] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:17:24,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576296344] [2021-11-23 02:17:24,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:24,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:17:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:17:25,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:17:25,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:17:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:25,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:17:25,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:17:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 02:17:25,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:17:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 02:17:25,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576296344] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:17:25,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [525385629] [2021-11-23 02:17:26,005 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2021-11-23 02:17:26,005 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:17:26,011 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:17:26,017 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:17:26,018 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:17:53,665 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:17:53,968 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2021-11-23 02:17:56,468 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2021-11-23 02:17:56,849 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2021-11-23 02:18:00,386 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2021-11-23 02:18:00,437 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 229 for LOIs [2021-11-23 02:18:00,482 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 237 for LOIs [2021-11-23 02:18:00,525 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2021-11-23 02:18:00,591 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:18:45,848 WARN L227 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 508 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:19:01,945 WARN L227 SmtUtils]: Spent 15.83s on a formula simplification. DAG size of input: 583 DAG size of output: 452 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:19:17,987 WARN L227 SmtUtils]: Spent 15.64s on a formula simplification. DAG size of input: 585 DAG size of output: 427 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:19:49,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [525385629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:19:49,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:19:49,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2021-11-23 02:19:49,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297818983] [2021-11-23 02:19:49,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:19:49,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-23 02:19:49,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:19:49,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-23 02:19:49,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1958, Unknown=0, NotChecked=0, Total=2070 [2021-11-23 02:19:49,655 INFO L87 Difference]: Start difference. First operand 295 states and 410 transitions. Second operand has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2021-11-23 02:19:59,810 WARN L227 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 487 DAG size of output: 400 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:20:06,986 WARN L227 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 496 DAG size of output: 380 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:20:14,529 WARN L227 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 563 DAG size of output: 364 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:20:21,961 WARN L227 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 564 DAG size of output: 360 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:20:29,506 WARN L227 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 565 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:20:36,913 WARN L227 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 562 DAG size of output: 355 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:20:45,807 WARN L227 SmtUtils]: Spent 8.00s on a formula simplification. DAG size of input: 575 DAG size of output: 368 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:20:52,083 WARN L227 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 516 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:21:12,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:12,488 INFO L93 Difference]: Finished difference Result 663 states and 956 transitions. [2021-11-23 02:21:12,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-23 02:21:12,489 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) Word has length 117 [2021-11-23 02:21:12,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:12,493 INFO L225 Difference]: With dead ends: 663 [2021-11-23 02:21:12,493 INFO L226 Difference]: Without dead ends: 386 [2021-11-23 02:21:12,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 172.2s TimeCoverageRelationStatistics Valid=189, Invalid=2891, Unknown=0, NotChecked=0, Total=3080 [2021-11-23 02:21:12,497 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 281 mSDsluCounter, 7643 mSDsCounter, 0 mSdLazyCounter, 6771 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 7670 SdHoareTripleChecker+Invalid, 6808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 6771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:12,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 7670 Invalid, 6808 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [37 Valid, 6771 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2021-11-23 02:21:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-23 02:21:12,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 362. [2021-11-23 02:21:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 229 states have (on average 1.3406113537117903) internal successors, (307), 233 states have internal predecessors, (307), 97 states have call successors, (97), 37 states have call predecessors, (97), 35 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-23 02:21:12,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 500 transitions. [2021-11-23 02:21:12,592 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 500 transitions. Word has length 117 [2021-11-23 02:21:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:12,593 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 500 transitions. [2021-11-23 02:21:12,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2021-11-23 02:21:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 500 transitions. [2021-11-23 02:21:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 02:21:12,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:12,597 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:12,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:21:12,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:21:12,801 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:12,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:12,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1778344412, now seen corresponding path program 1 times [2021-11-23 02:21:12,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:12,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863354460] [2021-11-23 02:21:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:12,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 02:21:12,933 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:12,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863354460] [2021-11-23 02:21:12,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863354460] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:21:12,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48016788] [2021-11-23 02:21:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:12,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:21:12,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:21:12,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:21:12,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:21:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:13,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:21:13,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:21:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 02:21:13,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:21:13,654 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 02:21:13,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48016788] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:21:13,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1414075660] [2021-11-23 02:21:13,662 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2021-11-23 02:21:13,662 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:21:13,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:21:13,664 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:21:13,664 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:21:43,512 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:21:43,767 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 262 for LOIs [2021-11-23 02:21:45,525 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2021-11-23 02:21:45,772 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 262 for LOIs [2021-11-23 02:21:48,565 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2021-11-23 02:21:48,605 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 224 for LOIs [2021-11-23 02:21:48,651 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 232 for LOIs [2021-11-23 02:21:48,690 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 249 for LOIs [2021-11-23 02:21:48,741 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:22:34,176 WARN L227 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 508 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:22:49,284 WARN L227 SmtUtils]: Spent 13.65s on a formula simplification. DAG size of input: 587 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:23:00,457 WARN L227 SmtUtils]: Spent 9.66s on a formula simplification. DAG size of input: 585 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:23:21,289 WARN L227 SmtUtils]: Spent 19.25s on a formula simplification. DAG size of input: 584 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:23:34,715 WARN L227 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 572 DAG size of output: 358 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:24:02,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1414075660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:24:02,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:24:02,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 50 [2021-11-23 02:24:02,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859862053] [2021-11-23 02:24:02,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:24:02,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-23 02:24:02,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:24:02,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-23 02:24:02,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2314, Unknown=0, NotChecked=0, Total=2450 [2021-11-23 02:24:02,315 INFO L87 Difference]: Start difference. First operand 362 states and 500 transitions. Second operand has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2021-11-23 02:24:10,053 WARN L227 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 486 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:24:33,380 WARN L227 SmtUtils]: Spent 18.05s on a formula simplification. DAG size of input: 490 DAG size of output: 442 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:24:50,892 WARN L227 SmtUtils]: Spent 17.15s on a formula simplification. DAG size of input: 585 DAG size of output: 406 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:25:24,395 WARN L227 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 596 DAG size of output: 322 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:25:39,599 WARN L227 SmtUtils]: Spent 14.51s on a formula simplification. DAG size of input: 585 DAG size of output: 403 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:25:55,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:25:55,494 INFO L93 Difference]: Finished difference Result 758 states and 1087 transitions. [2021-11-23 02:25:55,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-23 02:25:55,494 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) Word has length 123 [2021-11-23 02:25:55,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:25:55,498 INFO L225 Difference]: With dead ends: 758 [2021-11-23 02:25:55,499 INFO L226 Difference]: Without dead ends: 481 [2021-11-23 02:25:55,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 322 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 230.2s TimeCoverageRelationStatistics Valid=219, Invalid=3687, Unknown=0, NotChecked=0, Total=3906 [2021-11-23 02:25:55,505 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 163 mSDsluCounter, 6434 mSDsCounter, 0 mSdLazyCounter, 5935 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 6461 SdHoareTripleChecker+Invalid, 5970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:25:55,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 6461 Invalid, 5970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 5935 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2021-11-23 02:25:55,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-11-23 02:25:55,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 376. [2021-11-23 02:25:55,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 241 states have (on average 1.3485477178423237) internal successors, (325), 245 states have internal predecessors, (325), 98 states have call successors, (98), 38 states have call predecessors, (98), 36 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2021-11-23 02:25:55,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 520 transitions. [2021-11-23 02:25:55,613 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 520 transitions. Word has length 123 [2021-11-23 02:25:55,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:25:55,614 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 520 transitions. [2021-11-23 02:25:55,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2021-11-23 02:25:55,614 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 520 transitions. [2021-11-23 02:25:55,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-23 02:25:55,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:25:55,617 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:25:55,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:25:55,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:25:55,837 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:25:55,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:25:55,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1735392277, now seen corresponding path program 1 times [2021-11-23 02:25:55,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:25:55,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913897808] [2021-11-23 02:25:55,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:25:55,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:25:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:25:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:25:55,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:25:55,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913897808] [2021-11-23 02:25:55,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913897808] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:25:55,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860279281] [2021-11-23 02:25:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:25:55,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:25:55,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:25:55,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:25:55,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3754c90f-2504-41d6-ba1b-235f5f1afd78/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:25:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:25:56,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:25:56,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:25:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:25:56,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:25:56,573 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:25:56,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860279281] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:25:56,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1271993330] [2021-11-23 02:25:56,577 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2021-11-23 02:25:56,578 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:25:56,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:25:56,579 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:25:56,579 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:26:19,586 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:26:19,845 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2021-11-23 02:26:21,555 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2021-11-23 02:26:21,598 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2021-11-23 02:26:21,843 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2021-11-23 02:26:24,653 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 277 for LOIs [2021-11-23 02:26:38,876 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2021-11-23 02:26:39,528 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2021-11-23 02:26:39,575 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2021-11-23 02:26:40,064 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2021-11-23 02:26:40,139 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 431 for LOIs [2021-11-23 02:26:40,640 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2021-11-23 02:26:42,155 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2021-11-23 02:26:42,203 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2021-11-23 02:26:42,257 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:27:26,775 WARN L227 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 508 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:27:42,834 WARN L227 SmtUtils]: Spent 15.78s on a formula simplification. DAG size of input: 583 DAG size of output: 452 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:27:53,286 WARN L227 SmtUtils]: Spent 8.95s on a formula simplification. DAG size of input: 591 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:28:00,889 WARN L227 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 589 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:28:20,159 WARN L227 SmtUtils]: Spent 12.58s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)