./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P --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 c86855dab8667fe80df418e2dda62d52081f1a657b6492a63fb3d2a1da4890b5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:21:59,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:21:59,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:21:59,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:21:59,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:21:59,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:22:00,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:22:00,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:22:00,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:22:00,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:22:00,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:22:00,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:22:00,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:22:00,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:22:00,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:22:00,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:22:00,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:22:00,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:22:00,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:22:00,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:22:00,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:22:00,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:22:00,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:22:00,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:22:00,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:22:00,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:22:00,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:22:00,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:22:00,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:22:00,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:22:00,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:22:00,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:22:00,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:22:00,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:22:00,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:22:00,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:22:00,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:22:00,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:22:00,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:22:00,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:22:00,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:22:00,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:22:00,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:22:00,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:22:00,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:22:00,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:22:00,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:22:00,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:22:00,095 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:22:00,096 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:22:00,096 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:22:00,096 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:22:00,097 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:22:00,098 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:22:00,098 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:22:00,098 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:22:00,098 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:22:00,099 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:22:00,099 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:22:00,099 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:22:00,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:22:00,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:22:00,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:22:00,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:22:00,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:22:00,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:22:00,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:22:00,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:22:00,105 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:22:00,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:22:00,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:22:00,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:22:00,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:22:00,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:22:00,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:22:00,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:22:00,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:22:00,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:22:00,108 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:22:00,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:22:00,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:22:00,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:22:00,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:22:00,109 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_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c86855dab8667fe80df418e2dda62d52081f1a657b6492a63fb3d2a1da4890b5 [2021-11-21 01:22:00,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:22:00,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:22:00,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:22:00,419 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:22:00,420 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:22:00,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c [2021-11-21 01:22:00,510 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/data/6f24a12c0/872324cf211b471884788e1c4dbce361/FLAGd74820e1b [2021-11-21 01:22:01,247 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:22:01,248 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c [2021-11-21 01:22:01,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/data/6f24a12c0/872324cf211b471884788e1c4dbce361/FLAGd74820e1b [2021-11-21 01:22:01,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/data/6f24a12c0/872324cf211b471884788e1c4dbce361 [2021-11-21 01:22:01,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:22:01,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:22:01,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:22:01,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:22:01,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:22:01,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:22:01" (1/1) ... [2021-11-21 01:22:01,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1838bd49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:01, skipping insertion in model container [2021-11-21 01:22:01,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:22:01" (1/1) ... [2021-11-21 01:22:01,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:22:01,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:22:02,018 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_27ee6b94-be40-4d9b-b46c-9166a06c640a/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c[17001,17014] [2021-11-21 01:22:02,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:22:02,340 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:22:02,386 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_27ee6b94-be40-4d9b-b46c-9166a06c640a/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c[17001,17014] [2021-11-21 01:22:02,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:22:02,529 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:22:02,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02 WrapperNode [2021-11-21 01:22:02,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:22:02,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:22:02,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:22:02,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:22:02,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,669 INFO L137 Inliner]: procedures = 152, calls = 290, calls flagged for inlining = 68, calls inlined = 65, statements flattened = 1339 [2021-11-21 01:22:02,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:22:02,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:22:02,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:22:02,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:22:02,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:22:02,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:22:02,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:22:02,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:22:02,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (1/1) ... [2021-11-21 01:22:02,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:22:02,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:22:02,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:22:02,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:22:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-21 01:22:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-21 01:22:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2021-11-21 01:22:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2021-11-21 01:22:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2021-11-21 01:22:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2021-11-21 01:22:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-11-21 01:22:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-11-21 01:22:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-21 01:22:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-21 01:22:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-11-21 01:22:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-11-21 01:22:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-21 01:22:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-21 01:22:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2021-11-21 01:22:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2021-11-21 01:22:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-21 01:22:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-21 01:22:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2021-11-21 01:22:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2021-11-21 01:22:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-21 01:22:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-21 01:22:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-21 01:22:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-21 01:22:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-21 01:22:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-21 01:22:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2021-11-21 01:22:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2021-11-21 01:22:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2021-11-21 01:22:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2021-11-21 01:22:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-21 01:22:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-21 01:22:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-21 01:22:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-21 01:22:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-21 01:22:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-21 01:22:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-21 01:22:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2021-11-21 01:22:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2021-11-21 01:22:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-21 01:22:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-21 01:22:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-21 01:22:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-21 01:22:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-21 01:22:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-21 01:22:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2021-11-21 01:22:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2021-11-21 01:22:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:22:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-21 01:22:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-21 01:22:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-11-21 01:22:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-11-21 01:22:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2021-11-21 01:22:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2021-11-21 01:22:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2021-11-21 01:22:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2021-11-21 01:22:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2021-11-21 01:22:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2021-11-21 01:22:02,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-11-21 01:22:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-11-21 01:22:02,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-21 01:22:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-21 01:22:02,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-21 01:22:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-21 01:22:02,924 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-21 01:22:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-21 01:22:02,924 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-11-21 01:22:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-11-21 01:22:02,924 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-21 01:22:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-21 01:22:02,924 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-21 01:22:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-21 01:22:02,925 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2021-11-21 01:22:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2021-11-21 01:22:02,925 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2021-11-21 01:22:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2021-11-21 01:22:02,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-21 01:22:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-21 01:22:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-21 01:22:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-21 01:22:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:22:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-21 01:22:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-21 01:22:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2021-11-21 01:22:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2021-11-21 01:22:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-11-21 01:22:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-11-21 01:22:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-11-21 01:22:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-11-21 01:22:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:22:02,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:22:03,207 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:22:03,210 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:22:04,521 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:22:05,099 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:22:05,099 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:22:05,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:22:05 BoogieIcfgContainer [2021-11-21 01:22:05,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:22:05,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:22:05,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:22:05,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:22:05,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:22:01" (1/3) ... [2021-11-21 01:22:05,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e189fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:22:05, skipping insertion in model container [2021-11-21 01:22:05,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:22:02" (2/3) ... [2021-11-21 01:22:05,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e189fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:22:05, skipping insertion in model container [2021-11-21 01:22:05,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:22:05" (3/3) ... [2021-11-21 01:22:05,116 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_productSimulator.cil.c [2021-11-21 01:22:05,126 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:22:05,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:22:05,201 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:22:05,210 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 [2021-11-21 01:22:05,211 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:22:05,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 384 states, 227 states have (on average 1.330396475770925) internal successors, (302), 247 states have internal predecessors, (302), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-21 01:22:05,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-21 01:22:05,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:05,289 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:05,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:22:05,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:05,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1686608687, now seen corresponding path program 1 times [2021-11-21 01:22:05,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:05,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966023474] [2021-11-21 01:22:05,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:05,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-21 01:22:05,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:05,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966023474] [2021-11-21 01:22:05,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966023474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:22:05,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:22:05,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:22:05,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881992738] [2021-11-21 01:22:05,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:22:05,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:22:05,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:22:05,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:22:05,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:22:05,859 INFO L87 Difference]: Start difference. First operand has 384 states, 227 states have (on average 1.330396475770925) internal successors, (302), 247 states have internal predecessors, (302), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:22:06,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:22:06,237 INFO L93 Difference]: Finished difference Result 740 states and 1014 transitions. [2021-11-21 01:22:06,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:22:06,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2021-11-21 01:22:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:22:06,269 INFO L225 Difference]: With dead ends: 740 [2021-11-21 01:22:06,269 INFO L226 Difference]: Without dead ends: 381 [2021-11-21 01:22:06,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:22:06,286 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 6 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:22:06,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 1401 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:22:06,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-11-21 01:22:06,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-11-21 01:22:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 225 states have (on average 1.288888888888889) internal successors, (290), 244 states have internal predecessors, (290), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2021-11-21 01:22:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 513 transitions. [2021-11-21 01:22:06,419 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 513 transitions. Word has length 113 [2021-11-21 01:22:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:22:06,421 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 513 transitions. [2021-11-21 01:22:06,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:22:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 513 transitions. [2021-11-21 01:22:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-21 01:22:06,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:06,439 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:06,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:22:06,440 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:22:06,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:06,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1876054946, now seen corresponding path program 1 times [2021-11-21 01:22:06,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:06,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390279469] [2021-11-21 01:22:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:06,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-21 01:22:06,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:06,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390279469] [2021-11-21 01:22:06,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390279469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:22:06,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:22:06,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:22:06,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515180087] [2021-11-21 01:22:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:22:06,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:22:06,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:22:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:22:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:22:06,642 INFO L87 Difference]: Start difference. First operand 381 states and 513 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 01:22:06,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:22:06,826 INFO L93 Difference]: Finished difference Result 739 states and 1011 transitions. [2021-11-21 01:22:06,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:22:06,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 119 [2021-11-21 01:22:06,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:22:06,832 INFO L225 Difference]: With dead ends: 739 [2021-11-21 01:22:06,832 INFO L226 Difference]: Without dead ends: 379 [2021-11-21 01:22:06,836 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 [2021-11-21 01:22:06,838 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 482 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:22:06,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 448 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:22:06,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-11-21 01:22:06,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2021-11-21 01:22:06,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 225 states have (on average 1.2666666666666666) internal successors, (285), 242 states have internal predecessors, (285), 109 states have call successors, (109), 44 states have call predecessors, (109), 44 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2021-11-21 01:22:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 502 transitions. [2021-11-21 01:22:06,922 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 502 transitions. Word has length 119 [2021-11-21 01:22:06,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:22:06,922 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 502 transitions. [2021-11-21 01:22:06,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 01:22:06,923 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 502 transitions. [2021-11-21 01:22:06,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-21 01:22:06,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:06,926 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:06,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:22:06,927 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:22:06,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash 249552391, now seen corresponding path program 1 times [2021-11-21 01:22:06,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:06,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141809587] [2021-11-21 01:22:06,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:06,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-21 01:22:07,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:07,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141809587] [2021-11-21 01:22:07,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141809587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:22:07,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:22:07,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:22:07,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728649182] [2021-11-21 01:22:07,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:22:07,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:22:07,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:22:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:22:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:22:07,067 INFO L87 Difference]: Start difference. First operand 379 states and 502 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:22:07,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:22:07,216 INFO L93 Difference]: Finished difference Result 732 states and 979 transitions. [2021-11-21 01:22:07,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:22:07,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 130 [2021-11-21 01:22:07,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:22:07,223 INFO L225 Difference]: With dead ends: 732 [2021-11-21 01:22:07,224 INFO L226 Difference]: Without dead ends: 378 [2021-11-21 01:22:07,225 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 [2021-11-21 01:22:07,233 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 469 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:22:07,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 467 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:22:07,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-11-21 01:22:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2021-11-21 01:22:07,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 225 states have (on average 1.2577777777777779) internal successors, (283), 241 states have internal predecessors, (283), 108 states have call successors, (108), 44 states have call predecessors, (108), 44 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2021-11-21 01:22:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 498 transitions. [2021-11-21 01:22:07,298 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 498 transitions. Word has length 130 [2021-11-21 01:22:07,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:22:07,299 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 498 transitions. [2021-11-21 01:22:07,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:22:07,299 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 498 transitions. [2021-11-21 01:22:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-21 01:22:07,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:07,311 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:07,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:22:07,312 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:22:07,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:07,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1113950947, now seen corresponding path program 1 times [2021-11-21 01:22:07,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:07,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123161604] [2021-11-21 01:22:07,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:07,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-21 01:22:07,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:07,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123161604] [2021-11-21 01:22:07,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123161604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:22:07,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:22:07,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:22:07,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162879959] [2021-11-21 01:22:07,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:22:07,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:22:07,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:22:07,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:22:07,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:22:07,458 INFO L87 Difference]: Start difference. First operand 378 states and 498 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:22:07,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:22:07,631 INFO L93 Difference]: Finished difference Result 713 states and 938 transitions. [2021-11-21 01:22:07,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:22:07,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 131 [2021-11-21 01:22:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:22:07,636 INFO L225 Difference]: With dead ends: 713 [2021-11-21 01:22:07,636 INFO L226 Difference]: Without dead ends: 375 [2021-11-21 01:22:07,638 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 [2021-11-21 01:22:07,647 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 442 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:22:07,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 443 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:22:07,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-21 01:22:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2021-11-21 01:22:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 225 states have (on average 1.208888888888889) internal successors, (272), 236 states have internal predecessors, (272), 105 states have call successors, (105), 44 states have call predecessors, (105), 44 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-21 01:22:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 481 transitions. [2021-11-21 01:22:07,691 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 481 transitions. Word has length 131 [2021-11-21 01:22:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:22:07,692 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 481 transitions. [2021-11-21 01:22:07,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:22:07,693 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 481 transitions. [2021-11-21 01:22:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-21 01:22:07,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:07,699 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:07,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:22:07,699 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:22:07,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:07,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1663686043, now seen corresponding path program 1 times [2021-11-21 01:22:07,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:07,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060962465] [2021-11-21 01:22:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:07,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:07,872 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-21 01:22:07,873 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:07,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060962465] [2021-11-21 01:22:07,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060962465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:22:07,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:22:07,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:22:07,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361305985] [2021-11-21 01:22:07,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:22:07,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:22:07,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:22:07,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:22:07,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:22:07,877 INFO L87 Difference]: Start difference. First operand 375 states and 481 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:22:08,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:22:08,033 INFO L93 Difference]: Finished difference Result 595 states and 757 transitions. [2021-11-21 01:22:08,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:22:08,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 143 [2021-11-21 01:22:08,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:22:08,040 INFO L225 Difference]: With dead ends: 595 [2021-11-21 01:22:08,040 INFO L226 Difference]: Without dead ends: 377 [2021-11-21 01:22:08,041 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 [2021-11-21 01:22:08,045 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 0 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:22:08,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 855 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:22:08,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-21 01:22:08,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2021-11-21 01:22:08,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 227 states have (on average 1.2070484581497798) internal successors, (274), 238 states have internal predecessors, (274), 105 states have call successors, (105), 44 states have call predecessors, (105), 44 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-21 01:22:08,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 483 transitions. [2021-11-21 01:22:08,085 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 483 transitions. Word has length 143 [2021-11-21 01:22:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:22:08,087 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 483 transitions. [2021-11-21 01:22:08,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:22:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 483 transitions. [2021-11-21 01:22:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-21 01:22:08,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:08,090 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:08,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:22:08,091 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:22:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:08,092 INFO L85 PathProgramCache]: Analyzing trace with hash -589820151, now seen corresponding path program 1 times [2021-11-21 01:22:08,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:08,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390280886] [2021-11-21 01:22:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:08,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-21 01:22:08,228 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390280886] [2021-11-21 01:22:08,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390280886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:22:08,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:22:08,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:22:08,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447921498] [2021-11-21 01:22:08,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:22:08,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:22:08,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:22:08,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:22:08,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:22:08,231 INFO L87 Difference]: Start difference. First operand 377 states and 483 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:22:08,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:22:08,399 INFO L93 Difference]: Finished difference Result 754 states and 990 transitions. [2021-11-21 01:22:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:22:08,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 148 [2021-11-21 01:22:08,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:22:08,405 INFO L225 Difference]: With dead ends: 754 [2021-11-21 01:22:08,406 INFO L226 Difference]: Without dead ends: 444 [2021-11-21 01:22:08,407 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 [2021-11-21 01:22:08,408 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 76 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:22:08,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 871 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:22:08,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-11-21 01:22:08,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 439. [2021-11-21 01:22:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 275 states have (on average 1.250909090909091) internal successors, (344), 286 states have internal predecessors, (344), 119 states have call successors, (119), 44 states have call predecessors, (119), 44 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2021-11-21 01:22:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 581 transitions. [2021-11-21 01:22:08,458 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 581 transitions. Word has length 148 [2021-11-21 01:22:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:22:08,460 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 581 transitions. [2021-11-21 01:22:08,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:22:08,461 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 581 transitions. [2021-11-21 01:22:08,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-21 01:22:08,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:08,464 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:08,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:22:08,465 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:22:08,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:08,465 INFO L85 PathProgramCache]: Analyzing trace with hash 5200269, now seen corresponding path program 1 times [2021-11-21 01:22:08,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:08,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102876756] [2021-11-21 01:22:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:08,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-21 01:22:08,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:08,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102876756] [2021-11-21 01:22:08,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102876756] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:22:08,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977502684] [2021-11-21 01:22:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:08,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:22:08,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:22:08,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:22:08,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ee6b94-be40-4d9b-b46c-9166a06c640a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:22:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:09,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:22:09,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:22:09,401 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-21 01:22:09,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:22:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-21 01:22:09,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977502684] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:22:09,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1919765732] [2021-11-21 01:22:09,765 INFO L159 IcfgInterpreter]: Started Sifa with 122 locations of interest [2021-11-21 01:22:09,765 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:22:09,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:22:09,775 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:22:09,776 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:29:47,206 INFO L197 IcfgInterpreter]: Interpreting procedure setup_rjh__before__Keys with input of size 511 for LOIs [2021-11-21 01:30:11,120 INFO L197 IcfgInterpreter]: Interpreting procedure setup_bob__before__Keys with input of size 517 for LOIs [2021-11-21 01:30:37,173 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 348 for LOIs [2021-11-21 01:31:17,727 INFO L197 IcfgInterpreter]: Interpreting procedure select_one with input of size 463 for LOIs [2021-11-21 01:31:22,694 INFO L197 IcfgInterpreter]: Interpreting procedure setup_chuck__before__Keys with input of size 511 for LOIs [2021-11-21 01:31:48,406 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 441 for LOIs [2021-11-21 01:31:52,969 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 312 for LOIs [2021-11-21 01:31:55,412 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 443 for LOIs [2021-11-21 01:32:00,466 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 345 for LOIs [2021-11-21 01:32:09,419 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__before__Sign with input of size 337 for LOIs [2021-11-21 01:32:17,791 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__before__AddressBook with input of size 335 for LOIs [2021-11-21 01:33:03,543 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__before__Encrypt with input of size 336 for LOIs [2021-11-21 01:33:58,674 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 401 for LOIs [2021-11-21 01:34:05,122 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 306 for LOIs