./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_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_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/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_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/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_e6aaf3be-849e-4b4c-802f-955296a6fe29/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 979399ca852926e8ca1f854d8ed303a24eaf5d25d69a2db1d99b3449cc418039 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:22:26,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:22:26,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:22:26,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:22:26,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:22:26,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:22:26,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:22:26,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:22:26,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:22:26,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:22:26,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:22:26,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:22:26,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:22:26,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:22:26,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:22:26,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:22:26,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:22:26,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:22:26,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:22:26,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:22:26,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:22:26,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:22:26,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:22:26,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:22:26,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:22:26,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:22:26,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:22:26,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:22:26,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:22:26,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:22:26,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:22:26,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:22:26,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:22:26,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:22:26,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:22:26,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:22:26,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:22:26,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:22:26,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:22:26,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:22:26,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:22:26,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:22:26,450 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:22:26,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:22:26,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:22:26,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:22:26,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:22:26,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:22:26,463 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:22:26,463 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:22:26,463 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:22:26,464 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:22:26,465 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:22:26,465 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:22:26,465 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:22:26,466 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:22:26,466 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:22:26,466 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:22:26,466 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:22:26,467 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:22:26,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:22:26,468 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:22:26,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:22:26,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:22:26,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:22:26,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:22:26,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:22:26,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:22:26,471 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:22:26,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:22:26,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:22:26,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:22:26,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:22:26,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:22:26,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:22:26,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:22:26,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:22:26,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:22:26,474 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:22:26,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:22:26,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:22:26,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:22:26,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:22:26,475 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_e6aaf3be-849e-4b4c-802f-955296a6fe29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 979399ca852926e8ca1f854d8ed303a24eaf5d25d69a2db1d99b3449cc418039 [2021-11-23 02:22:26,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:22:26,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:22:26,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:22:26,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:22:26,813 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:22:26,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec9_product35.cil.c [2021-11-23 02:22:26,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/data/d2d8a9536/e658678913ed4510917aadde23ed4085/FLAG61bb4c315 [2021-11-23 02:22:27,540 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:22:27,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c [2021-11-23 02:22:27,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/data/d2d8a9536/e658678913ed4510917aadde23ed4085/FLAG61bb4c315 [2021-11-23 02:22:27,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/data/d2d8a9536/e658678913ed4510917aadde23ed4085 [2021-11-23 02:22:27,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:22:27,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:22:27,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:22:27,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:22:27,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:22:27,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:27" (1/1) ... [2021-11-23 02:22:27,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c0dc16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:27, skipping insertion in model container [2021-11-23 02:22:27,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:27" (1/1) ... [2021-11-23 02:22:27,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:22:27,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:22:28,511 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_e6aaf3be-849e-4b4c-802f-955296a6fe29/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c[46615,46628] [2021-11-23 02:22:28,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:22:28,581 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:22:28,700 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_e6aaf3be-849e-4b4c-802f-955296a6fe29/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c[46615,46628] [2021-11-23 02:22:28,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:22:28,761 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:22:28,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28 WrapperNode [2021-11-23 02:22:28,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:22:28,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:22:28,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:22:28,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:22:28,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,881 INFO L137 Inliner]: procedures = 138, calls = 252, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1162 [2021-11-23 02:22:28,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:22:28,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:22:28,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:22:28,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:22:28,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:28,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:22:29,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:22:29,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:22:29,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:22:29,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (1/1) ... [2021-11-23 02:22:29,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:22:29,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:22:29,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:22:29,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:22:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 02:22:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 02:22:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-11-23 02:22:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-11-23 02:22:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 02:22:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 02:22:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-11-23 02:22:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-11-23 02:22:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 02:22:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 02:22:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 02:22:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 02:22:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-11-23 02:22:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-11-23 02:22:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 02:22:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 02:22:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 02:22:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 02:22:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 02:22:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 02:22:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 02:22:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 02:22:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 02:22:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 02:22:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 02:22:29,117 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 02:22:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 02:22:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 02:22:29,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 02:22:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 02:22:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 02:22:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 02:22:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 02:22:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:22:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 02:22:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 02:22:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-11-23 02:22:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-11-23 02:22:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-11-23 02:22:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-11-23 02:22:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 02:22:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 02:22:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 02:22:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 02:22:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 02:22:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 02:22:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-11-23 02:22:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-11-23 02:22:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 02:22:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 02:22:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 02:22:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 02:22:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 02:22:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 02:22:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 02:22:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 02:22:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:22:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 02:22:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 02:22:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-11-23 02:22:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-11-23 02:22:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:22:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:22:29,375 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:22:29,377 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:22:30,326 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:22:30,884 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:22:30,885 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:22:30,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:30 BoogieIcfgContainer [2021-11-23 02:22:30,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:22:30,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:22:30,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:22:30,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:22:30,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:22:27" (1/3) ... [2021-11-23 02:22:30,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85ec8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:30, skipping insertion in model container [2021-11-23 02:22:30,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:28" (2/3) ... [2021-11-23 02:22:30,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85ec8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:30, skipping insertion in model container [2021-11-23 02:22:30,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:30" (3/3) ... [2021-11-23 02:22:30,899 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product35.cil.c [2021-11-23 02:22:30,904 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:22:30,904 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:22:30,969 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:22:30,975 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 02:22:30,975 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:22:31,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2021-11-23 02:22:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 02:22:31,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:22:31,012 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:22:31,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:22:31,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:22:31,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1143338323, now seen corresponding path program 1 times [2021-11-23 02:22:31,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:22:31,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482082186] [2021-11-23 02:22:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:22:31,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:22:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:22:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:22:31,427 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:22:31,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482082186] [2021-11-23 02:22:31,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482082186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:22:31,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:22:31,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:22:31,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137855840] [2021-11-23 02:22:31,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:22:31,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:22:31,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:22:31,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:22:31,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:22:31,468 INFO L87 Difference]: Start difference. First operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:22:31,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:22:31,696 INFO L93 Difference]: Finished difference Result 392 states and 521 transitions. [2021-11-23 02:22:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:22:31,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2021-11-23 02:22:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:22:31,724 INFO L225 Difference]: With dead ends: 392 [2021-11-23 02:22:31,724 INFO L226 Difference]: Without dead ends: 239 [2021-11-23 02:22:31,736 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 02:22:31,743 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:22:31,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:22:31,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-23 02:22:31,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-23 02:22:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 134 states have (on average 1.2611940298507462) internal successors, (169), 138 states have internal predecessors, (169), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2021-11-23 02:22:31,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2021-11-23 02:22:31,839 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 71 [2021-11-23 02:22:31,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:22:31,840 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2021-11-23 02:22:31,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:22:31,841 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2021-11-23 02:22:31,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 02:22:31,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:22:31,847 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:22:31,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:22:31,847 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:22:31,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:22:31,849 INFO L85 PathProgramCache]: Analyzing trace with hash -116378009, now seen corresponding path program 1 times [2021-11-23 02:22:31,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:22:31,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078893548] [2021-11-23 02:22:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:22:31,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:22:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:22:31,986 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:22:31,986 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:22:31,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078893548] [2021-11-23 02:22:31,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078893548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:22:31,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:22:31,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:22:31,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754048656] [2021-11-23 02:22:31,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:22:31,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:22:31,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:22:31,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:22:31,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:22:31,992 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:22:32,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:22:32,190 INFO L93 Difference]: Finished difference Result 388 states and 506 transitions. [2021-11-23 02:22:32,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:22:32,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2021-11-23 02:22:32,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:22:32,200 INFO L225 Difference]: With dead ends: 388 [2021-11-23 02:22:32,201 INFO L226 Difference]: Without dead ends: 241 [2021-11-23 02:22:32,206 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 02:22:32,208 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:22:32,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 541 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:22:32,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-23 02:22:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-11-23 02:22:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 136 states have (on average 1.2573529411764706) internal successors, (171), 140 states have internal predecessors, (171), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2021-11-23 02:22:32,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 320 transitions. [2021-11-23 02:22:32,266 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 320 transitions. Word has length 72 [2021-11-23 02:22:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:22:32,268 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 320 transitions. [2021-11-23 02:22:32,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:22:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 320 transitions. [2021-11-23 02:22:32,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 02:22:32,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:22:32,280 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:22:32,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:22:32,280 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:22:32,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:22:32,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1268191754, now seen corresponding path program 1 times [2021-11-23 02:22:32,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:22:32,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375982416] [2021-11-23 02:22:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:22:32,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:22:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:22:32,483 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:22:32,483 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:22:32,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375982416] [2021-11-23 02:22:32,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375982416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:22:32,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:22:32,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:22:32,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943997344] [2021-11-23 02:22:32,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:22:32,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:22:32,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:22:32,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:22:32,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:22:32,485 INFO L87 Difference]: Start difference. First operand 241 states and 320 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:22:32,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:22:32,660 INFO L93 Difference]: Finished difference Result 517 states and 707 transitions. [2021-11-23 02:22:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:22:32,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2021-11-23 02:22:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:22:32,665 INFO L225 Difference]: With dead ends: 517 [2021-11-23 02:22:32,665 INFO L226 Difference]: Without dead ends: 294 [2021-11-23 02:22:32,666 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 02:22:32,674 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 59 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:22:32,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 563 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:22:32,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-23 02:22:32,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 289. [2021-11-23 02:22:32,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 170 states have (on average 1.3294117647058823) internal successors, (226), 174 states have internal predecessors, (226), 89 states have call successors, (89), 29 states have call predecessors, (89), 29 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-23 02:22:32,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 403 transitions. [2021-11-23 02:22:32,712 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 403 transitions. Word has length 77 [2021-11-23 02:22:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:22:32,714 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 403 transitions. [2021-11-23 02:22:32,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:22:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 403 transitions. [2021-11-23 02:22:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 02:22:32,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:22:32,719 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:22:32,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:22:32,719 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:22:32,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:22:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash -139545106, now seen corresponding path program 1 times [2021-11-23 02:22:32,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:22:32,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57792492] [2021-11-23 02:22:32,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:22:32,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:22:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:22:32,863 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:22:32,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:22:32,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57792492] [2021-11-23 02:22:32,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57792492] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:22:32,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936012701] [2021-11-23 02:22:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:22:32,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:22:32,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:22:32,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:22:32,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:22:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:22:33,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:22:33,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:22:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:22:33,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:22:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:22:33,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936012701] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:22:33,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [739068466] [2021-11-23 02:22:33,663 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-23 02:22:33,664 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:22:33,672 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:22:33,679 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:22:33,680 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:23:03,042 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2021-11-23 02:23:03,313 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:23:03,591 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:23:26,558 WARN L227 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:23:32,205 WARN L227 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 472 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:24:13,051 WARN L227 SmtUtils]: Spent 19.12s on a formula simplification. DAG size of input: 593 DAG size of output: 466 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:24:27,402 WARN L227 SmtUtils]: Spent 12.80s on a formula simplification. DAG size of input: 595 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:24:48,046 WARN L227 SmtUtils]: Spent 19.07s on a formula simplification. DAG size of input: 594 DAG size of output: 467 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:25:08,768 WARN L227 SmtUtils]: Spent 18.99s on a formula simplification. DAG size of input: 592 DAG size of output: 465 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:25:13,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [739068466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:25:13,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:25:13,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2021-11-23 02:25:13,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127394177] [2021-11-23 02:25:13,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:25:13,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-23 02:25:13,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:25:13,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-23 02:25:13,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2021-11-23 02:25:13,219 INFO L87 Difference]: Start difference. First operand 289 states and 403 transitions. Second operand has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2021-11-23 02:25:21,897 WARN L227 SmtUtils]: Spent 7.51s on a formula simplification. DAG size of input: 574 DAG size of output: 414 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:25:31,827 WARN L227 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 595 DAG size of output: 440 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:25:39,613 WARN L227 SmtUtils]: Spent 7.60s on a formula simplification. DAG size of input: 572 DAG size of output: 437 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:25:47,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:25:47,507 INFO L93 Difference]: Finished difference Result 629 states and 913 transitions. [2021-11-23 02:25:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-23 02:25:47,508 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2021-11-23 02:25:47,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:25:47,512 INFO L225 Difference]: With dead ends: 629 [2021-11-23 02:25:47,512 INFO L226 Difference]: Without dead ends: 358 [2021-11-23 02:25:47,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 154.8s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2021-11-23 02:25:47,514 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 242 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 3912 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:25:47,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 3912 Invalid, 1880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2021-11-23 02:25:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-23 02:25:47,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 317. [2021-11-23 02:25:47,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 197 states have (on average 1.3451776649746192) internal successors, (265), 201 states have internal predecessors, (265), 89 states have call successors, (89), 30 states have call predecessors, (89), 30 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-23 02:25:47,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 442 transitions. [2021-11-23 02:25:47,613 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 442 transitions. Word has length 78 [2021-11-23 02:25:47,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:25:47,614 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 442 transitions. [2021-11-23 02:25:47,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2021-11-23 02:25:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 442 transitions. [2021-11-23 02:25:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 02:25:47,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:25:47,616 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:25:47,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:25:47,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:25:47,832 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:25:47,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:25:47,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1087077453, now seen corresponding path program 1 times [2021-11-23 02:25:47,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:25:47,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331421051] [2021-11-23 02:25:47,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:25:47,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:25:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:25:47,909 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 02:25:47,909 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:25:47,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331421051] [2021-11-23 02:25:47,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331421051] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:25:47,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287870169] [2021-11-23 02:25:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:25:47,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:25:47,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:25:47,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:25:47,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:25:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:25:48,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:25:48,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:25:48,346 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 02:25:48,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:25:48,508 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 02:25:48,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287870169] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:25:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810615094] [2021-11-23 02:25:48,512 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2021-11-23 02:25:48,513 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:25:48,514 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:25:48,514 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:25:48,514 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:26:24,022 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:26:24,277 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2021-11-23 02:26:24,527 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:26:41,483 WARN L227 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:27:24,742 WARN L227 SmtUtils]: Spent 15.17s on a formula simplification. DAG size of input: 583 DAG size of output: 408 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:27:45,222 WARN L227 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 584 DAG size of output: 343 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:27:45,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [810615094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:27:45,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:27:45,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2021-11-23 02:27:45,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653956592] [2021-11-23 02:27:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:27:45,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-23 02:27:45,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:27:45,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-23 02:27:45,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2021-11-23 02:27:45,404 INFO L87 Difference]: Start difference. First operand 317 states and 442 transitions. Second operand has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2021-11-23 02:27:56,218 WARN L227 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 475 DAG size of output: 407 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:28:21,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:21,246 INFO L93 Difference]: Finished difference Result 684 states and 992 transitions. [2021-11-23 02:28:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 02:28:21,250 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2021-11-23 02:28:21,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:21,255 INFO L225 Difference]: With dead ends: 684 [2021-11-23 02:28:21,255 INFO L226 Difference]: Without dead ends: 413 [2021-11-23 02:28:21,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 110.0s TimeCoverageRelationStatistics Valid=182, Invalid=1300, Unknown=0, NotChecked=0, Total=1482 [2021-11-23 02:28:21,258 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 148 mSDsluCounter, 4044 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:21,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 4166 Invalid, 2238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-11-23 02:28:21,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-11-23 02:28:21,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 331. [2021-11-23 02:28:21,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 209 states have (on average 1.3492822966507176) internal successors, (282), 213 states have internal predecessors, (282), 90 states have call successors, (90), 31 states have call predecessors, (90), 31 states have return successors, (89), 88 states have call predecessors, (89), 89 states have call successors, (89) [2021-11-23 02:28:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 461 transitions. [2021-11-23 02:28:21,367 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 461 transitions. Word has length 84 [2021-11-23 02:28:21,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:21,367 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 461 transitions. [2021-11-23 02:28:21,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2021-11-23 02:28:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 461 transitions. [2021-11-23 02:28:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-23 02:28:21,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:21,370 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:21,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:28:21,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:28:21,580 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:21,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:21,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1752650253, now seen corresponding path program 1 times [2021-11-23 02:28:21,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:21,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989061856] [2021-11-23 02:28:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:21,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:28:21,663 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:21,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989061856] [2021-11-23 02:28:21,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989061856] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:28:21,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674773153] [2021-11-23 02:28:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:21,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:28:21,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:28:21,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:28:21,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:28:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:21,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:28:21,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:28:22,118 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:28:22,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:28:22,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674773153] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:28:22,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1626521178] [2021-11-23 02:28:22,270 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2021-11-23 02:28:22,271 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:28:22,272 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:28:22,272 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:28:22,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:29:34,359 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:29:34,618 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2021-11-23 02:29:34,893 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 422 for LOIs [2021-11-23 02:29:35,150 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 220 for LOIs [2021-11-23 02:29:35,214 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:29:35,474 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:29:47,217 WARN L227 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:29:52,747 WARN L227 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:29:58,658 WARN L227 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:30:04,323 WARN L227 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 472 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:30:38,524 WARN L227 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 533 DAG size of output: 320 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:30:50,814 WARN L227 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 544 DAG size of output: 389 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:31:02,997 WARN L227 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 525 DAG size of output: 349 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:31:03,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1626521178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:03,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:31:03,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2021-11-23 02:31:03,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623732006] [2021-11-23 02:31:03,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:03,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-23 02:31:03,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:31:03,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-23 02:31:03,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1016, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 02:31:03,003 INFO L87 Difference]: Start difference. First operand 331 states and 461 transitions. Second operand has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2021-11-23 02:31:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:29,243 INFO L93 Difference]: Finished difference Result 705 states and 1024 transitions. [2021-11-23 02:31:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-23 02:31:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) Word has length 87 [2021-11-23 02:31:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:29,247 INFO L225 Difference]: With dead ends: 705 [2021-11-23 02:31:29,247 INFO L226 Difference]: Without dead ends: 434 [2021-11-23 02:31:29,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 104.2s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2021-11-23 02:31:29,249 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 164 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:29,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 4458 Invalid, 3443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 3420 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2021-11-23 02:31:29,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-23 02:31:29,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 367. [2021-11-23 02:31:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 239 states have (on average 1.3556485355648535) internal successors, (324), 243 states have internal predecessors, (324), 93 states have call successors, (93), 34 states have call predecessors, (93), 34 states have return successors, (92), 91 states have call predecessors, (92), 92 states have call successors, (92) [2021-11-23 02:31:29,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 509 transitions. [2021-11-23 02:31:29,391 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 509 transitions. Word has length 87 [2021-11-23 02:31:29,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:29,392 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 509 transitions. [2021-11-23 02:31:29,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2021-11-23 02:31:29,393 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 509 transitions. [2021-11-23 02:31:29,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-23 02:31:29,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:29,395 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:29,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:31:29,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 02:31:29,601 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:31:29,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:29,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1848667408, now seen corresponding path program 1 times [2021-11-23 02:31:29,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:31:29,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118606848] [2021-11-23 02:31:29,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:29,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:29,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:31:29,664 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:31:29,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118606848] [2021-11-23 02:31:29,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118606848] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:31:29,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21294012] [2021-11-23 02:31:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:29,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:31:29,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:31:29,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:31:29,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6aaf3be-849e-4b4c-802f-955296a6fe29/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:31:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:29,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:31:29,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:31:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:31:30,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:31:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:31:30,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21294012] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:31:30,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1247199470] [2021-11-23 02:31:30,325 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2021-11-23 02:31:30,325 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:31:30,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:31:30,328 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:31:30,328 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:32:05,089 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2021-11-23 02:32:05,338 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 484 for LOIs [2021-11-23 02:32:33,143 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 452 for LOIs [2021-11-23 02:32:33,397 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:32:33,660 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 482 for LOIs [2021-11-23 02:32:38,947 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 440 for LOIs [2021-11-23 02:32:39,195 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 282 for LOIs [2021-11-23 02:32:44,723 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2021-11-23 02:32:44,799 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 249 for LOIs [2021-11-23 02:32:44,847 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 454 for LOIs [2021-11-23 02:32:45,361 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 257 for LOIs [2021-11-23 02:32:45,415 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:33:07,245 WARN L227 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:33:12,777 WARN L227 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 472 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:33:53,309 WARN L227 SmtUtils]: Spent 19.18s on a formula simplification. DAG size of input: 604 DAG size of output: 477 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)