./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product08.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_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/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_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product08.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/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_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/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 25f377b9a54c9ee2ed75c64ae9c58ce8e9d7938b6493e908dfb7e7f7a3cef80e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:04:25,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:04:25,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:04:25,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:04:25,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:04:25,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:04:25,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:04:25,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:04:25,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:04:25,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:04:25,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:04:25,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:04:25,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:04:25,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:04:25,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:04:25,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:04:25,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:04:25,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:04:25,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:04:25,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:04:25,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:04:25,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:04:25,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:04:25,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:04:25,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:04:25,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:04:25,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:04:25,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:04:25,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:04:25,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:04:25,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:04:25,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:04:25,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:04:25,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:04:25,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:04:25,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:04:25,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:04:25,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:04:25,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:04:25,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:04:25,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:04:25,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:04:25,463 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:04:25,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:04:25,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:04:25,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:04:25,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:04:25,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:04:25,472 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:04:25,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:04:25,473 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:04:25,473 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:04:25,475 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:04:25,475 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:04:25,475 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:04:25,475 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:04:25,476 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:04:25,476 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:04:25,476 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:04:25,476 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:04:25,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:04:25,478 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:04:25,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:04:25,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:04:25,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:04:25,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:04:25,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:04:25,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:04:25,481 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:04:25,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:04:25,482 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:04:25,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:04:25,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:04:25,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:04:25,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:04:25,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:04:25,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:04:25,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:04:25,484 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:04:25,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:04:25,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:04:25,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:04:25,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:04:25,485 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_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f377b9a54c9ee2ed75c64ae9c58ce8e9d7938b6493e908dfb7e7f7a3cef80e [2021-11-23 02:04:25,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:04:25,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:04:25,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:04:25,796 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:04:25,798 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:04:25,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec11_product08.cil.c [2021-11-23 02:04:25,902 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/data/bb9de0fe3/7b8e33af62054953bfdb44c9503c4f2b/FLAGb114c39b9 [2021-11-23 02:04:26,640 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:04:26,641 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/sv-benchmarks/c/product-lines/email_spec11_product08.cil.c [2021-11-23 02:04:26,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/data/bb9de0fe3/7b8e33af62054953bfdb44c9503c4f2b/FLAGb114c39b9 [2021-11-23 02:04:26,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/data/bb9de0fe3/7b8e33af62054953bfdb44c9503c4f2b [2021-11-23 02:04:26,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:04:26,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:04:26,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:04:26,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:04:26,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:04:26,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:26" (1/1) ... [2021-11-23 02:04:26,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e916ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:26, skipping insertion in model container [2021-11-23 02:04:26,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:26" (1/1) ... [2021-11-23 02:04:26,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:04:26,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:04:27,474 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_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/sv-benchmarks/c/product-lines/email_spec11_product08.cil.c[54831,54844] [2021-11-23 02:04:27,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:04:27,499 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:04:27,668 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_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/sv-benchmarks/c/product-lines/email_spec11_product08.cil.c[54831,54844] [2021-11-23 02:04:27,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:04:27,732 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:04:27,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27 WrapperNode [2021-11-23 02:04:27,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:04:27,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:04:27,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:04:27,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:04:27,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,843 INFO L137 Inliner]: procedures = 121, calls = 176, calls flagged for inlining = 46, calls inlined = 40, statements flattened = 735 [2021-11-23 02:04:27,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:04:27,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:04:27,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:04:27,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:04:27,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:04:27,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:04:27,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:04:27,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:04:27,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (1/1) ... [2021-11-23 02:04:27,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:04:27,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:04:27,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:04:27,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:04:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 02:04:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 02:04:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 02:04:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 02:04:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 02:04:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 02:04:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 02:04:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 02:04:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 02:04:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 02:04:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 02:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 02:04:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 02:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 02:04:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 02:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:04:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 02:04:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 02:04:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 02:04:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 02:04:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 02:04:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 02:04:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 02:04:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 02:04:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 02:04:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 02:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 02:04:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 02:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 02:04:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 02:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:04:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:04:28,200 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:04:28,202 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:04:28,856 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:04:29,168 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:04:29,168 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:04:29,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:29 BoogieIcfgContainer [2021-11-23 02:04:29,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:04:29,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:04:29,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:04:29,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:04:29,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:26" (1/3) ... [2021-11-23 02:04:29,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d752a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:29, skipping insertion in model container [2021-11-23 02:04:29,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:27" (2/3) ... [2021-11-23 02:04:29,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d752a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:29, skipping insertion in model container [2021-11-23 02:04:29,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:29" (3/3) ... [2021-11-23 02:04:29,181 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product08.cil.c [2021-11-23 02:04:29,190 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:04:29,191 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:04:29,262 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:04:29,273 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 02:04:29,273 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:04:29,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 76 states have (on average 1.381578947368421) internal successors, (105), 78 states have internal predecessors, (105), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-23 02:04:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 02:04:29,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:29,321 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] [2021-11-23 02:04:29,322 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:04:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:29,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1294955613, now seen corresponding path program 1 times [2021-11-23 02:04:29,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:29,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584542538] [2021-11-23 02:04:29,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:29,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:29,742 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 02:04:29,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:29,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584542538] [2021-11-23 02:04:29,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584542538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:29,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:29,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:04:29,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277418207] [2021-11-23 02:04:29,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:29,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:04:29,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:04:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:04:29,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:04:29,802 INFO L87 Difference]: Start difference. First operand has 126 states, 76 states have (on average 1.381578947368421) internal successors, (105), 78 states have internal predecessors, (105), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:04:29,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:29,938 INFO L93 Difference]: Finished difference Result 169 states and 224 transitions. [2021-11-23 02:04:29,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:04:29,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 54 [2021-11-23 02:04:29,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:29,955 INFO L225 Difference]: With dead ends: 169 [2021-11-23 02:04:29,955 INFO L226 Difference]: Without dead ends: 123 [2021-11-23 02:04:29,960 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 02:04:29,966 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:29,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:04:29,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-23 02:04:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-23 02:04:30,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 74 states have (on average 1.337837837837838) internal successors, (99), 75 states have internal predecessors, (99), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-11-23 02:04:30,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 166 transitions. [2021-11-23 02:04:30,038 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 166 transitions. Word has length 54 [2021-11-23 02:04:30,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:30,040 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 166 transitions. [2021-11-23 02:04:30,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:04:30,040 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 166 transitions. [2021-11-23 02:04:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 02:04:30,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:30,046 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] [2021-11-23 02:04:30,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:04:30,047 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:04:30,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash 523327974, now seen corresponding path program 1 times [2021-11-23 02:04:30,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:30,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077687299] [2021-11-23 02:04:30,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:30,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:30,154 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 02:04:30,154 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:30,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077687299] [2021-11-23 02:04:30,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077687299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:30,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:30,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:04:30,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406863699] [2021-11-23 02:04:30,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:30,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:04:30,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:04:30,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:04:30,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:30,159 INFO L87 Difference]: Start difference. First operand 123 states and 166 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:04:30,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:30,280 INFO L93 Difference]: Finished difference Result 165 states and 212 transitions. [2021-11-23 02:04:30,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:04:30,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 55 [2021-11-23 02:04:30,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:30,293 INFO L225 Difference]: With dead ends: 165 [2021-11-23 02:04:30,293 INFO L226 Difference]: Without dead ends: 125 [2021-11-23 02:04:30,294 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 02:04:30,296 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:30,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 287 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:04:30,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-23 02:04:30,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-11-23 02:04:30,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 77 states have internal predecessors, (101), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-11-23 02:04:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 168 transitions. [2021-11-23 02:04:30,318 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 168 transitions. Word has length 55 [2021-11-23 02:04:30,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:30,319 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 168 transitions. [2021-11-23 02:04:30,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:04:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 168 transitions. [2021-11-23 02:04:30,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 02:04:30,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:30,323 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] [2021-11-23 02:04:30,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:04:30,323 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:04:30,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:30,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1591390782, now seen corresponding path program 1 times [2021-11-23 02:04:30,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:30,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826995789] [2021-11-23 02:04:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:30,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:30,405 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 02:04:30,405 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:30,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826995789] [2021-11-23 02:04:30,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826995789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:30,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:30,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:04:30,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490063748] [2021-11-23 02:04:30,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:30,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:04:30,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:04:30,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:04:30,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:30,408 INFO L87 Difference]: Start difference. First operand 125 states and 168 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:04:30,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:30,506 INFO L93 Difference]: Finished difference Result 280 states and 395 transitions. [2021-11-23 02:04:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:04:30,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2021-11-23 02:04:30,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:30,509 INFO L225 Difference]: With dead ends: 280 [2021-11-23 02:04:30,510 INFO L226 Difference]: Without dead ends: 173 [2021-11-23 02:04:30,511 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 02:04:30,513 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 57 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:30,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 299 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:04:30,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-23 02:04:30,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 168. [2021-11-23 02:04:30,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 108 states have (on average 1.4259259259259258) internal successors, (154), 109 states have internal predecessors, (154), 45 states have call successors, (45), 14 states have call predecessors, (45), 14 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2021-11-23 02:04:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 243 transitions. [2021-11-23 02:04:30,551 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 243 transitions. Word has length 60 [2021-11-23 02:04:30,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:30,553 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 243 transitions. [2021-11-23 02:04:30,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:04:30,554 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 243 transitions. [2021-11-23 02:04:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 02:04:30,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:30,558 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] [2021-11-23 02:04:30,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:04:30,558 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:04:30,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash -794552079, now seen corresponding path program 1 times [2021-11-23 02:04:30,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:30,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771869203] [2021-11-23 02:04:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:30,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:30,684 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 02:04:30,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:30,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771869203] [2021-11-23 02:04:30,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771869203] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:04:30,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549754531] [2021-11-23 02:04:30,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:30,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:04:30,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:04:30,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:04:30,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:04:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:30,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:04:31,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:04:31,196 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 02:04:31,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:04:31,380 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 02:04:31,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549754531] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:04:31,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1941303534] [2021-11-23 02:04:31,408 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2021-11-23 02:04:31,408 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:04:31,413 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:04:31,420 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:04:31,422 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:04:53,977 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:04:54,253 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2021-11-23 02:04:54,518 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 246 for LOIs [2021-11-23 02:04:56,091 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2021-11-23 02:04:56,141 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 248 for LOIs [2021-11-23 02:04:59,449 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 242 for LOIs [2021-11-23 02:04:59,491 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 239 for LOIs [2021-11-23 02:04:59,532 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 469 for LOIs [2021-11-23 02:05:01,084 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:05:17,134 WARN L227 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:05:48,246 WARN L227 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 514 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:06:04,312 WARN L227 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 469 DAG size of output: 248 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:06:32,012 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 549 DAG size of output: 356 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:06:39,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1941303534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:39,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:06:39,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [4, 4, 4] total 49 [2021-11-23 02:06:39,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471853378] [2021-11-23 02:06:39,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:39,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-23 02:06:39,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:39,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-23 02:06:39,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2215, Unknown=0, NotChecked=0, Total=2352 [2021-11-23 02:06:39,684 INFO L87 Difference]: Start difference. First operand 168 states and 243 transitions. Second operand has 44 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 27 states have internal predecessors, (31), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 02:07:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:17,829 INFO L93 Difference]: Finished difference Result 504 states and 799 transitions. [2021-11-23 02:07:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-23 02:07:17,834 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 27 states have internal predecessors, (31), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 61 [2021-11-23 02:07:17,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:17,840 INFO L225 Difference]: With dead ends: 504 [2021-11-23 02:07:17,841 INFO L226 Difference]: Without dead ends: 354 [2021-11-23 02:07:17,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 122.5s TimeCoverageRelationStatistics Valid=198, Invalid=2994, Unknown=0, NotChecked=0, Total=3192 [2021-11-23 02:07:17,846 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 283 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 4969 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 3808 SdHoareTripleChecker+Invalid, 5006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:17,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 3808 Invalid, 5006 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [37 Valid, 4969 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2021-11-23 02:07:17,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-11-23 02:07:17,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 259. [2021-11-23 02:07:17,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 186 states have (on average 1.4838709677419355) internal successors, (276), 188 states have internal predecessors, (276), 52 states have call successors, (52), 21 states have call predecessors, (52), 20 states have return successors, (52), 49 states have call predecessors, (52), 51 states have call successors, (52) [2021-11-23 02:07:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 380 transitions. [2021-11-23 02:07:17,972 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 380 transitions. Word has length 61 [2021-11-23 02:07:17,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:17,973 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 380 transitions. [2021-11-23 02:07:17,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 27 states have internal predecessors, (31), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 02:07:17,974 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 380 transitions. [2021-11-23 02:07:17,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 02:07:17,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:17,978 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] [2021-11-23 02:07:18,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:07:18,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:18,181 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:18,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash 850442994, now seen corresponding path program 1 times [2021-11-23 02:07:18,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:18,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173567240] [2021-11-23 02:07:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:18,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:18,289 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:07:18,290 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:18,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173567240] [2021-11-23 02:07:18,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173567240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:18,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:18,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:07:18,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753598884] [2021-11-23 02:07:18,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:18,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:07:18,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:18,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:07:18,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:18,295 INFO L87 Difference]: Start difference. First operand 259 states and 380 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 02:07:18,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:18,462 INFO L93 Difference]: Finished difference Result 591 states and 894 transitions. [2021-11-23 02:07:18,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:07:18,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2021-11-23 02:07:18,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:18,468 INFO L225 Difference]: With dead ends: 591 [2021-11-23 02:07:18,469 INFO L226 Difference]: Without dead ends: 374 [2021-11-23 02:07:18,470 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 02:07:18,471 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 55 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:18,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 318 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:07:18,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-23 02:07:18,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 367. [2021-11-23 02:07:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 269 states have (on average 1.5092936802973977) internal successors, (406), 271 states have internal predecessors, (406), 77 states have call successors, (77), 21 states have call predecessors, (77), 20 states have return successors, (77), 74 states have call predecessors, (77), 76 states have call successors, (77) [2021-11-23 02:07:18,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 560 transitions. [2021-11-23 02:07:18,592 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 560 transitions. Word has length 66 [2021-11-23 02:07:18,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:18,593 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 560 transitions. [2021-11-23 02:07:18,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 02:07:18,593 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 560 transitions. [2021-11-23 02:07:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 02:07:18,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:18,597 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] [2021-11-23 02:07:18,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:07:18,597 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:18,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:18,598 INFO L85 PathProgramCache]: Analyzing trace with hash 804648446, now seen corresponding path program 1 times [2021-11-23 02:07:18,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:18,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023043308] [2021-11-23 02:07:18,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:18,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:18,657 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 02:07:18,658 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:18,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023043308] [2021-11-23 02:07:18,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023043308] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:07:18,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801107538] [2021-11-23 02:07:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:18,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:18,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:07:18,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:07:18,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:07:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:18,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:07:18,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:07:19,020 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 02:07:19,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:07:19,145 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 02:07:19,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801107538] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:07:19,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1298332077] [2021-11-23 02:07:19,149 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2021-11-23 02:07:19,149 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:07:19,150 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:07:19,150 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:07:19,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:07:54,947 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2021-11-23 02:07:55,238 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2021-11-23 02:07:55,547 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:08:10,891 WARN L227 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:08:45,157 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 514 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:08:56,122 WARN L227 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 583 DAG size of output: 349 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:09:13,980 WARN L227 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 553 DAG size of output: 389 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:09:21,405 WARN L227 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 584 DAG size of output: 390 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:09:21,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1298332077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:09:21,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:09:21,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2021-11-23 02:09:21,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648008246] [2021-11-23 02:09:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:09:21,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-23 02:09:21,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-23 02:09:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2021-11-23 02:09:21,574 INFO L87 Difference]: Start difference. First operand 367 states and 560 transitions. Second operand has 25 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2021-11-23 02:09:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:09:49,708 INFO L93 Difference]: Finished difference Result 714 states and 1131 transitions. [2021-11-23 02:09:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-23 02:09:49,710 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 67 [2021-11-23 02:09:49,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:09:49,714 INFO L225 Difference]: With dead ends: 714 [2021-11-23 02:09:49,714 INFO L226 Difference]: Without dead ends: 474 [2021-11-23 02:09:49,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 173 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 107.3s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 02:09:49,717 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 206 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:09:49,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2319 Invalid, 2162 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-11-23 02:09:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-23 02:09:49,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 423. [2021-11-23 02:09:49,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 322 states have (on average 1.5217391304347827) internal successors, (490), 325 states have internal predecessors, (490), 79 states have call successors, (79), 22 states have call predecessors, (79), 21 states have return successors, (79), 75 states have call predecessors, (79), 78 states have call successors, (79) [2021-11-23 02:09:49,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 648 transitions. [2021-11-23 02:09:49,867 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 648 transitions. Word has length 67 [2021-11-23 02:09:49,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:09:49,868 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 648 transitions. [2021-11-23 02:09:49,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2021-11-23 02:09:49,868 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 648 transitions. [2021-11-23 02:09:49,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 02:09:49,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:09:49,871 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] [2021-11-23 02:09:49,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:09:50,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 02:09:50,086 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:09:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:09:50,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1218102706, now seen corresponding path program 1 times [2021-11-23 02:09:50,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:09:50,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521284162] [2021-11-23 02:09:50,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:50,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:09:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:50,153 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 02:09:50,153 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:09:50,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521284162] [2021-11-23 02:09:50,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521284162] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:09:50,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552607999] [2021-11-23 02:09:50,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:50,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:50,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:09:50,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:09:50,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:09:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:50,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:09:50,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:09:50,528 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 02:09:50,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:09:50,672 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 02:09:50,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552607999] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:09:50,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1980472374] [2021-11-23 02:09:50,681 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2021-11-23 02:09:50,681 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:09:50,682 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:09:50,682 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:09:50,682 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:10:43,727 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:10:43,990 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 418 for LOIs [2021-11-23 02:10:44,242 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2021-11-23 02:10:44,343 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2021-11-23 02:10:44,670 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 415 for LOIs [2021-11-23 02:10:44,925 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 218 for LOIs [2021-11-23 02:10:46,013 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2021-11-23 02:10:46,047 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 218 for LOIs [2021-11-23 02:10:47,554 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2021-11-23 02:10:47,589 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 417 for LOIs [2021-11-23 02:10:48,744 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:11:04,362 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:11:35,385 WARN L227 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 514 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:11:49,732 WARN L227 SmtUtils]: Spent 8.38s on a formula simplification. DAG size of input: 532 DAG size of output: 320 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:12:08,560 WARN L227 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 527 DAG size of output: 310 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:12:26,635 WARN L227 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 530 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:12:39,933 WARN L227 SmtUtils]: Spent 9.56s on a formula simplification. DAG size of input: 417 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:13:03,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1980472374] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:03,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:13:03,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2021-11-23 02:13:03,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844955715] [2021-11-23 02:13:03,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:03,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-23 02:13:03,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:03,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-23 02:13:03,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2021-11-23 02:13:03,446 INFO L87 Difference]: Start difference. First operand 423 states and 648 transitions. Second operand has 48 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 27 states have internal predecessors, (34), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 02:13:30,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:30,793 INFO L93 Difference]: Finished difference Result 816 states and 1271 transitions. [2021-11-23 02:13:30,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-23 02:13:30,794 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 27 states have internal predecessors, (34), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 70 [2021-11-23 02:13:30,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:30,800 INFO L225 Difference]: With dead ends: 816 [2021-11-23 02:13:30,800 INFO L226 Difference]: Without dead ends: 571 [2021-11-23 02:13:30,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 149.3s TimeCoverageRelationStatistics Valid=187, Invalid=3119, Unknown=0, NotChecked=0, Total=3306 [2021-11-23 02:13:30,804 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 293 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 4786 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 4837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 4786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:30,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 3379 Invalid, 4837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 4786 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2021-11-23 02:13:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-11-23 02:13:31,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 500. [2021-11-23 02:13:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 382 states have (on average 1.5) internal successors, (573), 387 states have internal predecessors, (573), 89 states have call successors, (89), 30 states have call predecessors, (89), 28 states have return successors, (89), 82 states have call predecessors, (89), 88 states have call successors, (89) [2021-11-23 02:13:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 751 transitions. [2021-11-23 02:13:31,027 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 751 transitions. Word has length 70 [2021-11-23 02:13:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:31,028 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 751 transitions. [2021-11-23 02:13:31,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 27 states have internal predecessors, (34), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 02:13:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 751 transitions. [2021-11-23 02:13:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 02:13:31,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:31,032 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:31,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 02:13:31,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 02:13:31,248 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:13:31,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:31,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1694676743, now seen corresponding path program 1 times [2021-11-23 02:13:31,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:31,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787847526] [2021-11-23 02:13:31,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:31,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 02:13:31,415 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:31,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787847526] [2021-11-23 02:13:31,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787847526] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:13:31,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873161641] [2021-11-23 02:13:31,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:31,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:13:31,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:13:31,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:13:31,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7d75c3-f1d7-4c9e-b538-6b47eac0d121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:13:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:31,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:13:31,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:13:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:13:31,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:13:31,950 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:13:31,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873161641] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:13:31,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [743890291] [2021-11-23 02:13:31,956 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2021-11-23 02:13:31,956 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:13:31,957 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:13:31,957 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:13:31,957 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:14:00,711 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2021-11-23 02:14:00,971 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 436 for LOIs [2021-11-23 02:14:01,218 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 251 for LOIs [2021-11-23 02:14:16,728 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 447 for LOIs [2021-11-23 02:14:16,985 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 455 for LOIs [2021-11-23 02:14:22,344 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 238 for LOIs [2021-11-23 02:14:22,383 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 235 for LOIs [2021-11-23 02:14:22,430 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 232 for LOIs [2021-11-23 02:14:22,547 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:15:04,443 WARN L227 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 514 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:15:19,324 WARN L227 SmtUtils]: Spent 12.45s on a formula simplification. DAG size of input: 586 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:15:42,776 WARN L227 SmtUtils]: Spent 20.68s on a formula simplification. DAG size of input: 585 DAG size of output: 462 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)