./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dc94b11b9bf104a1982bd595975574e7febd0128133afbc196759ccbde82033d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:57:16,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:57:16,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:57:16,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:57:16,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:57:16,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:57:16,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:57:16,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:57:16,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:57:16,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:57:16,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:57:16,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:57:16,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:57:16,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:57:16,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:57:16,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:57:16,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:57:16,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:57:16,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:57:16,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:57:16,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:57:16,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:57:16,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:57:16,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:57:16,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:57:16,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:57:16,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:57:16,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:57:16,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:57:16,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:57:16,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:57:16,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:57:16,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:57:16,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:57:16,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:57:16,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:57:16,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:57:16,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:57:16,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:57:16,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:57:16,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:57:16,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:57:16,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:57:16,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:57:16,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:57:16,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:57:16,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:57:16,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:57:16,496 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:57:16,496 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:57:16,497 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:57:16,497 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:57:16,497 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:57:16,497 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:57:16,497 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:57:16,497 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:57:16,497 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:57:16,498 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:57:16,498 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:57:16,498 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:57:16,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:57:16,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:57:16,500 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:57:16,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:57:16,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:57:16,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:57:16,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:57:16,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:57:16,501 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:57:16,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:57:16,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:57:16,501 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:57:16,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:57:16,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:57:16,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:57:16,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc94b11b9bf104a1982bd595975574e7febd0128133afbc196759ccbde82033d [2022-12-14 06:57:16,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:57:16,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:57:16,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:57:16,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:57:16,705 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:57:16,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c [2022-12-14 06:57:19,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:57:19,506 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:57:19,506 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c [2022-12-14 06:57:19,518 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/data/b9a59f04b/87fd942579194814b608d8fe134b2e38/FLAG944fdd5a2 [2022-12-14 06:57:19,529 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/data/b9a59f04b/87fd942579194814b608d8fe134b2e38 [2022-12-14 06:57:19,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:57:19,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:57:19,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:57:19,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:57:19,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:57:19,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:57:19" (1/1) ... [2022-12-14 06:57:19,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d43e646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:19, skipping insertion in model container [2022-12-14 06:57:19,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:57:19" (1/1) ... [2022-12-14 06:57:19,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:57:19,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:57:19,777 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,845 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c[40745,40758] [2022-12-14 06:57:19,872 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,873 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,876 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,912 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,915 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,916 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,917 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,923 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:57:19,935 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:57:19,962 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,983 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c[40745,40758] [2022-12-14 06:57:19,985 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,986 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:19,988 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:20,000 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:20,002 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:20,002 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:20,003 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:20,006 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:20,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:57:20,029 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:57:20,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20 WrapperNode [2022-12-14 06:57:20,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:57:20,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:57:20,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:57:20,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:57:20,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,114 INFO L138 Inliner]: procedures = 130, calls = 217, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 985 [2022-12-14 06:57:20,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:57:20,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:57:20,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:57:20,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:57:20,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:57:20,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:57:20,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:57:20,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:57:20,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (1/1) ... [2022-12-14 06:57:20,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:57:20,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:57:20,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:57:20,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:57:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 06:57:20,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 06:57:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 06:57:20,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 06:57:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 06:57:20,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 06:57:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 06:57:20,237 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 06:57:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 06:57:20,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 06:57:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 06:57:20,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 06:57:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 06:57:20,237 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 06:57:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 06:57:20,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 06:57:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 06:57:20,238 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 06:57:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 06:57:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 06:57:20,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 06:57:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 06:57:20,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 06:57:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:57:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 06:57:20,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 06:57:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 06:57:20,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 06:57:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 06:57:20,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 06:57:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 06:57:20,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 06:57:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 06:57:20,239 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 06:57:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 06:57:20,239 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 06:57:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 06:57:20,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 06:57:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 06:57:20,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 06:57:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:57:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 06:57:20,240 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 06:57:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 06:57:20,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 06:57:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:57:20,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:57:20,394 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:57:20,396 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:57:20,959 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:57:21,274 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:57:21,274 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:57:21,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:21 BoogieIcfgContainer [2022-12-14 06:57:21,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:57:21,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:57:21,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:57:21,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:57:21,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:57:19" (1/3) ... [2022-12-14 06:57:21,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1703b7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:57:21, skipping insertion in model container [2022-12-14 06:57:21,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:20" (2/3) ... [2022-12-14 06:57:21,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1703b7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:57:21, skipping insertion in model container [2022-12-14 06:57:21,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:21" (3/3) ... [2022-12-14 06:57:21,282 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product23.cil.c [2022-12-14 06:57:21,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:57:21,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:57:21,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:57:21,358 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b7526d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:57:21,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:57:21,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 99 states have (on average 1.3333333333333333) internal successors, (132), 102 states have internal predecessors, (132), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-12-14 06:57:21,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 06:57:21,375 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:21,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:21,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:21,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:21,382 INFO L85 PathProgramCache]: Analyzing trace with hash -260949344, now seen corresponding path program 1 times [2022-12-14 06:57:21,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:21,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110648987] [2022-12-14 06:57:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:21,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:57:21,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:21,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110648987] [2022-12-14 06:57:21,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110648987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:21,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:21,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:57:21,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013819713] [2022-12-14 06:57:21,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:21,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:57:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:21,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:57:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:57:21,693 INFO L87 Difference]: Start difference. First operand has 172 states, 99 states have (on average 1.3333333333333333) internal successors, (132), 102 states have internal predecessors, (132), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:57:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:21,792 INFO L93 Difference]: Finished difference Result 252 states and 335 transitions. [2022-12-14 06:57:21,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:57:21,794 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-12-14 06:57:21,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:21,801 INFO L225 Difference]: With dead ends: 252 [2022-12-14 06:57:21,801 INFO L226 Difference]: Without dead ends: 169 [2022-12-14 06:57:21,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:57:21,806 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:21,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:57:21,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-12-14 06:57:21,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-12-14 06:57:21,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 99 states have internal predecessors, (126), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 06:57:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 225 transitions. [2022-12-14 06:57:21,844 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 225 transitions. Word has length 67 [2022-12-14 06:57:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:21,845 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 225 transitions. [2022-12-14 06:57:21,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:57:21,846 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 225 transitions. [2022-12-14 06:57:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 06:57:21,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:21,848 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:21,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:57:21,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:21,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:21,849 INFO L85 PathProgramCache]: Analyzing trace with hash 750717928, now seen corresponding path program 1 times [2022-12-14 06:57:21,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:21,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211305255] [2022-12-14 06:57:21,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:21,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:57:21,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:21,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211305255] [2022-12-14 06:57:21,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211305255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:21,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:21,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:57:21,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890401462] [2022-12-14 06:57:21,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:21,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:57:21,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:21,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:57:21,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:57:21,974 INFO L87 Difference]: Start difference. First operand 169 states and 225 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:57:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:22,072 INFO L93 Difference]: Finished difference Result 248 states and 320 transitions. [2022-12-14 06:57:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:57:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2022-12-14 06:57:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:22,074 INFO L225 Difference]: With dead ends: 248 [2022-12-14 06:57:22,074 INFO L226 Difference]: Without dead ends: 171 [2022-12-14 06:57:22,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:57:22,076 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:22,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:57:22,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-12-14 06:57:22,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-12-14 06:57:22,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 99 states have (on average 1.292929292929293) internal successors, (128), 101 states have internal predecessors, (128), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 06:57:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 227 transitions. [2022-12-14 06:57:22,096 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 227 transitions. Word has length 68 [2022-12-14 06:57:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:22,096 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 227 transitions. [2022-12-14 06:57:22,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:57:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 227 transitions. [2022-12-14 06:57:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 06:57:22,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:22,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:22,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:57:22,102 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:22,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:22,103 INFO L85 PathProgramCache]: Analyzing trace with hash -498594278, now seen corresponding path program 1 times [2022-12-14 06:57:22,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:22,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204820974] [2022-12-14 06:57:22,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:22,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:22,244 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:57:22,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:22,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204820974] [2022-12-14 06:57:22,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204820974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:22,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:22,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:57:22,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788046184] [2022-12-14 06:57:22,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:22,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:57:22,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:22,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:57:22,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:57:22,248 INFO L87 Difference]: Start difference. First operand 171 states and 227 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:57:22,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:22,363 INFO L93 Difference]: Finished difference Result 377 states and 521 transitions. [2022-12-14 06:57:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:57:22,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-12-14 06:57:22,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:22,366 INFO L225 Difference]: With dead ends: 377 [2022-12-14 06:57:22,366 INFO L226 Difference]: Without dead ends: 224 [2022-12-14 06:57:22,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:57:22,369 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 59 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:22,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 394 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:57:22,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-12-14 06:57:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 219. [2022-12-14 06:57:22,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 133 states have (on average 1.3759398496240602) internal successors, (183), 135 states have internal predecessors, (183), 64 states have call successors, (64), 21 states have call predecessors, (64), 21 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 06:57:22,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 310 transitions. [2022-12-14 06:57:22,391 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 310 transitions. Word has length 73 [2022-12-14 06:57:22,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:22,392 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 310 transitions. [2022-12-14 06:57:22,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:57:22,392 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 310 transitions. [2022-12-14 06:57:22,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 06:57:22,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:22,396 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:22,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:57:22,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:57:22,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:22,397 INFO L85 PathProgramCache]: Analyzing trace with hash 95576048, now seen corresponding path program 1 times [2022-12-14 06:57:22,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:22,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852977626] [2022-12-14 06:57:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:22,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:57:22,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:22,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852977626] [2022-12-14 06:57:22,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852977626] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:57:22,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677555833] [2022-12-14 06:57:22,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:22,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:57:22,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:57:22,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:57:22,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:57:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:22,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:57:22,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:57:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:57:22,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:57:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 06:57:22,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677555833] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:57:22,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [751377176] [2022-12-14 06:57:22,914 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 06:57:22,914 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:57:22,918 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:57:22,923 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:57:22,924 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:58:01,505 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 06:58:01,806 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 06:58:02,108 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-12-14 06:58:03,820 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 06:58:03,858 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-12-14 06:58:07,085 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 269 for LOIs [2022-12-14 06:58:12,118 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 435 for LOIs [2022-12-14 06:58:12,358 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-12-14 06:58:12,402 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 06:58:17,501 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 242 for LOIs [2022-12-14 06:58:17,543 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:59:52,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [751377176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:59:52,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:59:52,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [4, 4, 4] total 54 [2022-12-14 06:59:52,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401100043] [2022-12-14 06:59:52,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:59:52,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-14 06:59:52,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:59:52,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-14 06:59:52,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=2721, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 06:59:52,651 INFO L87 Difference]: Start difference. First operand 219 states and 310 transitions. Second operand has 49 states, 32 states have (on average 1.1875) internal successors, (38), 29 states have internal predecessors, (38), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 07:00:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:36,118 INFO L93 Difference]: Finished difference Result 632 states and 980 transitions. [2022-12-14 07:00:36,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-14 07:00:36,119 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 32 states have (on average 1.1875) internal successors, (38), 29 states have internal predecessors, (38), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 74 [2022-12-14 07:00:36,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:36,121 INFO L225 Difference]: With dead ends: 632 [2022-12-14 07:00:36,121 INFO L226 Difference]: Without dead ends: 431 [2022-12-14 07:00:36,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 117.3s TimeCoverageRelationStatistics Valid=225, Invalid=3935, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 07:00:36,123 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 389 mSDsluCounter, 5051 mSDsCounter, 0 mSdLazyCounter, 7162 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 5311 SdHoareTripleChecker+Invalid, 7200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 7162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:36,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 5311 Invalid, 7200 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [38 Valid, 7162 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2022-12-14 07:00:36,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-12-14 07:00:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 320. [2022-12-14 07:00:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 216 states have (on average 1.4351851851851851) internal successors, (310), 219 states have internal predecessors, (310), 75 states have call successors, (75), 30 states have call predecessors, (75), 28 states have return successors, (75), 70 states have call predecessors, (75), 74 states have call successors, (75) [2022-12-14 07:00:36,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 460 transitions. [2022-12-14 07:00:36,254 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 460 transitions. Word has length 74 [2022-12-14 07:00:36,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:36,254 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 460 transitions. [2022-12-14 07:00:36,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 32 states have (on average 1.1875) internal successors, (38), 29 states have internal predecessors, (38), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 07:00:36,255 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 460 transitions. [2022-12-14 07:00:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 07:00:36,256 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:36,256 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:00:36,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:00:36,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:00:36,458 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:00:36,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:36,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1696692047, now seen corresponding path program 1 times [2022-12-14 07:00:36,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:36,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151469778] [2022-12-14 07:00:36,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:36,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:00:36,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:36,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151469778] [2022-12-14 07:00:36,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151469778] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:00:36,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577663157] [2022-12-14 07:00:36,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:36,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:00:36,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:00:36,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:00:36,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:00:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:36,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:00:36,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:00:36,781 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:00:36,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:00:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:00:36,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577663157] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:00:36,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1727847832] [2022-12-14 07:00:36,816 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 07:00:36,816 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:00:36,817 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:00:36,817 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:00:36,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:01:08,200 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 07:01:08,510 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:01:08,802 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-12-14 07:01:10,460 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 07:01:10,499 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2022-12-14 07:01:13,887 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 269 for LOIs [2022-12-14 07:01:29,066 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-12-14 07:01:29,101 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-12-14 07:01:29,144 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 07:01:31,028 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 435 for LOIs [2022-12-14 07:01:31,280 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 262 for LOIs [2022-12-14 07:01:31,332 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:03:18,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1727847832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:18,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:03:18,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-12-14 07:03:18,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120042652] [2022-12-14 07:03:18,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:18,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-14 07:03:18,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:18,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-14 07:03:18,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=3708, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 07:03:18,075 INFO L87 Difference]: Start difference. First operand 320 states and 460 transitions. Second operand has 58 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 35 states have internal predecessors, (41), 17 states have call successors, (17), 11 states have call predecessors, (17), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 07:04:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:11,188 INFO L93 Difference]: Finished difference Result 448 states and 666 transitions. [2022-12-14 07:04:11,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-14 07:04:11,189 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 35 states have internal predecessors, (41), 17 states have call successors, (17), 11 states have call predecessors, (17), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 79 [2022-12-14 07:04:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:11,191 INFO L225 Difference]: With dead ends: 448 [2022-12-14 07:04:11,191 INFO L226 Difference]: Without dead ends: 446 [2022-12-14 07:04:11,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 133.6s TimeCoverageRelationStatistics Valid=304, Invalid=5396, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 07:04:11,193 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 313 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 9014 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 6092 SdHoareTripleChecker+Invalid, 9031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 9014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:11,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 6092 Invalid, 9031 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [17 Valid, 9014 Invalid, 0 Unknown, 0 Unchecked, 25.5s Time] [2022-12-14 07:04:11,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-12-14 07:04:11,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 329. [2022-12-14 07:04:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 222 states have (on average 1.427927927927928) internal successors, (317), 225 states have internal predecessors, (317), 76 states have call successors, (76), 32 states have call predecessors, (76), 30 states have return successors, (76), 71 states have call predecessors, (76), 75 states have call successors, (76) [2022-12-14 07:04:11,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 469 transitions. [2022-12-14 07:04:11,377 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 469 transitions. Word has length 79 [2022-12-14 07:04:11,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:11,377 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 469 transitions. [2022-12-14 07:04:11,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 35 states have internal predecessors, (41), 17 states have call successors, (17), 11 states have call predecessors, (17), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 07:04:11,377 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 469 transitions. [2022-12-14 07:04:11,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 07:04:11,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:11,379 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:11,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:04:11,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:11,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:04:11,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:11,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1834409319, now seen corresponding path program 1 times [2022-12-14 07:04:11,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:11,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072052010] [2022-12-14 07:04:11,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:11,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:04:11,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:11,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072052010] [2022-12-14 07:04:11,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072052010] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:11,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:11,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:04:11,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573231589] [2022-12-14 07:04:11,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:11,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:11,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:11,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:11,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:11,672 INFO L87 Difference]: Start difference. First operand 329 states and 469 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:04:12,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:12,107 INFO L93 Difference]: Finished difference Result 745 states and 1094 transitions. [2022-12-14 07:04:12,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:12,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 79 [2022-12-14 07:04:12,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:12,111 INFO L225 Difference]: With dead ends: 745 [2022-12-14 07:04:12,111 INFO L226 Difference]: Without dead ends: 454 [2022-12-14 07:04:12,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:12,113 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 57 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:12,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 415 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:12,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-12-14 07:04:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 447. [2022-12-14 07:04:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 309 states have (on average 1.4595469255663431) internal successors, (451), 312 states have internal predecessors, (451), 107 states have call successors, (107), 32 states have call predecessors, (107), 30 states have return successors, (107), 102 states have call predecessors, (107), 106 states have call successors, (107) [2022-12-14 07:04:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 665 transitions. [2022-12-14 07:04:12,361 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 665 transitions. Word has length 79 [2022-12-14 07:04:12,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:12,361 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 665 transitions. [2022-12-14 07:04:12,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:04:12,361 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 665 transitions. [2022-12-14 07:04:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 07:04:12,363 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:12,363 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:12,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:04:12,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:04:12,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:12,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1236819648, now seen corresponding path program 1 times [2022-12-14 07:04:12,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:12,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048348254] [2022-12-14 07:04:12,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:12,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:04:12,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:12,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048348254] [2022-12-14 07:04:12,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048348254] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:04:12,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279886659] [2022-12-14 07:04:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:12,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:12,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:12,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:12,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:04:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:12,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:04:12,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:04:12,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:04:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:04:12,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279886659] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:04:12,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1036965787] [2022-12-14 07:04:12,700 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 07:04:12,700 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:04:12,700 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:04:12,700 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:04:12,701 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:04:48,223 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 07:04:48,520 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 07:04:48,826 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:05:29,582 WARN L233 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 588 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:05:35,827 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 588 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:05:49,463 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 570 DAG size of output: 376 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:05:55,387 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 568 DAG size of output: 374 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:05:57,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1036965787] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:57,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:05:57,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 07:05:57,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930334939] [2022-12-14 07:05:57,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:57,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 07:05:57,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:57,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 07:05:57,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 07:05:57,560 INFO L87 Difference]: Start difference. First operand 447 states and 665 transitions. Second operand has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 07:06:08,471 WARN L233 SmtUtils]: Spent 9.88s on a formula simplification. DAG size of input: 566 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:06:30,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:06:30,312 INFO L93 Difference]: Finished difference Result 846 states and 1301 transitions. [2022-12-14 07:06:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 07:06:30,313 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 80 [2022-12-14 07:06:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:06:30,315 INFO L225 Difference]: With dead ends: 846 [2022-12-14 07:06:30,316 INFO L226 Difference]: Without dead ends: 545 [2022-12-14 07:06:30,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 93.5s TimeCoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 07:06:30,317 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 284 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:06:30,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 3043 Invalid, 2246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 07:06:30,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-12-14 07:06:30,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 475. [2022-12-14 07:06:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 334 states have (on average 1.4580838323353293) internal successors, (487), 338 states have internal predecessors, (487), 109 states have call successors, (109), 33 states have call predecessors, (109), 31 states have return successors, (109), 103 states have call predecessors, (109), 108 states have call successors, (109) [2022-12-14 07:06:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 705 transitions. [2022-12-14 07:06:30,652 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 705 transitions. Word has length 80 [2022-12-14 07:06:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:06:30,652 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 705 transitions. [2022-12-14 07:06:30,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 07:06:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 705 transitions. [2022-12-14 07:06:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 07:06:30,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:06:30,653 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:06:30,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:06:30,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:06:30,854 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:06:30,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:06:30,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1405005449, now seen corresponding path program 1 times [2022-12-14 07:06:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:06:30,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271690822] [2022-12-14 07:06:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:06:30,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:06:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:06:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:06:30,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:06:30,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271690822] [2022-12-14 07:06:30,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271690822] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:06:30,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132365810] [2022-12-14 07:06:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:06:30,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:06:30,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:06:30,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:06:30,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:06:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:06:31,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:06:31,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:06:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:06:31,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:06:31,311 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:06:31,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132365810] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:06:31,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1004352462] [2022-12-14 07:06:31,315 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 07:06:31,315 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:06:31,315 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:06:31,316 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:06:31,316 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:08:11,333 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 07:08:11,631 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 434 for LOIs [2022-12-14 07:08:11,955 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 453 for LOIs [2022-12-14 07:08:12,294 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 233 for LOIs [2022-12-14 07:08:12,360 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:08:12,760 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:09:07,308 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 569 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:12,981 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 565 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:31,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1004352462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:31,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:09:31,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 07:09:31,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951567986] [2022-12-14 07:09:31,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:31,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 07:09:31,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:31,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 07:09:31,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 07:09:31,003 INFO L87 Difference]: Start difference. First operand 475 states and 705 transitions. Second operand has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 07:09:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:49,832 INFO L93 Difference]: Finished difference Result 902 states and 1388 transitions. [2022-12-14 07:09:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 07:09:49,833 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 83 [2022-12-14 07:09:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:49,836 INFO L225 Difference]: With dead ends: 902 [2022-12-14 07:09:49,836 INFO L226 Difference]: Without dead ends: 601 [2022-12-14 07:09:49,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 85.6s TimeCoverageRelationStatistics Valid=150, Invalid=1256, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 07:09:49,838 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 139 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 3485 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 3496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:49,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 3618 Invalid, 3496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3485 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-12-14 07:09:49,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-12-14 07:09:50,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 534. [2022-12-14 07:09:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 386 states have (on average 1.4663212435233162) internal successors, (566), 391 states have internal predecessors, (566), 113 states have call successors, (113), 36 states have call predecessors, (113), 34 states have return successors, (113), 106 states have call predecessors, (113), 112 states have call successors, (113) [2022-12-14 07:09:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 792 transitions. [2022-12-14 07:09:50,218 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 792 transitions. Word has length 83 [2022-12-14 07:09:50,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:50,218 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 792 transitions. [2022-12-14 07:09:50,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 07:09:50,218 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 792 transitions. [2022-12-14 07:09:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 07:09:50,220 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:50,220 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:50,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:09:50,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:09:50,421 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:09:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:50,421 INFO L85 PathProgramCache]: Analyzing trace with hash 855990464, now seen corresponding path program 1 times [2022-12-14 07:09:50,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:50,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309468310] [2022-12-14 07:09:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:50,510 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:09:50,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:50,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309468310] [2022-12-14 07:09:50,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309468310] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:09:50,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517689498] [2022-12-14 07:09:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:50,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:09:50,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:09:50,511 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:09:50,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1672356-c8a7-4b48-bbf6-b97649c823c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:09:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:50,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:09:50,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:09:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:09:50,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:09:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:09:50,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517689498] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:09:50,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1845384901] [2022-12-14 07:09:50,771 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 07:09:50,771 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:09:50,771 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:09:50,772 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:09:50,772 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:10:37,517 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 07:10:37,817 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 469 for LOIs [2022-12-14 07:11:06,888 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 447 for LOIs [2022-12-14 07:11:07,185 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:11:07,489 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 467 for LOIs [2022-12-14 07:11:22,469 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 269 for LOIs