./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/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_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/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_83320872-5c8f-4e2e-b78e-2d1725740384/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 78f09f881cef26d11456f7baabcb58a727aa2f4d67cef56365b42a1e169c7203 --- 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 06:02:44,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:02:44,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:02:44,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:02:44,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:02:44,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:02:44,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:02:44,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:02:44,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:02:44,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:02:44,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:02:44,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:02:44,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:02:44,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:02:44,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:02:44,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:02:44,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:02:44,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:02:44,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:02:44,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:02:44,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:02:44,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:02:44,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:02:44,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:02:44,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:02:44,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:02:44,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:02:44,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:02:44,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:02:44,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:02:44,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:02:44,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:02:44,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:02:44,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:02:44,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:02:44,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:02:44,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:02:44,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:02:44,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:02:44,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:02:44,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:02:44,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:02:44,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:02:44,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:02:44,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:02:44,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:02:44,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:02:44,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:02:44,500 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:02:44,501 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:02:44,501 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:02:44,501 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:02:44,501 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:02:44,501 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:02:44,501 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:02:44,501 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:02:44,502 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:02:44,502 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:02:44,502 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:02:44,502 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:02:44,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:02:44,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:02:44,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:02:44,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:02:44,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:02:44,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:02:44,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:02:44,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:02:44,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:02:44,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:02:44,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:02:44,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:02:44,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:02:44,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:02:44,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:02:44,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:02:44,505 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:02:44,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:02:44,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:02:44,506 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:02:44,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:02:44,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:02:44,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:02:44,506 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_83320872-5c8f-4e2e-b78e-2d1725740384/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78f09f881cef26d11456f7baabcb58a727aa2f4d67cef56365b42a1e169c7203 [2022-12-14 06:02:44,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:02:44,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:02:44,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:02:44,714 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:02:44,714 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:02:44,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c [2022-12-14 06:02:47,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:02:47,501 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:02:47,501 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c [2022-12-14 06:02:47,517 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/data/88e709180/5707ab36f8784e27b16a6e6c063c7135/FLAG8f03ae0f7 [2022-12-14 06:02:47,792 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/data/88e709180/5707ab36f8784e27b16a6e6c063c7135 [2022-12-14 06:02:47,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:02:47,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:02:47,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:02:47,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:02:47,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:02:47,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:02:47" (1/1) ... [2022-12-14 06:02:47,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f727e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:47, skipping insertion in model container [2022-12-14 06:02:47,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:02:47" (1/1) ... [2022-12-14 06:02:47,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:02:47,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:02:48,050 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,054 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,060 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,288 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,292 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,301 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,302 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,308 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,310 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,311 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_83320872-5c8f-4e2e-b78e-2d1725740384/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c[65706,65719] [2022-12-14 06:02:48,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:02:48,327 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:02:48,338 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,339 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,342 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,403 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,404 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,409 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,410 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,412 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,413 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:02:48,414 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_83320872-5c8f-4e2e-b78e-2d1725740384/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c[65706,65719] [2022-12-14 06:02:48,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:02:48,438 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:02:48,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48 WrapperNode [2022-12-14 06:02:48,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:02:48,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:02:48,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:02:48,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:02:48,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,514 INFO L138 Inliner]: procedures = 135, calls = 237, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1102 [2022-12-14 06:02:48,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:02:48,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:02:48,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:02:48,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:02:48,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,560 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:02:48,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:02:48,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:02:48,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:02:48,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (1/1) ... [2022-12-14 06:02:48,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:02:48,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:02:48,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:02:48,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:02:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 06:02:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 06:02:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 06:02:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 06:02:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 06:02:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 06:02:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 06:02:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 06:02:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 06:02:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 06:02:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 06:02:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 06:02:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 06:02:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 06:02:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 06:02:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 06:02:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 06:02:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 06:02:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 06:02:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 06:02:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 06:02:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 06:02:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 06:02:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 06:02:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 06:02:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 06:02:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 06:02:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:02:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 06:02:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 06:02:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 06:02:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 06:02:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 06:02:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 06:02:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-12-14 06:02:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-12-14 06:02:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 06:02:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 06:02:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 06:02:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 06:02:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 06:02:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 06:02:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 06:02:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 06:02:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 06:02:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 06:02:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 06:02:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 06:02:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 06:02:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 06:02:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:02:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 06:02:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 06:02:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:02:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:02:48,835 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:02:48,837 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:02:49,422 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:02:49,697 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:02:49,697 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:02:49,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:02:49 BoogieIcfgContainer [2022-12-14 06:02:49,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:02:49,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:02:49,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:02:49,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:02:49,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:02:47" (1/3) ... [2022-12-14 06:02:49,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c702eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:02:49, skipping insertion in model container [2022-12-14 06:02:49,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:02:48" (2/3) ... [2022-12-14 06:02:49,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c702eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:02:49, skipping insertion in model container [2022-12-14 06:02:49,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:02:49" (3/3) ... [2022-12-14 06:02:49,709 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product33.cil.c [2022-12-14 06:02:49,728 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:02:49,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:02:49,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:02:49,785 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;@4ac30962, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:02:49,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:02:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 127 states have (on average 1.3070866141732282) internal successors, (166), 133 states have internal predecessors, (166), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2022-12-14 06:02:49,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 06:02:49,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:49,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:49,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:02:49,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:49,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2009438416, now seen corresponding path program 1 times [2022-12-14 06:02:49,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:02:49,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009132247] [2022-12-14 06:02:49,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:49,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:02:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:50,028 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:02:50,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:02:50,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009132247] [2022-12-14 06:02:50,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009132247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:50,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:50,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:02:50,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025661237] [2022-12-14 06:02:50,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:50,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:02:50,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:02:50,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:02:50,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:02:50,062 INFO L87 Difference]: Start difference. First operand has 222 states, 127 states have (on average 1.3070866141732282) internal successors, (166), 133 states have internal predecessors, (166), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:02:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:50,174 INFO L93 Difference]: Finished difference Result 360 states and 482 transitions. [2022-12-14 06:02:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:02:50,176 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 83 [2022-12-14 06:02:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:50,187 INFO L225 Difference]: With dead ends: 360 [2022-12-14 06:02:50,187 INFO L226 Difference]: Without dead ends: 218 [2022-12-14 06:02:50,192 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 06:02:50,195 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:50,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 256 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:02:50,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-12-14 06:02:50,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-12-14 06:02:50,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 125 states have (on average 1.28) internal successors, (160), 129 states have internal predecessors, (160), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 06:02:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 293 transitions. [2022-12-14 06:02:50,254 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 293 transitions. Word has length 83 [2022-12-14 06:02:50,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:50,255 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 293 transitions. [2022-12-14 06:02:50,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:02:50,256 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 293 transitions. [2022-12-14 06:02:50,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:02:50,259 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:50,259 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:50,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:02:50,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:02:50,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:50,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1350622154, now seen corresponding path program 1 times [2022-12-14 06:02:50,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:02:50,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880593958] [2022-12-14 06:02:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:50,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:02:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:02:50,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:02:50,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880593958] [2022-12-14 06:02:50,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880593958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:50,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:50,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:02:50,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874796831] [2022-12-14 06:02:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:50,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:50,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:02:50,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:50,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:50,449 INFO L87 Difference]: Start difference. First operand 218 states and 293 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:02:50,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:50,552 INFO L93 Difference]: Finished difference Result 355 states and 466 transitions. [2022-12-14 06:02:50,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:50,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 84 [2022-12-14 06:02:50,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:50,554 INFO L225 Difference]: With dead ends: 355 [2022-12-14 06:02:50,554 INFO L226 Difference]: Without dead ends: 220 [2022-12-14 06:02:50,555 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 06:02:50,556 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:50,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:02:50,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-12-14 06:02:50,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-12-14 06:02:50,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 127 states have (on average 1.2755905511811023) internal successors, (162), 131 states have internal predecessors, (162), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 06:02:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 295 transitions. [2022-12-14 06:02:50,569 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 295 transitions. Word has length 84 [2022-12-14 06:02:50,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:50,569 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 295 transitions. [2022-12-14 06:02:50,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:02:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 295 transitions. [2022-12-14 06:02:50,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 06:02:50,571 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:50,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:50,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:02:50,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:02:50,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:50,572 INFO L85 PathProgramCache]: Analyzing trace with hash -242759274, now seen corresponding path program 1 times [2022-12-14 06:02:50,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:02:50,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723585436] [2022-12-14 06:02:50,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:50,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:02:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:02:50,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:02:50,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723585436] [2022-12-14 06:02:50,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723585436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:50,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:50,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:02:50,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75668082] [2022-12-14 06:02:50,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:50,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:02:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:50,646 INFO L87 Difference]: Start difference. First operand 220 states and 295 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:02:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:50,738 INFO L93 Difference]: Finished difference Result 470 states and 649 transitions. [2022-12-14 06:02:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:50,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2022-12-14 06:02:50,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:50,740 INFO L225 Difference]: With dead ends: 470 [2022-12-14 06:02:50,740 INFO L226 Difference]: Without dead ends: 268 [2022-12-14 06:02:50,741 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 06:02:50,742 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 57 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:50,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 517 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:02:50,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-12-14 06:02:50,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 263. [2022-12-14 06:02:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 163 states have internal predecessors, (215), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 06:02:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 370 transitions. [2022-12-14 06:02:50,756 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 370 transitions. Word has length 89 [2022-12-14 06:02:50,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:50,757 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 370 transitions. [2022-12-14 06:02:50,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:02:50,757 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 370 transitions. [2022-12-14 06:02:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 06:02:50,759 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:50,759 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:50,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:02:50,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:02:50,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:50,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1951288525, now seen corresponding path program 1 times [2022-12-14 06:02:50,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:02:50,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032266209] [2022-12-14 06:02:50,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:50,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:02:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:02:50,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:02:50,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032266209] [2022-12-14 06:02:50,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032266209] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:02:50,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83435011] [2022-12-14 06:02:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:50,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:02:50,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:02:50,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:02:50,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:02:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:51,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:02:51,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:02:51,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:02:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:02:51,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83435011] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:02:51,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1467252344] [2022-12-14 06:02:51,286 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 06:02:51,286 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:02:51,290 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:02:51,296 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:02:51,296 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:03:21,279 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 06:03:21,565 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:03:21,853 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:04:04,329 WARN L233 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 592 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:04:09,976 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 594 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:04:15,863 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 593 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:04:22,120 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 591 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:04:26,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1467252344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:26,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:04:26,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 06:04:26,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387490464] [2022-12-14 06:04:26,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:26,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 06:04:26,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:04:26,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 06:04:26,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:04:26,712 INFO L87 Difference]: Start difference. First operand 263 states and 370 transitions. Second operand has 21 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2022-12-14 06:04:33,120 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 534 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:04:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:48,230 INFO L93 Difference]: Finished difference Result 609 states and 908 transitions. [2022-12-14 06:04:48,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 06:04:48,231 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 90 [2022-12-14 06:04:48,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:48,234 INFO L225 Difference]: With dead ends: 609 [2022-12-14 06:04:48,234 INFO L226 Difference]: Without dead ends: 364 [2022-12-14 06:04:48,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 78.9s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 06:04:48,236 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 191 mSDsluCounter, 3568 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:48,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 3841 Invalid, 1944 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 06:04:48,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-12-14 06:04:48,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 291. [2022-12-14 06:04:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 186 states have (on average 1.3655913978494623) internal successors, (254), 190 states have internal predecessors, (254), 79 states have call successors, (79), 26 states have call predecessors, (79), 25 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 06:04:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 409 transitions. [2022-12-14 06:04:48,368 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 409 transitions. Word has length 90 [2022-12-14 06:04:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:48,368 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 409 transitions. [2022-12-14 06:04:48,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2022-12-14 06:04:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 409 transitions. [2022-12-14 06:04:48,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 06:04:48,370 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:48,370 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:04:48,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:04:48,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:04:48,572 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:04:48,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:48,572 INFO L85 PathProgramCache]: Analyzing trace with hash 271214609, now seen corresponding path program 1 times [2022-12-14 06:04:48,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:04:48,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171408321] [2022-12-14 06:04:48,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:04:48,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:04:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:04:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 06:04:48,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:04:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171408321] [2022-12-14 06:04:48,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171408321] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:04:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277697018] [2022-12-14 06:04:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:04:48,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:04:48,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:04:48,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:04:48,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:04:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:04:48,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:04:48,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 06:04:48,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:04:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 06:04:48,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277697018] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:04:48,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1041815300] [2022-12-14 06:04:48,975 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 06:04:48,976 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:04:48,976 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:04:48,976 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:04:48,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:05:29,792 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 06:05:30,078 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:05:30,360 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:06:14,385 WARN L233 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 583 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:06:32,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1041815300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:06:32,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:06:32,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 06:06:32,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754916064] [2022-12-14 06:06:32,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:06:32,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 06:06:32,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:06:32,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 06:06:32,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2022-12-14 06:06:32,951 INFO L87 Difference]: Start difference. First operand 291 states and 409 transitions. Second operand has 25 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-12-14 06:06:40,332 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 482 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:07:03,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:07:03,032 INFO L93 Difference]: Finished difference Result 652 states and 966 transitions. [2022-12-14 06:07:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 06:07:03,032 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 96 [2022-12-14 06:07:03,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:07:03,034 INFO L225 Difference]: With dead ends: 652 [2022-12-14 06:07:03,034 INFO L226 Difference]: Without dead ends: 407 [2022-12-14 06:07:03,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 84.0s TimeCoverageRelationStatistics Valid=181, Invalid=1225, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 06:07:03,036 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 130 mSDsluCounter, 4521 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:07:03,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 4792 Invalid, 2611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 2590 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 06:07:03,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-12-14 06:07:03,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 334. [2022-12-14 06:07:03,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 226 states have (on average 1.415929203539823) internal successors, (320), 231 states have internal predecessors, (320), 81 states have call successors, (81), 27 states have call predecessors, (81), 26 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2022-12-14 06:07:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 479 transitions. [2022-12-14 06:07:03,209 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 479 transitions. Word has length 96 [2022-12-14 06:07:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:07:03,210 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 479 transitions. [2022-12-14 06:07:03,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-12-14 06:07:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 479 transitions. [2022-12-14 06:07:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-14 06:07:03,211 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:03,211 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:03,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:07:03,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:07:03,412 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:03,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:03,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1643348498, now seen corresponding path program 1 times [2022-12-14 06:07:03,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:07:03,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311027963] [2022-12-14 06:07:03,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:03,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:07:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:07:03,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:07:03,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311027963] [2022-12-14 06:07:03,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311027963] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:07:03,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145846369] [2022-12-14 06:07:03,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:03,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:07:03,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:07:03,582 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:07:03,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:07:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:03,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:07:03,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:07:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:07:03,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:07:03,882 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:07:03,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145846369] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:07:03,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1678752097] [2022-12-14 06:07:03,886 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-12-14 06:07:03,886 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:07:03,886 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:07:03,886 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:07:03,886 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:07:36,755 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 06:07:37,040 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 06:07:37,101 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 259 for LOIs [2022-12-14 06:07:37,173 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 253 for LOIs [2022-12-14 06:07:37,251 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:07:37,539 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:08:15,770 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 636 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:08:26,948 WARN L233 SmtUtils]: Spent 10.88s on a formula simplification. DAG size of input: 638 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:08:36,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1678752097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:08:36,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:08:36,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 06:08:36,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604034485] [2022-12-14 06:08:36,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:08:36,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 06:08:36,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:08:36,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 06:08:36,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 06:08:36,722 INFO L87 Difference]: Start difference. First operand 334 states and 479 transitions. Second operand has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2022-12-14 06:08:45,965 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 581 DAG size of output: 382 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:08:58,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:08:58,730 INFO L93 Difference]: Finished difference Result 722 states and 1085 transitions. [2022-12-14 06:08:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 06:08:58,731 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 99 [2022-12-14 06:08:58,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:08:58,733 INFO L225 Difference]: With dead ends: 722 [2022-12-14 06:08:58,733 INFO L226 Difference]: Without dead ends: 477 [2022-12-14 06:08:58,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 67.0s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 06:08:58,734 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 107 mSDsluCounter, 4893 mSDsCounter, 0 mSdLazyCounter, 4108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 5163 SdHoareTripleChecker+Invalid, 4119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:08:58,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 5163 Invalid, 4119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4108 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2022-12-14 06:08:58,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-12-14 06:08:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 430. [2022-12-14 06:08:59,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 315 states have (on average 1.4761904761904763) internal successors, (465), 321 states have internal predecessors, (465), 85 states have call successors, (85), 30 states have call predecessors, (85), 29 states have return successors, (82), 80 states have call predecessors, (82), 82 states have call successors, (82) [2022-12-14 06:08:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 632 transitions. [2022-12-14 06:08:59,042 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 632 transitions. Word has length 99 [2022-12-14 06:08:59,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:08:59,042 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 632 transitions. [2022-12-14 06:08:59,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2022-12-14 06:08:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 632 transitions. [2022-12-14 06:08:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 06:08:59,044 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:08:59,044 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:08:59,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:08:59,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:08:59,244 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:08:59,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:08:59,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1417004274, now seen corresponding path program 1 times [2022-12-14 06:08:59,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:08:59,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333664806] [2022-12-14 06:08:59,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:08:59,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:08:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:08:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:08:59,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:08:59,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333664806] [2022-12-14 06:08:59,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333664806] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:08:59,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125338564] [2022-12-14 06:08:59,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:08:59,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:08:59,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:08:59,393 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:08:59,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:08:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:08:59,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:08:59,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:08:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:08:59,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:08:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:08:59,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125338564] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:08:59,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1434211358] [2022-12-14 06:08:59,662 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2022-12-14 06:08:59,662 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:08:59,662 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:08:59,662 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:08:59,662 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:09:58,273 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:09:58,556 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-12-14 06:10:00,507 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 06:10:00,547 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:10:00,900 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-12-14 06:11:10,460 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 250 for LOIs [2022-12-14 06:11:10,492 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 458 for LOIs [2022-12-14 06:11:11,069 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 446 for LOIs [2022-12-14 06:11:11,757 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 253 for LOIs [2022-12-14 06:11:11,830 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-12-14 06:11:11,872 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 06:11:13,674 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 255 for LOIs [2022-12-14 06:11:13,717 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:14:03,780 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 686 DAG size of output: 530 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:14:10,754 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 686 DAG size of output: 530 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:14:18,560 WARN L233 SmtUtils]: Spent 6.92s on a formula simplification. DAG size of input: 689 DAG size of output: 560 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:14:26,586 WARN L233 SmtUtils]: Spent 7.12s on a formula simplification. DAG size of input: 691 DAG size of output: 562 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:14:27,518 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10643#(and (= ~__ste_Client_Keyring1_User2~0 0) (= ~__GUIDSL_NON_TERMINAL_main~0 0) (= ~__ste_email_subject0~0.offset 0) (<= 0 ~__ste_email_encryptionKey1~0) (= ~__SELECTED_FEATURE_Sign~0 0) (= 0 ~__ste_Client_AddressBook0_Address2~0) (= ~__ste_client_outbuffer3~0 0) (= ~__ste_Client_counter~0 0) (= ~__ste_Client_Keyring1_PublicKey2~0 0) (<= ~__ste_client_forwardReceiver1~0 3) (<= ~__ste_client_forwardReceiver0~0 0) (<= ~__ste_email_encryptionKey1~0 0) (<= ~__ste_email_isSignatureVerified1~0 0) (= ~__ste_client_autoResponse1~0 0) (= ~__ste_Client_AddressBook2_Alias0~0 0) (= 0 ~__ste_email_subject0~0.base) (= ~__ste_Client_AddressBook2_Alias1~0 0) (= ~__ste_Client_Keyring2_PublicKey2~0 0) (= ~__ste_client_forwardReceiver3~0 0) (= ~__ste_client_name2~0.offset 0) (= ~__ste_client_name1~0.base 0) (= ~__SELECTED_FEATURE_Verify~0 0) (= ~__ste_Client_Keyring1_User0~0 0) (<= ~__ste_client_idCounter2~0 3) (<= ~queued_message~0 0) (<= ~__ste_email_isSignatureVerified0~0 0) (= ~__ste_email_body1~0.offset 0) (= ~__SELECTED_FEATURE_Encrypt~0 0) (= ~__ste_Client_AddressBook1_Address2~0 0) (<= ~__ste_email_from0~0 2147483647) (= ~__ste_ClientAddressBook_size1~0 0) (= ~__ste_Client_Keyring0_PublicKey0~0 0) (= ~__ste_Email_counter~0 0) (= ~__ste_ClientKeyring_size1~0 0) (= ~__ste_email_body0~0.offset 0) (<= 0 ~__ste_email_isSigned1~0) (<= 0 (+ ~__ste_email_from0~0 2147483648)) (= ~__ste_Client_Keyring0_User2~0 0) (= ~__ste_ClientAddressBook_size0~0 0) (= ~__ste_Client_Keyring0_User1~0 0) (= ~__ste_Client_AddressBook1_Alias1~0 0) (= ~__ste_client_name1~0.offset 0) (= ~head~0.offset 0) (= ~__ste_client_name0~0.offset 0) (= ~__ste_Client_Keyring0_PublicKey2~0 0) (= ~sent_signed~0 1) (<= ~__ste_client_privateKey2~0 789) (= ~__ste_Client_Keyring1_PublicKey0~0 0) (<= ~queue_empty~0 1) (= ~__SELECTED_FEATURE_Decrypt~0 0) (<= 0 (+ ~__ste_email_signKey0~0 2147483648)) (<= 0 ~__ste_email_isEncrypted1~0) (= ~__SELECTED_FEATURE_Keys~0 0) (<= ~__ste_email_signKey0~0 2147483647) (= ~__SELECTED_FEATURE_AddressBook~0 0) (= ~__ste_Client_Keyring0_PublicKey1~0 0) (= ~__SELECTED_FEATURE_Forward~0 0) (<= 0 ~__ste_email_isEncrypted0~0) (= ~__ste_Client_Keyring0_User0~0 0) (<= ~__ste_client_idCounter0~0 2147483647) (= ~__ste_Client_Keyring2_PublicKey1~0 0) (= ~__ste_email_body0~0.base 0) (<= ~__ste_email_isSigned0~0 1) (<= ~__ste_email_isEncrypted0~0 0) (= ~__ste_Client_AddressBook0_Alias0~0 0) (= ~__ste_email_id0~0 0) (= ~__ste_Client_Keyring2_User1~0 0) (<= 3 ~__ste_client_idCounter2~0) (= ~__ste_Client_AddressBook2_Address2~0 0) (= 3 ~chuck~0) (= ~__ste_Client_AddressBook2_Address1~0 0) (<= 0 ~__ste_email_signKey1~0) (<= 1 ~queue_empty~0) (<= ~__ste_email_signKey1~0 0) (<= ~__ste_email_isSigned1~0 0) (= ~bob~0 1) (<= 0 ~queued_message~0) (= ~__ste_Client_AddressBook1_Alias2~0 0) (<= 0 ~__ste_email_isSignatureVerified1~0) (= ~__ste_client_outbuffer0~0 0) (<= 789 ~__ste_client_privateKey2~0) (= ~__SELECTED_FEATURE_Base~0 0) (= ~__ste_Client_Keyring2_User0~0 0) (= ~rjh~0 2) (= 0 ~__ste_Client_AddressBook0_Address1~0) (= ~__ste_Client_AddressBook2_Address0~0 0) (= ~__ste_Client_Keyring1_PublicKey1~0 0) (<= 0 ~queued_client~0) (<= 0 ~__ste_client_forwardReceiver0~0) (= ~__ste_Client_Keyring2_PublicKey0~0 0) (<= 0 ~__ste_email_isSignatureVerified0~0) (= ~__ste_Client_AddressBook1_Address0~0 0) (<= 0 ~__ste_client_forwardReceiver2~0) (= ~__ste_client_name2~0.base 0) (<= ~__ste_email_encryptionKey0~0 0) (= ~__ste_email_subject1~0.base 0) (= ~__ste_Client_AddressBook1_Alias0~0 0) (= ~__ste_Client_Keyring2_User2~0 0) (= ~head~0.base 0) (= ~__ste_Client_Keyring1_User1~0 0) (= |#NULL.offset| 0) (= ~__ste_Client_AddressBook2_Alias2~0 0) (<= 0 ~__ste_email_isSigned0~0) (= ~__ste_email_subject1~0.offset 0) (= ~__ste_Client_AddressBook0_Alias2~0 0) (= ~__ste_ClientKeyring_size0~0 0) (= ~__ste_Client_AddressBook1_Address1~0 0) (= 0 ~__ste_Client_AddressBook0_Address0~0) (= ~__ste_client_outbuffer1~0 0) (= ~__ste_Client_AddressBook0_Alias1~0 0) (<= ~__ste_email_isEncrypted1~0 0) (= ~__GUIDSL_ROOT_PRODUCTION~0 0) (<= 0 ~__ste_client_forwardReceiver1~0) (= ~__ste_client_name0~0.base 0) (= ~__ste_email_id1~0 0) (= ~__ste_client_outbuffer2~0 0) (<= 0 (+ ~__ste_client_idCounter0~0 2147483648)) (<= ~__ste_client_forwardReceiver2~0 0) (<= 2 ~__ste_email_to0~0) (<= 0 |#StackHeapBarrier|) (<= ~__ste_email_to0~0 2) (= ~__ste_ClientAddressBook_size2~0 0) (= ~__SELECTED_FEATURE_AutoResponder~0 0) (= ~__ste_client_autoResponse0~0 0) (= ~__ste_email_body1~0.base 0) (= ~__ste_ClientKeyring_size2~0 0) (= ~__ste_client_autoResponse2~0 0) (<= 0 ~__ste_email_encryptionKey0~0) (= |#NULL.base| 0) (<= ~queued_client~0 0))' at error location [2022-12-14 06:14:27,519 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:14:27,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:14:27,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 06:14:27,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328258171] [2022-12-14 06:14:27,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:14:27,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:14:27,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:14:27,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:14:27,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=5743, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 06:14:27,521 INFO L87 Difference]: Start difference. First operand 430 states and 632 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 06:14:28,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:14:28,772 INFO L93 Difference]: Finished difference Result 1035 states and 1566 transitions. [2022-12-14 06:14:28,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:14:28,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 98 [2022-12-14 06:14:28,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:14:28,775 INFO L225 Difference]: With dead ends: 1035 [2022-12-14 06:14:28,775 INFO L226 Difference]: Without dead ends: 900 [2022-12-14 06:14:28,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 217 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 193.7s TimeCoverageRelationStatistics Valid=263, Invalid=5743, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 06:14:28,777 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 237 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:14:28,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 983 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:14:28,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-12-14 06:14:29,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 872. [2022-12-14 06:14:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 685 states have (on average 1.5153284671532847) internal successors, (1038), 695 states have internal predecessors, (1038), 157 states have call successors, (157), 30 states have call predecessors, (157), 29 states have return successors, (154), 148 states have call predecessors, (154), 154 states have call successors, (154) [2022-12-14 06:14:29,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1349 transitions. [2022-12-14 06:14:29,633 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1349 transitions. Word has length 98 [2022-12-14 06:14:29,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:14:29,633 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1349 transitions. [2022-12-14 06:14:29,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 06:14:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1349 transitions. [2022-12-14 06:14:29,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 06:14:29,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:14:29,636 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:14:29,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:14:29,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:14:29,838 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:14:29,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:14:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash -285954986, now seen corresponding path program 1 times [2022-12-14 06:14:29,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:14:29,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725782609] [2022-12-14 06:14:29,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:14:29,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:14:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:14:31,078 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 06:14:31,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:14:31,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725782609] [2022-12-14 06:14:31,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725782609] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:14:31,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608702243] [2022-12-14 06:14:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:14:31,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:14:31,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:14:31,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:14:31,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83320872-5c8f-4e2e-b78e-2d1725740384/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:14:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:14:31,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 126 conjunts are in the unsatisfiable core [2022-12-14 06:14:31,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:14:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:14:32,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:14:34,351 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 06:14:34,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608702243] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:14:34,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [643305010] [2022-12-14 06:14:34,353 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2022-12-14 06:14:34,353 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:14:34,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:14:34,353 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:14:34,353 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:14:59,587 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:14:59,874 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 269 for LOIs [2022-12-14 06:15:01,619 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2022-12-14 06:15:01,654 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:15:01,942 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-12-14 06:15:36,025 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 246 for LOIs [2022-12-14 06:15:36,055 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 463 for LOIs [2022-12-14 06:15:36,622 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 450 for LOIs [2022-12-14 06:15:37,238 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 249 for LOIs [2022-12-14 06:15:37,278 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 431 for LOIs [2022-12-14 06:15:37,510 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 481 for LOIs [2022-12-14 06:15:42,080 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 251 for LOIs [2022-12-14 06:15:42,119 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:16:37,641 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 543 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)