./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI --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 f29a19c3efa542dcf2ceb090606fb32840c0b6e985b77630bcd852a7818d8a39 --- 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-5e519f3 [2022-11-03 02:06:50,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:06:50,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:06:50,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:06:50,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:06:50,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:06:50,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:06:50,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:06:50,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:06:50,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:06:50,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:06:50,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:06:50,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:06:50,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:06:50,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:06:50,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:06:50,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:06:50,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:06:50,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:06:50,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:06:50,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:06:50,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:06:50,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:06:50,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:06:50,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:06:50,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:06:50,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:06:50,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:06:50,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:06:50,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:06:50,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:06:50,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:06:50,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:06:50,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:06:50,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:06:50,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:06:50,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:06:50,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:06:50,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:06:50,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:06:50,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:06:50,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:06:50,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:06:50,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:06:50,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:06:50,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:06:50,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:06:50,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:06:50,397 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:06:50,398 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:06:50,398 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:06:50,398 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:06:50,399 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:06:50,400 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:06:50,400 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:06:50,400 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:06:50,400 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:06:50,400 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:06:50,401 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:06:50,401 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:06:50,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:06:50,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:06:50,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:06:50,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:06:50,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:06:50,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:06:50,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:06:50,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:06:50,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:06:50,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:06:50,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:06:50,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:06:50,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:06:50,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:06:50,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:06:50,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:06:50,406 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:06:50,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:06:50,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:06:50,407 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:06:50,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:06:50,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:06:50,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:06:50,408 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_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f29a19c3efa542dcf2ceb090606fb32840c0b6e985b77630bcd852a7818d8a39 [2022-11-03 02:06:50,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:06:50,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:06:50,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:06:50,722 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:06:50,723 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:06:50,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c [2022-11-03 02:06:50,808 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/data/90398f479/c9f7b319ddcf478ab31918e1697b4abf/FLAG6a58319bd [2022-11-03 02:06:51,352 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:06:51,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/sv-benchmarks/c/product-lines/email_spec11_product26.cil.c [2022-11-03 02:06:51,375 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/data/90398f479/c9f7b319ddcf478ab31918e1697b4abf/FLAG6a58319bd [2022-11-03 02:06:51,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/data/90398f479/c9f7b319ddcf478ab31918e1697b4abf [2022-11-03 02:06:51,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:06:51,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:06:51,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:06:51,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:06:51,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:06:51,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:06:51" (1/1) ... [2022-11-03 02:06:51,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d8794e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:51, skipping insertion in model container [2022-11-03 02:06:51,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:06:51" (1/1) ... [2022-11-03 02:06:51,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:06:51,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:06:52,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/sv-benchmarks/c/product-lines/email_spec11_product26.cil.c[63627,63640] [2022-11-03 02:06:52,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:06:52,382 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:06:52,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/sv-benchmarks/c/product-lines/email_spec11_product26.cil.c[63627,63640] [2022-11-03 02:06:52,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:06:52,506 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:06:52,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52 WrapperNode [2022-11-03 02:06:52,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:06:52,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:06:52,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:06:52,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:06:52,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,623 INFO L138 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1089 [2022-11-03 02:06:52,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:06:52,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:06:52,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:06:52,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:06:52,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:06:52,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:06:52,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:06:52,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:06:52,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (1/1) ... [2022-11-03 02:06:52,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:06:52,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:52,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:06:52,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:06:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 02:06:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 02:06:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 02:06:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 02:06:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 02:06:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 02:06:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 02:06:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 02:06:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 02:06:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 02:06:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-03 02:06:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-03 02:06:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 02:06:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 02:06:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 02:06:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 02:06:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 02:06:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 02:06:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 02:06:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 02:06:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 02:06:52,845 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 02:06:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 02:06:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 02:06:52,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 02:06:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-03 02:06:52,846 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-03 02:06:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 02:06:52,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 02:06:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:06:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 02:06:52,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 02:06:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 02:06:52,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 02:06:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 02:06:52,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 02:06:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 02:06:52,849 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 02:06:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 02:06:52,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 02:06:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 02:06:52,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 02:06:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 02:06:52,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 02:06:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 02:06:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 02:06:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:06:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 02:06:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 02:06:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 02:06:52,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 02:06:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:06:52,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:06:53,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:06:53,140 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:06:54,036 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:06:54,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:06:54,628 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:06:54,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:06:54 BoogieIcfgContainer [2022-11-03 02:06:54,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:06:54,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:06:54,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:06:54,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:06:54,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:06:51" (1/3) ... [2022-11-03 02:06:54,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4683e351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:06:54, skipping insertion in model container [2022-11-03 02:06:54,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:52" (2/3) ... [2022-11-03 02:06:54,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4683e351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:06:54, skipping insertion in model container [2022-11-03 02:06:54,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:06:54" (3/3) ... [2022-11-03 02:06:54,640 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product26.cil.c [2022-11-03 02:06:54,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:06:54,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:06:54,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:06:54,750 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;@29ff86a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:06:54,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:06:54,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 118 states have internal predecessors, (148), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-03 02:06:54,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 02:06:54,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:54,790 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:54,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:54,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:54,797 INFO L85 PathProgramCache]: Analyzing trace with hash 120790459, now seen corresponding path program 1 times [2022-11-03 02:06:54,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:54,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336705425] [2022-11-03 02:06:54,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:54,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:55,196 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:06:55,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:55,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336705425] [2022-11-03 02:06:55,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336705425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:55,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:55,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:06:55,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138545052] [2022-11-03 02:06:55,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:55,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:06:55,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:55,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:06:55,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:06:55,249 INFO L87 Difference]: Start difference. First operand has 201 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 118 states have internal predecessors, (148), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 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) [2022-11-03 02:06:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:55,428 INFO L93 Difference]: Finished difference Result 310 states and 415 transitions. [2022-11-03 02:06:55,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:06:55,430 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 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 [2022-11-03 02:06:55,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:55,451 INFO L225 Difference]: With dead ends: 310 [2022-11-03 02:06:55,451 INFO L226 Difference]: Without dead ends: 198 [2022-11-03 02:06:55,461 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 [2022-11-03 02:06:55,471 INFO L413 NwaCegarLoop]: 228 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, 228 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 [2022-11-03 02:06:55,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:06:55,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-03 02:06:55,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-03 02:06:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 115 states have internal predecessors, (142), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-03 02:06:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2022-11-03 02:06:55,535 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 84 [2022-11-03 02:06:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:55,537 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2022-11-03 02:06:55,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 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) [2022-11-03 02:06:55,537 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2022-11-03 02:06:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-03 02:06:55,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:55,541 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:55,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:06:55,542 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:55,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:55,543 INFO L85 PathProgramCache]: Analyzing trace with hash 458755224, now seen corresponding path program 1 times [2022-11-03 02:06:55,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:55,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208029427] [2022-11-03 02:06:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:55,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:06:55,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:55,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208029427] [2022-11-03 02:06:55,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208029427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:55,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:55,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:06:55,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723785713] [2022-11-03 02:06:55,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:55,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:55,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:55,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:55,818 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:06:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:55,989 INFO L93 Difference]: Finished difference Result 306 states and 400 transitions. [2022-11-03 02:06:55,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:55,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2022-11-03 02:06:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:55,995 INFO L225 Difference]: With dead ends: 306 [2022-11-03 02:06:55,995 INFO L226 Difference]: Without dead ends: 200 [2022-11-03 02:06:55,996 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 [2022-11-03 02:06:55,997 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 0 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 449 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 [2022-11-03 02:06:55,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 449 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:06:56,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-03 02:06:56,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-11-03 02:06:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 117 states have internal predecessors, (144), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-03 02:06:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2022-11-03 02:06:56,034 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 74 [2022-11-03 02:06:56,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:56,035 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2022-11-03 02:06:56,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:06:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2022-11-03 02:06:56,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 02:06:56,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:56,044 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:56,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:06:56,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:56,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:56,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1350248299, now seen corresponding path program 1 times [2022-11-03 02:06:56,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:56,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199005260] [2022-11-03 02:06:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:56,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:06:56,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:56,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199005260] [2022-11-03 02:06:56,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199005260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:56,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:56,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:06:56,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69734606] [2022-11-03 02:06:56,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:56,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:56,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:56,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:56,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:56,305 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:06:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:56,484 INFO L93 Difference]: Finished difference Result 435 states and 601 transitions. [2022-11-03 02:06:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:56,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 79 [2022-11-03 02:06:56,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:56,491 INFO L225 Difference]: With dead ends: 435 [2022-11-03 02:06:56,491 INFO L226 Difference]: Without dead ends: 253 [2022-11-03 02:06:56,493 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 [2022-11-03 02:06:56,499 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 59 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:56,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 464 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:06:56,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-03 02:06:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 248. [2022-11-03 02:06:56,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 147 states have (on average 1.3537414965986394) internal successors, (199), 151 states have internal predecessors, (199), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-03 02:06:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 350 transitions. [2022-11-03 02:06:56,557 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 350 transitions. Word has length 79 [2022-11-03 02:06:56,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:56,559 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 350 transitions. [2022-11-03 02:06:56,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:06:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 350 transitions. [2022-11-03 02:06:56,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 02:06:56,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:56,566 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:56,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:06:56,566 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:56,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash -184388308, now seen corresponding path program 1 times [2022-11-03 02:06:56,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:56,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828802177] [2022-11-03 02:06:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:56,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:06:56,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:56,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828802177] [2022-11-03 02:06:56,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828802177] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:56,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409215612] [2022-11-03 02:06:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:56,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:56,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:56,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:06:56,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:06:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:57,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:06:57,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:57,302 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:06:57,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:06:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:06:57,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409215612] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:06:57,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1173836106] [2022-11-03 02:06:57,419 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-11-03 02:06:57,419 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:06:57,423 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:06:57,428 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:06:57,429 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:07:55,144 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 02:07:55,630 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:07:56,178 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:08:09,285 WARN L234 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:15,050 WARN L234 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:33,622 WARN L234 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 476 DAG size of output: 363 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:40,425 WARN L234 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 486 DAG size of output: 311 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:53,848 WARN L234 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 508 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:09:18,360 WARN L234 SmtUtils]: Spent 23.03s on a formula simplification. DAG size of input: 589 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:09:43,737 WARN L234 SmtUtils]: Spent 23.53s on a formula simplification. DAG size of input: 591 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:10:09,275 WARN L234 SmtUtils]: Spent 23.54s on a formula simplification. DAG size of input: 590 DAG size of output: 464 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:10:35,349 WARN L234 SmtUtils]: Spent 24.10s on a formula simplification. DAG size of input: 588 DAG size of output: 462 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:10:40,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1173836106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:40,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:10:40,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 02:10:40,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325915167] [2022-11-03 02:10:40,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:40,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 02:10:40,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:40,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 02:10:40,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:10:40,508 INFO L87 Difference]: Start difference. First operand 248 states and 350 transitions. Second operand has 21 states, 16 states have (on average 2.8125) internal successors, (45), 15 states have internal predecessors, (45), 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) [2022-11-03 02:10:52,934 WARN L234 SmtUtils]: Spent 10.33s on a formula simplification. DAG size of input: 511 DAG size of output: 424 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:11:03,498 WARN L234 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 511 DAG size of output: 424 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:11:14,717 WARN L234 SmtUtils]: Spent 10.86s on a formula simplification. DAG size of input: 518 DAG size of output: 430 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:11:25,159 WARN L234 SmtUtils]: Spent 10.09s on a formula simplification. DAG size of input: 509 DAG size of output: 425 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:11:36,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:36,121 INFO L93 Difference]: Finished difference Result 547 states and 807 transitions. [2022-11-03 02:11:36,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 02:11:36,124 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.8125) internal successors, (45), 15 states have internal predecessors, (45), 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 91 [2022-11-03 02:11:36,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:36,127 INFO L225 Difference]: With dead ends: 547 [2022-11-03 02:11:36,127 INFO L226 Difference]: Without dead ends: 317 [2022-11-03 02:11:36,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 206.7s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-03 02:11:36,129 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 128 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:36,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 3515 Invalid, 1942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-11-03 02:11:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-11-03 02:11:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 276. [2022-11-03 02:11:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 174 states have (on average 1.367816091954023) internal successors, (238), 178 states have internal predecessors, (238), 76 states have call successors, (76), 25 states have call predecessors, (76), 25 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-03 02:11:36,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 389 transitions. [2022-11-03 02:11:36,300 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 389 transitions. Word has length 91 [2022-11-03 02:11:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:36,301 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 389 transitions. [2022-11-03 02:11:36,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.8125) internal successors, (45), 15 states have internal predecessors, (45), 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) [2022-11-03 02:11:36,301 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 389 transitions. [2022-11-03 02:11:36,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 02:11:36,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:36,309 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:36,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:11:36,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:36,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:36,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:36,522 INFO L85 PathProgramCache]: Analyzing trace with hash 990561314, now seen corresponding path program 1 times [2022-11-03 02:11:36,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:36,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85104684] [2022-11-03 02:11:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:11:36,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:36,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85104684] [2022-11-03 02:11:36,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85104684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:11:36,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558008137] [2022-11-03 02:11:36,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:36,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:36,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:36,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:11:36,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:11:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:37,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:11:37,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:11:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:11:37,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:11:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:11:37,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558008137] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:11:37,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [24613813] [2022-11-03 02:11:37,144 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-03 02:11:37,144 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:11:37,145 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:11:37,145 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:11:37,146 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:12:24,881 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 02:12:25,238 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 02:12:25,590 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-11-03 02:12:27,329 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-11-03 02:12:27,370 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 250 for LOIs [2022-11-03 02:12:28,149 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 257 for LOIs [2022-11-03 02:12:35,870 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 435 for LOIs [2022-11-03 02:12:36,556 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 468 for LOIs [2022-11-03 02:12:40,269 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 222 for LOIs [2022-11-03 02:12:40,308 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:13:14,379 WARN L234 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 476 DAG size of output: 363 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:21,034 WARN L234 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 486 DAG size of output: 311 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:34,331 WARN L234 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 508 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:52,134 WARN L234 SmtUtils]: Spent 16.26s on a formula simplification. DAG size of input: 587 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:14:16,175 WARN L234 SmtUtils]: Spent 22.45s on a formula simplification. DAG size of input: 589 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:14:42,587 WARN L234 SmtUtils]: Spent 7.56s on a formula simplification. DAG size of input: 468 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:15:17,748 WARN L234 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 435 DAG size of output: 241 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:15:27,799 WARN L234 SmtUtils]: Spent 7.53s on a formula simplification. DAG size of input: 454 DAG size of output: 249 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:15:53,573 WARN L234 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 587 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:15:59,756 WARN L234 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 588 DAG size of output: 374 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:16:06,971 WARN L234 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 652 DAG size of output: 417 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:16:06,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [24613813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:06,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:16:06,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-11-03 02:16:06,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595444756] [2022-11-03 02:16:06,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:06,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-03 02:16:06,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:06,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-03 02:16:06,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=3262, Unknown=0, NotChecked=0, Total=3422 [2022-11-03 02:16:06,979 INFO L87 Difference]: Start difference. First operand 276 states and 389 transitions. Second operand has 54 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-11-03 02:16:17,991 WARN L234 SmtUtils]: Spent 7.94s on a formula simplification. DAG size of input: 458 DAG size of output: 338 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:16:37,996 WARN L234 SmtUtils]: Spent 19.49s on a formula simplification. DAG size of input: 504 DAG size of output: 456 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:16:47,711 WARN L234 SmtUtils]: Spent 8.94s on a formula simplification. DAG size of input: 458 DAG size of output: 380 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:16:57,483 WARN L234 SmtUtils]: Spent 8.94s on a formula simplification. DAG size of input: 456 DAG size of output: 378 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:18:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:00,697 INFO L93 Difference]: Finished difference Result 663 states and 976 transitions. [2022-11-03 02:18:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-03 02:18:00,698 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) Word has length 86 [2022-11-03 02:18:00,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:00,701 INFO L225 Difference]: With dead ends: 663 [2022-11-03 02:18:00,701 INFO L226 Difference]: Without dead ends: 433 [2022-11-03 02:18:00,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 201 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 293.4s TimeCoverageRelationStatistics Valid=257, Invalid=5293, Unknown=0, NotChecked=0, Total=5550 [2022-11-03 02:18:00,704 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 215 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 6820 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 5628 SdHoareTripleChecker+Invalid, 6866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 6820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:00,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 5628 Invalid, 6866 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [46 Valid, 6820 Invalid, 0 Unknown, 0 Unchecked, 26.2s Time] [2022-11-03 02:18:00,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-03 02:18:01,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 350. [2022-11-03 02:18:01,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 230 states have (on average 1.3608695652173912) internal successors, (313), 235 states have internal predecessors, (313), 88 states have call successors, (88), 33 states have call predecessors, (88), 31 states have return successors, (88), 83 states have call predecessors, (88), 87 states have call successors, (88) [2022-11-03 02:18:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 489 transitions. [2022-11-03 02:18:01,063 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 489 transitions. Word has length 86 [2022-11-03 02:18:01,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:01,064 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 489 transitions. [2022-11-03 02:18:01,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-11-03 02:18:01,065 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 489 transitions. [2022-11-03 02:18:01,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-03 02:18:01,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:01,067 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:01,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:01,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:18:01,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:01,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:01,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2014060439, now seen corresponding path program 1 times [2022-11-03 02:18:01,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:01,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962739639] [2022-11-03 02:18:01,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:01,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:18:01,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:01,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962739639] [2022-11-03 02:18:01,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962739639] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:18:01,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305829181] [2022-11-03 02:18:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:01,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:18:01,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:18:01,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:18:01,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e30a94-e404-471d-a93e-4c4ec5235a61/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:18:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:01,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:18:01,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:01,849 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:18:01,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:18:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:18:01,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305829181] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:18:01,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [793985370] [2022-11-03 02:18:01,943 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-03 02:18:01,944 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:18:01,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:18:01,945 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:18:01,945 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:19:01,077 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 02:19:01,470 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-11-03 02:19:01,539 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-11-03 02:19:01,614 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 233 for LOIs [2022-11-03 02:19:01,686 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:19:02,028 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:19:14,547 WARN L234 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:19:20,221 WARN L234 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:19:38,440 WARN L234 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 476 DAG size of output: 363 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:19:45,183 WARN L234 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 486 DAG size of output: 311 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)