./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product23.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_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/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_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/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_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/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 b26e97b5c42973451de5f20f984873ade34b15aaa31cbbdc58b330ea8f51f185 --- 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 10:01:12,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:01:12,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:01:12,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:01:12,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:01:12,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:01:12,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:01:12,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:01:12,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:01:12,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:01:12,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:01:12,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:01:12,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:01:12,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:01:12,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:01:12,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:01:12,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:01:12,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:01:12,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:01:12,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:01:12,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:01:12,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:01:12,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:01:12,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:01:12,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:01:12,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:01:12,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:01:12,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:01:12,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:01:12,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:01:12,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:01:12,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:01:12,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:01:12,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:01:12,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:01:12,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:01:12,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:01:12,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:01:12,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:01:12,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:01:12,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:01:12,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:01:12,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:01:12,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:01:12,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:01:12,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:01:12,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:01:12,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:01:12,623 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:01:12,624 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:01:12,624 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:01:12,624 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:01:12,624 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:01:12,624 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:01:12,624 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:01:12,625 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:01:12,625 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:01:12,625 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:01:12,625 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:01:12,625 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:01:12,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:01:12,626 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:01:12,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:01:12,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:01:12,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:01:12,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:01:12,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:01:12,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:01:12,627 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:01:12,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:01:12,627 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:01:12,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:01:12,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:01:12,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:01:12,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:01:12,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:01:12,628 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:01:12,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:01:12,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:01:12,629 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:01:12,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:01:12,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:01:12,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:01:12,629 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_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b26e97b5c42973451de5f20f984873ade34b15aaa31cbbdc58b330ea8f51f185 [2022-12-14 10:01:12,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:01:12,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:01:12,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:01:12,846 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:01:12,847 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:01:12,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c [2022-12-14 10:01:15,354 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:01:15,554 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:01:15,554 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c [2022-12-14 10:01:15,566 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/data/341ff077a/ba542f88b9bf451aa652bd74e21a9027/FLAG1f31983e4 [2022-12-14 10:01:15,910 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/data/341ff077a/ba542f88b9bf451aa652bd74e21a9027 [2022-12-14 10:01:15,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:01:15,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:01:15,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:01:15,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:01:15,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:01:15,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:01:15" (1/1) ... [2022-12-14 10:01:15,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58383d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:15, skipping insertion in model container [2022-12-14 10:01:15,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:01:15" (1/1) ... [2022-12-14 10:01:15,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:01:15,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:01:16,134 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,137 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,142 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,152 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,224 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,228 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,229 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,231 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,237 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,263 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_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c[46731,46744] [2022-12-14 10:01:16,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:01:16,311 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:01:16,322 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,323 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,325 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,328 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,348 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,349 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,350 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,351 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,354 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:16,363 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_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c[46731,46744] [2022-12-14 10:01:16,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:01:16,398 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:01:16,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16 WrapperNode [2022-12-14 10:01:16,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:01:16,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:01:16,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:01:16,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:01:16,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,463 INFO L138 Inliner]: procedures = 130, calls = 219, calls flagged for inlining = 58, calls inlined = 52, statements flattened = 952 [2022-12-14 10:01:16,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:01:16,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:01:16,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:01:16,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:01:16,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,508 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:01:16,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:01:16,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:01:16,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:01:16,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (1/1) ... [2022-12-14 10:01:16,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:01:16,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:01:16,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:01:16,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:01:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 10:01:16,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 10:01:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 10:01:16,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 10:01:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 10:01:16,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 10:01:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 10:01:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 10:01:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 10:01:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 10:01:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 10:01:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 10:01:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 10:01:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 10:01:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 10:01:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 10:01:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 10:01:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 10:01:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 10:01:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 10:01:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 10:01:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 10:01:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 10:01:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:01:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 10:01:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 10:01:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 10:01:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 10:01:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 10:01:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 10:01:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 10:01:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 10:01:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 10:01:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 10:01:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-12-14 10:01:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-12-14 10:01:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 10:01:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 10:01:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 10:01:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 10:01:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 10:01:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 10:01:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 10:01:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 10:01:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:01:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 10:01:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 10:01:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 10:01:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 10:01:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:01:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:01:16,757 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:01:16,759 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:01:17,360 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:01:17,763 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:01:17,764 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 10:01:17,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:01:17 BoogieIcfgContainer [2022-12-14 10:01:17,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:01:17,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:01:17,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:01:17,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:01:17,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:01:15" (1/3) ... [2022-12-14 10:01:17,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbb4ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:01:17, skipping insertion in model container [2022-12-14 10:01:17,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:16" (2/3) ... [2022-12-14 10:01:17,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbb4ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:01:17, skipping insertion in model container [2022-12-14 10:01:17,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:01:17" (3/3) ... [2022-12-14 10:01:17,773 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product23.cil.c [2022-12-14 10:01:17,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:01:17,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:01:17,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:01:17,831 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;@48deed39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:01:17,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:01:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 105 states have (on average 1.3238095238095238) internal successors, (139), 108 states have internal predecessors, (139), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 10:01:17,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 10:01:17,845 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:17,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:17,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:17,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:17,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1133192, now seen corresponding path program 1 times [2022-12-14 10:01:17,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:17,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536496476] [2022-12-14 10:01:17,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:17,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:01:18,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:18,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536496476] [2022-12-14 10:01:18,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536496476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:18,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:18,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:01:18,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918109208] [2022-12-14 10:01:18,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:18,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:01:18,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:18,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:01:18,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:01:18,171 INFO L87 Difference]: Start difference. First operand has 183 states, 105 states have (on average 1.3238095238095238) internal successors, (139), 108 states have internal predecessors, (139), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:01:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:18,285 INFO L93 Difference]: Finished difference Result 274 states and 361 transitions. [2022-12-14 10:01:18,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:01:18,288 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 75 [2022-12-14 10:01:18,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:18,298 INFO L225 Difference]: With dead ends: 274 [2022-12-14 10:01:18,298 INFO L226 Difference]: Without dead ends: 180 [2022-12-14 10:01:18,302 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 10:01:18,305 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:18,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:01:18,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-12-14 10:01:18,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-12-14 10:01:18,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 105 states have internal predecessors, (133), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 10:01:18,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 238 transitions. [2022-12-14 10:01:18,346 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 238 transitions. Word has length 75 [2022-12-14 10:01:18,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:18,347 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 238 transitions. [2022-12-14 10:01:18,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:01:18,348 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 238 transitions. [2022-12-14 10:01:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 10:01:18,351 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:18,352 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:18,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:01:18,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:18,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:18,353 INFO L85 PathProgramCache]: Analyzing trace with hash -115339774, now seen corresponding path program 1 times [2022-12-14 10:01:18,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:18,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709673781] [2022-12-14 10:01:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:18,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:01:18,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:18,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709673781] [2022-12-14 10:01:18,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709673781] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:18,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:18,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:18,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845324405] [2022-12-14 10:01:18,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:18,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:18,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:18,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:18,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:18,555 INFO L87 Difference]: Start difference. First operand 180 states and 238 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:01:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:18,661 INFO L93 Difference]: Finished difference Result 270 states and 346 transitions. [2022-12-14 10:01:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:18,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-12-14 10:01:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:18,664 INFO L225 Difference]: With dead ends: 270 [2022-12-14 10:01:18,664 INFO L226 Difference]: Without dead ends: 182 [2022-12-14 10:01:18,665 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 10:01:18,667 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 0 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:18,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 405 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:01:18,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-12-14 10:01:18,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-12-14 10:01:18,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 107 states have internal predecessors, (135), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 10:01:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 240 transitions. [2022-12-14 10:01:18,685 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 240 transitions. Word has length 76 [2022-12-14 10:01:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:18,685 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 240 transitions. [2022-12-14 10:01:18,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:01:18,685 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 240 transitions. [2022-12-14 10:01:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 10:01:18,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:18,688 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:18,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:01:18,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:18,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:18,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1869082255, now seen corresponding path program 1 times [2022-12-14 10:01:18,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:18,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846219429] [2022-12-14 10:01:18,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:18,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:01:18,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:18,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846219429] [2022-12-14 10:01:18,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846219429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:18,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:18,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:18,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576728061] [2022-12-14 10:01:18,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:18,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:18,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:18,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:18,766 INFO L87 Difference]: Start difference. First operand 182 states and 240 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:01:18,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:18,869 INFO L93 Difference]: Finished difference Result 399 states and 547 transitions. [2022-12-14 10:01:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:18,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2022-12-14 10:01:18,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:18,872 INFO L225 Difference]: With dead ends: 399 [2022-12-14 10:01:18,872 INFO L226 Difference]: Without dead ends: 235 [2022-12-14 10:01:18,873 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 10:01:18,874 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 59 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:18,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 417 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:01:18,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-12-14 10:01:18,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 230. [2022-12-14 10:01:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 141 states have internal predecessors, (190), 67 states have call successors, (67), 23 states have call predecessors, (67), 23 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 10:01:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 323 transitions. [2022-12-14 10:01:18,893 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 323 transitions. Word has length 81 [2022-12-14 10:01:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:18,894 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 323 transitions. [2022-12-14 10:01:18,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:01:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 323 transitions. [2022-12-14 10:01:18,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 10:01:18,907 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:18,907 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:18,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:01:18,908 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:18,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:18,908 INFO L85 PathProgramCache]: Analyzing trace with hash -730429090, now seen corresponding path program 1 times [2022-12-14 10:01:18,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:18,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945561885] [2022-12-14 10:01:18,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:18,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:01:19,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:19,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945561885] [2022-12-14 10:01:19,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945561885] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:01:19,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392032962] [2022-12-14 10:01:19,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:19,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:01:19,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:01:19,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:01:19,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:01:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:19,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:01:19,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:01:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:01:19,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:01:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:01:19,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392032962] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:01:19,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1240188233] [2022-12-14 10:01:19,422 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 10:01:19,423 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:01:19,427 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:01:19,432 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:01:19,433 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:01:58,128 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 10:01:58,453 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 10:01:58,793 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:02:38,819 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 584 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:02:47,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1240188233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:02:47,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:02:47,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 10:02:47,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198371807] [2022-12-14 10:02:47,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:02:47,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 10:02:47,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:02:47,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 10:02:47,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 10:02:47,200 INFO L87 Difference]: Start difference. First operand 230 states and 323 transitions. Second operand has 21 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-14 10:02:59,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:02:59,901 INFO L93 Difference]: Finished difference Result 546 states and 820 transitions. [2022-12-14 10:02:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 10:02:59,901 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 82 [2022-12-14 10:02:59,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:02:59,903 INFO L225 Difference]: With dead ends: 546 [2022-12-14 10:02:59,903 INFO L226 Difference]: Without dead ends: 334 [2022-12-14 10:02:59,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 55.8s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 10:02:59,904 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 252 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 2816 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:02:59,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 2816 Invalid, 1780 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 10:02:59,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-12-14 10:02:59,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 258. [2022-12-14 10:02:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 166 states have (on average 1.3795180722891567) internal successors, (229), 168 states have internal predecessors, (229), 67 states have call successors, (67), 24 states have call predecessors, (67), 24 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 10:02:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 362 transitions. [2022-12-14 10:02:59,985 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 362 transitions. Word has length 82 [2022-12-14 10:02:59,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:02:59,986 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 362 transitions. [2022-12-14 10:02:59,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-14 10:02:59,986 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 362 transitions. [2022-12-14 10:02:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 10:02:59,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:02:59,987 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:02:59,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:03:00,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:03:00,188 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:03:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1549357961, now seen corresponding path program 1 times [2022-12-14 10:03:00,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:00,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078226897] [2022-12-14 10:03:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:00,333 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 10:03:00,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:00,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078226897] [2022-12-14 10:03:00,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078226897] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:03:00,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471160287] [2022-12-14 10:03:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:00,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:03:00,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:03:00,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:03:00,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:03:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:00,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:03:00,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:03:00,558 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 10:03:00,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:03:00,606 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 10:03:00,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471160287] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:03:00,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2048668310] [2022-12-14 10:03:00,610 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 10:03:00,610 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:03:00,611 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:03:00,611 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:03:00,611 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:03:48,135 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 10:03:48,461 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 10:03:48,782 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:04:27,260 WARN L233 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 579 DAG size of output: 374 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:04:41,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2048668310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:41,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:04:41,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 10:04:41,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927148284] [2022-12-14 10:04:41,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:41,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 10:04:41,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:41,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 10:04:41,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-12-14 10:04:41,125 INFO L87 Difference]: Start difference. First operand 258 states and 362 transitions. Second operand has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-12-14 10:05:06,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:06,615 INFO L93 Difference]: Finished difference Result 601 states and 899 transitions. [2022-12-14 10:05:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 10:05:06,616 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 88 [2022-12-14 10:05:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:06,617 INFO L225 Difference]: With dead ends: 601 [2022-12-14 10:05:06,617 INFO L226 Difference]: Without dead ends: 389 [2022-12-14 10:05:06,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 70.5s TimeCoverageRelationStatistics Valid=182, Invalid=1300, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 10:05:06,619 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 184 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:06,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 3244 Invalid, 2435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2415 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 10:05:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-12-14 10:05:06,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 294. [2022-12-14 10:05:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 199 states have (on average 1.4221105527638191) internal successors, (283), 202 states have internal predecessors, (283), 69 states have call successors, (69), 25 states have call predecessors, (69), 25 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2022-12-14 10:05:06,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 420 transitions. [2022-12-14 10:05:06,754 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 420 transitions. Word has length 88 [2022-12-14 10:05:06,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:06,755 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 420 transitions. [2022-12-14 10:05:06,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-12-14 10:05:06,755 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 420 transitions. [2022-12-14 10:05:06,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 10:05:06,756 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:06,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:06,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:05:06,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:05:06,959 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:06,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:06,961 INFO L85 PathProgramCache]: Analyzing trace with hash -394699954, now seen corresponding path program 1 times [2022-12-14 10:05:06,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:06,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101964027] [2022-12-14 10:05:06,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:06,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:07,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:05:07,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:07,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101964027] [2022-12-14 10:05:07,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101964027] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:05:07,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89352526] [2022-12-14 10:05:07,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:07,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:05:07,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:05:07,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:05:07,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:05:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:07,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:05:07,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:05:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:05:07,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:05:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:05:07,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89352526] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:05:07,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1194189413] [2022-12-14 10:05:07,370 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-12-14 10:05:07,370 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:05:07,371 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:05:07,371 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:05:07,371 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:07:12,340 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 10:07:12,657 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 434 for LOIs [2022-12-14 10:07:12,993 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 453 for LOIs [2022-12-14 10:07:13,351 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 277 for LOIs [2022-12-14 10:07:13,502 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 10:07:13,824 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:08:15,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1194189413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:15,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:08:15,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 10:08:15,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770491330] [2022-12-14 10:08:15,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:15,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 10:08:15,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:15,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 10:08:15,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1012, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 10:08:15,304 INFO L87 Difference]: Start difference. First operand 294 states and 420 transitions. Second operand has 29 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-12-14 10:08:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:31,876 INFO L93 Difference]: Finished difference Result 622 states and 931 transitions. [2022-12-14 10:08:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 10:08:31,877 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 91 [2022-12-14 10:08:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:31,879 INFO L225 Difference]: With dead ends: 622 [2022-12-14 10:08:31,879 INFO L226 Difference]: Without dead ends: 410 [2022-12-14 10:08:31,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 67.9s TimeCoverageRelationStatistics Valid=142, Invalid=1264, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 10:08:31,880 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 172 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 3478 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 3491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:31,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 3512 Invalid, 3491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 3478 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 10:08:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-12-14 10:08:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 331. [2022-12-14 10:08:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 229 states have (on average 1.4192139737991267) internal successors, (325), 233 states have internal predecessors, (325), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2022-12-14 10:08:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 470 transitions. [2022-12-14 10:08:32,067 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 470 transitions. Word has length 91 [2022-12-14 10:08:32,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:32,067 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 470 transitions. [2022-12-14 10:08:32,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-12-14 10:08:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 470 transitions. [2022-12-14 10:08:32,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 10:08:32,069 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:32,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:08:32,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:08:32,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 10:08:32,270 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:08:32,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:32,270 INFO L85 PathProgramCache]: Analyzing trace with hash -244302888, now seen corresponding path program 1 times [2022-12-14 10:08:32,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:32,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296728268] [2022-12-14 10:08:32,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:32,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:08:32,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:32,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296728268] [2022-12-14 10:08:32,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296728268] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:08:32,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521413322] [2022-12-14 10:08:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:32,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:08:32,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:08:32,378 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:08:32,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:08:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:32,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:08:32,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:08:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:08:32,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:08:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:08:32,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521413322] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:08:32,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [990371925] [2022-12-14 10:08:32,627 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-12-14 10:08:32,627 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:08:32,628 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:08:32,628 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:08:32,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:09:16,600 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:09:16,919 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-12-14 10:09:18,724 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 10:09:18,764 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 10:09:19,077 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 258 for LOIs [2022-12-14 10:09:22,629 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 266 for LOIs [2022-12-14 10:09:27,983 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 438 for LOIs [2022-12-14 10:09:28,241 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 248 for LOIs [2022-12-14 10:09:28,286 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-12-14 10:09:31,878 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 239 for LOIs [2022-12-14 10:09:31,924 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:10:13,617 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 574 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:10:47,939 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 575 DAG size of output: 403 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:11:08,867 WARN L233 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 480 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:11:53,155 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 537 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:11:57,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [990371925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:57,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:11:57,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [4, 4, 4] total 62 [2022-12-14 10:11:57,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132836677] [2022-12-14 10:11:57,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:57,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-12-14 10:11:57,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:57,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-12-14 10:11:57,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=3594, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 10:11:57,684 INFO L87 Difference]: Start difference. First operand 331 states and 470 transitions. Second operand has 57 states, 40 states have (on average 1.275) internal successors, (51), 37 states have internal predecessors, (51), 16 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-12-14 10:12:41,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:41,459 INFO L93 Difference]: Finished difference Result 668 states and 971 transitions. [2022-12-14 10:12:41,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 10:12:41,459 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 40 states have (on average 1.275) internal successors, (51), 37 states have internal predecessors, (51), 16 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 90 [2022-12-14 10:12:41,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:41,461 INFO L225 Difference]: With dead ends: 668 [2022-12-14 10:12:41,461 INFO L226 Difference]: Without dead ends: 436 [2022-12-14 10:12:41,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1176 ImplicationChecksByTransitivity, 168.0s TimeCoverageRelationStatistics Valid=295, Invalid=4675, Unknown=0, NotChecked=0, Total=4970 [2022-12-14 10:12:41,463 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 206 mSDsluCounter, 4978 mSDsCounter, 0 mSdLazyCounter, 7061 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 5188 SdHoareTripleChecker+Invalid, 7098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:41,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 5188 Invalid, 7098 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [37 Valid, 7061 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2022-12-14 10:12:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-12-14 10:12:41,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 391. [2022-12-14 10:12:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 268 states have (on average 1.376865671641791) internal successors, (369), 273 states have internal predecessors, (369), 88 states have call successors, (88), 36 states have call predecessors, (88), 34 states have return successors, (88), 81 states have call predecessors, (88), 87 states have call successors, (88) [2022-12-14 10:12:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 545 transitions. [2022-12-14 10:12:41,729 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 545 transitions. Word has length 90 [2022-12-14 10:12:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:41,729 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 545 transitions. [2022-12-14 10:12:41,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 40 states have (on average 1.275) internal successors, (51), 37 states have internal predecessors, (51), 16 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-12-14 10:12:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 545 transitions. [2022-12-14 10:12:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 10:12:41,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:41,731 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:12:41,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 10:12:41,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 10:12:41,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:12:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:41,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1448675221, now seen corresponding path program 1 times [2022-12-14 10:12:41,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:41,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839908796] [2022-12-14 10:12:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:41,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:42,088 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 10:12:42,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:42,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839908796] [2022-12-14 10:12:42,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839908796] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:12:42,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101174971] [2022-12-14 10:12:42,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:42,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:12:42,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:12:42,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:12:42,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:12:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:42,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:12:42,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:12:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:12:42,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:12:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:12:42,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101174971] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:12:42,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1991834077] [2022-12-14 10:12:42,350 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 10:12:42,350 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:12:42,350 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:12:42,351 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:12:42,351 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:13:49,035 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 10:13:49,356 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 439 for LOIs [2022-12-14 10:13:49,668 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:14:42,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1991834077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:14:42,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:14:42,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [6, 5, 5] total 32 [2022-12-14 10:14:42,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458718956] [2022-12-14 10:14:42,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:14:42,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 10:14:42,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:14:42,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 10:14:42,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:14:42,285 INFO L87 Difference]: Start difference. First operand 391 states and 545 transitions. Second operand has 24 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-12-14 10:15:02,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:15:02,704 INFO L93 Difference]: Finished difference Result 799 states and 1184 transitions. [2022-12-14 10:15:02,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 10:15:02,705 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 93 [2022-12-14 10:15:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:15:02,707 INFO L225 Difference]: With dead ends: 799 [2022-12-14 10:15:02,707 INFO L226 Difference]: Without dead ends: 560 [2022-12-14 10:15:02,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 252 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 65.5s TimeCoverageRelationStatistics Valid=177, Invalid=1305, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 10:15:02,708 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 185 mSDsluCounter, 3242 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:15:02,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 3469 Invalid, 2522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 10:15:02,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-12-14 10:15:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 417. [2022-12-14 10:15:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 292 states have (on average 1.3972602739726028) internal successors, (408), 298 states have internal predecessors, (408), 89 states have call successors, (89), 37 states have call predecessors, (89), 35 states have return successors, (89), 81 states have call predecessors, (89), 88 states have call successors, (89) [2022-12-14 10:15:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 586 transitions. [2022-12-14 10:15:03,049 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 586 transitions. Word has length 93 [2022-12-14 10:15:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:15:03,050 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 586 transitions. [2022-12-14 10:15:03,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-12-14 10:15:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 586 transitions. [2022-12-14 10:15:03,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 10:15:03,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:15:03,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:15:03,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 10:15:03,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:15:03,253 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:15:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:15:03,254 INFO L85 PathProgramCache]: Analyzing trace with hash 934753189, now seen corresponding path program 1 times [2022-12-14 10:15:03,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:15:03,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600471246] [2022-12-14 10:15:03,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:15:03,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:15:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:15:03,416 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 10:15:03,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:15:03,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600471246] [2022-12-14 10:15:03,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600471246] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:15:03,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351676822] [2022-12-14 10:15:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:15:03,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:15:03,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:15:03,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:15:03,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4136ae8c-3d7a-4e05-82b4-bf0ce9e7328f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 10:15:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:15:03,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:15:03,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:15:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:15:03,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:15:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:15:03,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351676822] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:15:03,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2098160769] [2022-12-14 10:15:03,666 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-12-14 10:15:03,666 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:15:03,666 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:15:03,666 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:15:03,667 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs