./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/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_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/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_6e25466e-cbcf-4bda-8a14-662dbc664212/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 82ac70e4cab6ba17956a8bc3031bcd401426df4beecacca096cae721fbfd8afd --- 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 13:10:27,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:10:27,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:10:27,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:10:27,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:10:27,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:10:27,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:10:27,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:10:27,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:10:27,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:10:27,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:10:27,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:10:27,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:10:27,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:10:27,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:10:27,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:10:27,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:10:27,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:10:27,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:10:27,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:10:27,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:10:27,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:10:27,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:10:27,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:10:27,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:10:27,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:10:27,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:10:27,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:10:27,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:10:27,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:10:27,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:10:27,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:10:27,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:10:27,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:10:27,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:10:27,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:10:27,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:10:27,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:10:27,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:10:27,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:10:27,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:10:27,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:10:27,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:10:27,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:10:27,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:10:27,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:10:27,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:10:27,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:10:27,717 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:10:27,717 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:10:27,717 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:10:27,717 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:10:27,718 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:10:27,718 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:10:27,718 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:10:27,718 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:10:27,718 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:10:27,719 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:10:27,719 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:10:27,719 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:10:27,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:10:27,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:10:27,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:10:27,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:10:27,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:10:27,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:10:27,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:10:27,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:10:27,721 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:10:27,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:10:27,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:10:27,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:10:27,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:10:27,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:10:27,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:10:27,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:10:27,722 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:10:27,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:10:27,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:10:27,723 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:10:27,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:10:27,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:10:27,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:10:27,723 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_6e25466e-cbcf-4bda-8a14-662dbc664212/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82ac70e4cab6ba17956a8bc3031bcd401426df4beecacca096cae721fbfd8afd [2022-12-14 13:10:27,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:10:27,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:10:27,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:10:27,932 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:10:27,932 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:10:27,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product26.cil.c [2022-12-14 13:10:30,506 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:10:30,745 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:10:30,745 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/sv-benchmarks/c/product-lines/email_spec9_product26.cil.c [2022-12-14 13:10:30,764 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/data/c42acf320/7dbfdcd25c704caab29711151dd674b6/FLAGbc451f6ad [2022-12-14 13:10:30,775 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/data/c42acf320/7dbfdcd25c704caab29711151dd674b6 [2022-12-14 13:10:30,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:10:30,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:10:30,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:10:30,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:10:30,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:10:30,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:10:30" (1/1) ... [2022-12-14 13:10:30,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4403360a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:30, skipping insertion in model container [2022-12-14 13:10:30,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:10:30" (1/1) ... [2022-12-14 13:10:30,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:10:30,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:10:31,086 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,088 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,091 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,124 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_6e25466e-cbcf-4bda-8a14-662dbc664212/sv-benchmarks/c/product-lines/email_spec9_product26.cil.c[24949,24962] [2022-12-14 13:10:31,153 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,158 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,159 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,161 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,173 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,174 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,175 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,176 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:10:31,251 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:10:31,287 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,288 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,298 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,307 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_6e25466e-cbcf-4bda-8a14-662dbc664212/sv-benchmarks/c/product-lines/email_spec9_product26.cil.c[24949,24962] [2022-12-14 13:10:31,309 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,310 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,311 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,312 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,316 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,316 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,317 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,318 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:10:31,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:10:31,363 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:10:31,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31 WrapperNode [2022-12-14 13:10:31,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:10:31,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:10:31,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:10:31,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:10:31,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,419 INFO L138 Inliner]: procedures = 132, calls = 230, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1109 [2022-12-14 13:10:31,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:10:31,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:10:31,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:10:31,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:10:31,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,452 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:10:31,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:10:31,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:10:31,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:10:31,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (1/1) ... [2022-12-14 13:10:31,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:10:31,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:10:31,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:10:31,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:10:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 13:10:31,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 13:10:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 13:10:31,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 13:10:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 13:10:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 13:10:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 13:10:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 13:10:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 13:10:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 13:10:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 13:10:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 13:10:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 13:10:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 13:10:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 13:10:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 13:10:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 13:10:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 13:10:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 13:10:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 13:10:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 13:10:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 13:10:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 13:10:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 13:10:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 13:10:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 13:10:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 13:10:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:10:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 13:10:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 13:10:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 13:10:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 13:10:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 13:10:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 13:10:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 13:10:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 13:10:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 13:10:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 13:10:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 13:10:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 13:10:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 13:10:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 13:10:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 13:10:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 13:10:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:10:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 13:10:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 13:10:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 13:10:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 13:10:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:10:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:10:31,677 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:10:31,679 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:10:32,266 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:10:32,755 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:10:32,755 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:10:32,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:10:32 BoogieIcfgContainer [2022-12-14 13:10:32,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:10:32,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:10:32,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:10:32,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:10:32,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:10:30" (1/3) ... [2022-12-14 13:10:32,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a17ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:10:32, skipping insertion in model container [2022-12-14 13:10:32,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:10:31" (2/3) ... [2022-12-14 13:10:32,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a17ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:10:32, skipping insertion in model container [2022-12-14 13:10:32,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:10:32" (3/3) ... [2022-12-14 13:10:32,767 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product26.cil.c [2022-12-14 13:10:32,787 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:10:32,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:10:32,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:10:32,844 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;@1107ae1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:10:32,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:10:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 13:10:32,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 13:10:32,860 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:10:32,860 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] [2022-12-14 13:10:32,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:10:32,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:10:32,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2132801566, now seen corresponding path program 1 times [2022-12-14 13:10:32,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:10:32,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464900868] [2022-12-14 13:10:32,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:10:32,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:10:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:10:33,145 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 13:10:33,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:10:33,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464900868] [2022-12-14 13:10:33,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464900868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:10:33,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:10:33,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:10:33,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040128578] [2022-12-14 13:10:33,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:10:33,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:10:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:10:33,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:10:33,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:10:33,183 INFO L87 Difference]: Start difference. First operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 13:10:33,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:10:33,313 INFO L93 Difference]: Finished difference Result 308 states and 417 transitions. [2022-12-14 13:10:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:10:33,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-12-14 13:10:33,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:10:33,327 INFO L225 Difference]: With dead ends: 308 [2022-12-14 13:10:33,327 INFO L226 Difference]: Without dead ends: 197 [2022-12-14 13:10:33,332 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 13:10:33,335 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:10:33,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:10:33,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-12-14 13:10:33,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-12-14 13:10:33,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 115 states have internal predecessors, (143), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-14 13:10:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 266 transitions. [2022-12-14 13:10:33,386 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 266 transitions. Word has length 63 [2022-12-14 13:10:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:10:33,387 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 266 transitions. [2022-12-14 13:10:33,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 13:10:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 266 transitions. [2022-12-14 13:10:33,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 13:10:33,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:10:33,391 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] [2022-12-14 13:10:33,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:10:33,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:10:33,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:10:33,392 INFO L85 PathProgramCache]: Analyzing trace with hash -957022820, now seen corresponding path program 1 times [2022-12-14 13:10:33,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:10:33,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866963751] [2022-12-14 13:10:33,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:10:33,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:10:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:10:33,523 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 13:10:33,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:10:33,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866963751] [2022-12-14 13:10:33,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866963751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:10:33,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:10:33,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:10:33,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994308719] [2022-12-14 13:10:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:10:33,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:10:33,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:10:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:10:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:10:33,527 INFO L87 Difference]: Start difference. First operand 197 states and 266 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 13:10:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:10:33,639 INFO L93 Difference]: Finished difference Result 304 states and 402 transitions. [2022-12-14 13:10:33,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:10:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-12-14 13:10:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:10:33,642 INFO L225 Difference]: With dead ends: 304 [2022-12-14 13:10:33,643 INFO L226 Difference]: Without dead ends: 199 [2022-12-14 13:10:33,644 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 13:10:33,645 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:10:33,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:10:33,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-12-14 13:10:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-12-14 13:10:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 117 states have internal predecessors, (145), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-14 13:10:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 268 transitions. [2022-12-14 13:10:33,665 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 268 transitions. Word has length 64 [2022-12-14 13:10:33,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:10:33,665 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 268 transitions. [2022-12-14 13:10:33,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 13:10:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 268 transitions. [2022-12-14 13:10:33,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 13:10:33,667 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:10:33,667 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] [2022-12-14 13:10:33,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:10:33,667 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:10:33,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:10:33,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1502216908, now seen corresponding path program 1 times [2022-12-14 13:10:33,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:10:33,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880101322] [2022-12-14 13:10:33,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:10:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:10:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:10:33,763 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 13:10:33,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:10:33,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880101322] [2022-12-14 13:10:33,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880101322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:10:33,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:10:33,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:10:33,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814622819] [2022-12-14 13:10:33,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:10:33,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:10:33,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:10:33,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:10:33,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:10:33,765 INFO L87 Difference]: Start difference. First operand 199 states and 268 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 13:10:33,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:10:33,866 INFO L93 Difference]: Finished difference Result 433 states and 603 transitions. [2022-12-14 13:10:33,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:10:33,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-12-14 13:10:33,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:10:33,869 INFO L225 Difference]: With dead ends: 433 [2022-12-14 13:10:33,869 INFO L226 Difference]: Without dead ends: 252 [2022-12-14 13:10:33,870 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 13:10:33,871 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 59 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:10:33,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 473 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:10:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-12-14 13:10:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2022-12-14 13:10:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 151 states have internal predecessors, (200), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-14 13:10:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 351 transitions. [2022-12-14 13:10:33,893 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 351 transitions. Word has length 69 [2022-12-14 13:10:33,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:10:33,893 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 351 transitions. [2022-12-14 13:10:33,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 13:10:33,894 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 351 transitions. [2022-12-14 13:10:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 13:10:33,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:10:33,896 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] [2022-12-14 13:10:33,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:10:33,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:10:33,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:10:33,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1804540581, now seen corresponding path program 1 times [2022-12-14 13:10:33,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:10:33,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483384492] [2022-12-14 13:10:33,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:10:33,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:10:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:10:34,071 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 13:10:34,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:10:34,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483384492] [2022-12-14 13:10:34,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483384492] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:10:34,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947993729] [2022-12-14 13:10:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:10:34,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:10:34,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:10:34,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:10:34,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:10:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:10:34,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:10:34,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:10:34,326 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 13:10:34,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:10:34,379 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 13:10:34,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947993729] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:10:34,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1902847492] [2022-12-14 13:10:34,396 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-12-14 13:10:34,396 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:10:34,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:10:34,404 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:10:34,405 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:11:12,513 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 13:11:12,842 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:11:13,174 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 471 for LOIs [2022-12-14 13:11:44,355 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-12-14 13:11:44,676 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-12-14 13:11:48,696 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 268 for LOIs [2022-12-14 13:11:52,870 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 239 for LOIs [2022-12-14 13:11:52,912 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-12-14 13:11:53,589 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 439 for LOIs [2022-12-14 13:11:53,895 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:13:42,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1902847492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:13:42,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:13:42,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-12-14 13:13:42,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137042141] [2022-12-14 13:13:42,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:13:42,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-14 13:13:42,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:13:42,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-14 13:13:42,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=2418, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 13:13:42,780 INFO L87 Difference]: Start difference. First operand 247 states and 351 transitions. Second operand has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 13:14:29,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:14:29,713 INFO L93 Difference]: Finished difference Result 635 states and 970 transitions. [2022-12-14 13:14:29,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-14 13:14:29,714 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 70 [2022-12-14 13:14:29,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:14:29,716 INFO L225 Difference]: With dead ends: 635 [2022-12-14 13:14:29,716 INFO L226 Difference]: Without dead ends: 406 [2022-12-14 13:14:29,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 136.5s TimeCoverageRelationStatistics Valid=207, Invalid=3575, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 13:14:29,718 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 288 mSDsluCounter, 5531 mSDsCounter, 0 mSdLazyCounter, 6626 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 5799 SdHoareTripleChecker+Invalid, 6659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 6626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:14:29,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 5799 Invalid, 6659 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [33 Valid, 6626 Invalid, 0 Unknown, 0 Unchecked, 18.8s Time] [2022-12-14 13:14:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-12-14 13:14:29,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 301. [2022-12-14 13:14:29,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 188 states have (on average 1.351063829787234) internal successors, (254), 192 states have internal predecessors, (254), 84 states have call successors, (84), 31 states have call predecessors, (84), 28 states have return successors, (83), 79 states have call predecessors, (83), 83 states have call successors, (83) [2022-12-14 13:14:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 421 transitions. [2022-12-14 13:14:29,836 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 421 transitions. Word has length 70 [2022-12-14 13:14:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:14:29,837 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 421 transitions. [2022-12-14 13:14:29,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 13:14:29,837 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 421 transitions. [2022-12-14 13:14:29,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 13:14:29,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:14:29,838 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] [2022-12-14 13:14:29,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:14:30,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:14:30,040 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:14:30,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:14:30,042 INFO L85 PathProgramCache]: Analyzing trace with hash 591351778, now seen corresponding path program 1 times [2022-12-14 13:14:30,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:14:30,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454056674] [2022-12-14 13:14:30,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:14:30,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:14:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:14:30,113 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:14:30,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:14:30,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454056674] [2022-12-14 13:14:30,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454056674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:14:30,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:14:30,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:14:30,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007669313] [2022-12-14 13:14:30,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:14:30,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:14:30,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:14:30,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:14:30,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:14:30,115 INFO L87 Difference]: Start difference. First operand 301 states and 421 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:14:30,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:14:30,425 INFO L93 Difference]: Finished difference Result 704 states and 1022 transitions. [2022-12-14 13:14:30,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:14:30,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-12-14 13:14:30,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:14:30,429 INFO L225 Difference]: With dead ends: 704 [2022-12-14 13:14:30,429 INFO L226 Difference]: Without dead ends: 429 [2022-12-14 13:14:30,430 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 13:14:30,431 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 57 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:14:30,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 478 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:14:30,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-12-14 13:14:30,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 422. [2022-12-14 13:14:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 278 states have (on average 1.4172661870503598) internal successors, (394), 282 states have internal predecessors, (394), 115 states have call successors, (115), 31 states have call predecessors, (115), 28 states have return successors, (114), 110 states have call predecessors, (114), 114 states have call successors, (114) [2022-12-14 13:14:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 623 transitions. [2022-12-14 13:14:30,614 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 623 transitions. Word has length 75 [2022-12-14 13:14:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:14:30,615 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 623 transitions. [2022-12-14 13:14:30,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:14:30,615 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 623 transitions. [2022-12-14 13:14:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 13:14:30,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:14:30,616 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] [2022-12-14 13:14:30,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:14:30,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:14:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:14:30,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1487686122, now seen corresponding path program 1 times [2022-12-14 13:14:30,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:14:30,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845438072] [2022-12-14 13:14:30,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:14:30,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:14:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:14:30,701 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 13:14:30,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:14:30,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845438072] [2022-12-14 13:14:30,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845438072] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:14:30,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150340569] [2022-12-14 13:14:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:14:30,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:14:30,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:14:30,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:14:30,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:14:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:14:30,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:14:30,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:14:30,920 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 13:14:30,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:14:30,955 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 13:14:30,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150340569] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:14:30,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [902438033] [2022-12-14 13:14:30,958 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 13:14:30,958 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:14:30,958 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:14:30,958 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:14:30,959 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:15:15,943 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 13:15:16,274 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 13:15:16,595 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:16:01,213 WARN L233 SmtUtils]: Spent 11.38s on a formula simplification. DAG size of input: 583 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:16:23,240 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 584 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:16:23,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [902438033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:16:23,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:16:23,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 13:16:23,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014608293] [2022-12-14 13:16:23,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:16:23,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 13:16:23,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:16:23,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 13:16:23,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 13:16:23,401 INFO L87 Difference]: Start difference. First operand 422 states and 623 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 13:16:34,320 WARN L233 SmtUtils]: Spent 9.56s on a formula simplification. DAG size of input: 475 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:16:58,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:16:58,425 INFO L93 Difference]: Finished difference Result 836 states and 1273 transitions. [2022-12-14 13:16:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 13:16:58,426 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2022-12-14 13:16:58,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:16:58,427 INFO L225 Difference]: With dead ends: 836 [2022-12-14 13:16:58,428 INFO L226 Difference]: Without dead ends: 507 [2022-12-14 13:16:58,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 200 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 94.9s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 13:16:58,429 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 185 mSDsluCounter, 3292 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:16:58,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 3515 Invalid, 2008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 13:16:58,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-12-14 13:16:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 452. [2022-12-14 13:16:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 306 states have (on average 1.4215686274509804) internal successors, (435), 310 states have internal predecessors, (435), 116 states have call successors, (116), 32 states have call predecessors, (116), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) [2022-12-14 13:16:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 666 transitions. [2022-12-14 13:16:58,833 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 666 transitions. Word has length 76 [2022-12-14 13:16:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:16:58,833 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 666 transitions. [2022-12-14 13:16:58,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 13:16:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 666 transitions. [2022-12-14 13:16:58,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 13:16:58,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:16:58,835 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] [2022-12-14 13:16:58,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:16:59,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:16:59,037 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:16:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:16:59,038 INFO L85 PathProgramCache]: Analyzing trace with hash 462784423, now seen corresponding path program 1 times [2022-12-14 13:16:59,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:16:59,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968072860] [2022-12-14 13:16:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:16:59,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:16:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:16:59,194 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 13:16:59,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:16:59,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968072860] [2022-12-14 13:16:59,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968072860] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:16:59,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122290268] [2022-12-14 13:16:59,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:16:59,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:16:59,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:16:59,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:16:59,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:16:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:16:59,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:16:59,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:16:59,454 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 13:16:59,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:16:59,501 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 13:16:59,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122290268] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:16:59,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [584175231] [2022-12-14 13:16:59,505 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 13:16:59,505 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:16:59,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:16:59,505 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:16:59,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:18:39,703 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:18:40,031 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 13:18:40,342 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 13:18:40,650 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 13:18:42,071 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 13:18:42,132 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 13:18:42,166 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:18:42,503 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-12-14 13:18:43,121 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 240 for LOIs [2022-12-14 13:18:46,619 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-12-14 13:18:46,689 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 220 for LOIs [2022-12-14 13:18:46,796 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 202 for LOIs [2022-12-14 13:18:46,828 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:20:19,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [584175231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:20:19,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:20:19,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [4, 4, 4] total 61 [2022-12-14 13:20:19,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719935873] [2022-12-14 13:20:19,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:20:19,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-14 13:20:19,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:20:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-14 13:20:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=3490, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 13:20:19,443 INFO L87 Difference]: Start difference. First operand 452 states and 666 transitions. Second operand has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 13:21:05,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:21:05,763 INFO L93 Difference]: Finished difference Result 951 states and 1434 transitions. [2022-12-14 13:21:05,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-14 13:21:05,764 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 79 [2022-12-14 13:21:05,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:21:05,766 INFO L225 Difference]: With dead ends: 951 [2022-12-14 13:21:05,766 INFO L226 Difference]: Without dead ends: 622 [2022-12-14 13:21:05,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 115.0s TimeCoverageRelationStatistics Valid=241, Invalid=4871, Unknown=0, NotChecked=0, Total=5112 [2022-12-14 13:21:05,768 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 142 mSDsluCounter, 6570 mSDsCounter, 0 mSdLazyCounter, 8922 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 6828 SdHoareTripleChecker+Invalid, 8940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 8922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:21:05,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 6828 Invalid, 8940 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18 Valid, 8922 Invalid, 0 Unknown, 0 Unchecked, 23.2s Time] [2022-12-14 13:21:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-12-14 13:21:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 533. [2022-12-14 13:21:06,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 369 states have (on average 1.4146341463414633) internal successors, (522), 374 states have internal predecessors, (522), 127 states have call successors, (127), 42 states have call predecessors, (127), 36 states have return successors, (126), 118 states have call predecessors, (126), 126 states have call successors, (126) [2022-12-14 13:21:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 775 transitions. [2022-12-14 13:21:06,108 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 775 transitions. Word has length 79 [2022-12-14 13:21:06,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:21:06,108 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 775 transitions. [2022-12-14 13:21:06,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 13:21:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 775 transitions. [2022-12-14 13:21:06,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 13:21:06,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:21:06,111 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] [2022-12-14 13:21:06,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:21:06,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:21:06,312 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:21:06,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:21:06,313 INFO L85 PathProgramCache]: Analyzing trace with hash -180154763, now seen corresponding path program 1 times [2022-12-14 13:21:06,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:21:06,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803894368] [2022-12-14 13:21:06,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:06,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:21:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:06,414 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 13:21:06,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:21:06,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803894368] [2022-12-14 13:21:06,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803894368] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:21:06,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703992341] [2022-12-14 13:21:06,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:06,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:21:06,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:21:06,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:21:06,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25466e-cbcf-4bda-8a14-662dbc664212/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:21:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:06,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:21:06,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:21:06,634 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 13:21:06,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:21:06,676 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 13:21:06,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703992341] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:21:06,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [848384143] [2022-12-14 13:21:06,680 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-12-14 13:21:06,680 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:21:06,680 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:21:06,680 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:21:06,681 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:22:16,696 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:22:17,018 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 231 for LOIs [2022-12-14 13:22:17,079 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 230 for LOIs [2022-12-14 13:22:17,141 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 13:22:18,557 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 13:22:18,618 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 13:22:18,656 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:22:18,981 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-12-14 13:22:19,620 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 240 for LOIs [2022-12-14 13:22:26,061 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 217 for LOIs [2022-12-14 13:22:26,098 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-12-14 13:22:26,132 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 409 for LOIs [2022-12-14 13:22:29,219 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 236 for LOIs [2022-12-14 13:22:29,266 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 200 for LOIs [2022-12-14 13:22:29,297 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:23:25,176 WARN L233 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 430 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:23:58,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [848384143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:23:58,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:23:58,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 13:23:58,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338142079] [2022-12-14 13:23:58,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:23:58,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 13:23:58,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:23:58,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 13:23:58,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=4251, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 13:23:58,344 INFO L87 Difference]: Start difference. First operand 533 states and 775 transitions. Second operand has 62 states, 37 states have (on average 1.135135135135135) internal successors, (42), 34 states have internal predecessors, (42), 20 states have call successors, (20), 15 states have call predecessors, (20), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)