./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product21.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_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/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_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/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_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/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 f4fee54ccb193d38705f292ec1df682c5f160e2b5ba09e341cb9a12b4e6b2606 --- 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 09:32:06,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:32:06,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:32:06,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:32:06,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:32:06,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:32:06,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:32:06,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:32:06,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:32:06,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:32:06,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:32:06,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:32:06,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:32:06,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:32:06,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:32:06,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:32:06,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:32:06,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:32:06,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:32:06,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:32:06,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:32:06,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:32:06,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:32:06,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:32:06,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:32:06,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:32:06,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:32:06,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:32:06,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:32:06,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:32:06,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:32:06,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:32:06,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:32:06,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:32:06,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:32:06,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:32:06,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:32:06,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:32:06,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:32:06,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:32:06,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:32:06,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:32:06,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:32:06,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:32:06,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:32:06,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:32:06,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:32:06,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:32:06,202 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:32:06,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:32:06,202 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:32:06,202 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:32:06,203 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:32:06,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:32:06,203 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:32:06,203 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:32:06,203 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:32:06,204 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:32:06,204 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:32:06,204 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:32:06,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:32:06,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:32:06,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:32:06,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:32:06,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:32:06,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:32:06,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:32:06,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:32:06,206 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:32:06,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:32:06,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:32:06,207 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:32:06,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:32:06,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:32:06,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:32:06,207 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_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4fee54ccb193d38705f292ec1df682c5f160e2b5ba09e341cb9a12b4e6b2606 [2022-12-14 09:32:06,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:32:06,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:32:06,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:32:06,434 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:32:06,434 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:32:06,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product21.cil.c [2022-12-14 09:32:09,036 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:32:09,271 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:32:09,272 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/sv-benchmarks/c/product-lines/email_spec9_product21.cil.c [2022-12-14 09:32:09,287 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/data/8efe88c1c/2e9c723848b04c27bca2a758d306a018/FLAGcbf4bf288 [2022-12-14 09:32:09,300 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/data/8efe88c1c/2e9c723848b04c27bca2a758d306a018 [2022-12-14 09:32:09,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:32:09,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:32:09,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:32:09,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:32:09,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:32:09,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:09,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359ab37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09, skipping insertion in model container [2022-12-14 09:32:09,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:09,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:32:09,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:32:09,534 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,545 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,546 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,548 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,565 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,584 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_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/sv-benchmarks/c/product-lines/email_spec9_product21.cil.c[10263,10276] [2022-12-14 09:32:09,706 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,707 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,743 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,745 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,748 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:32:09,799 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:32:09,810 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,813 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,814 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,815 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,820 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,825 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_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/sv-benchmarks/c/product-lines/email_spec9_product21.cil.c[10263,10276] [2022-12-14 09:32:09,860 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,861 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,868 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,868 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,870 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:32:09,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:32:09,908 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:32:09,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09 WrapperNode [2022-12-14 09:32:09,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:32:09,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:32:09,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:32:09,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:32:09,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:09,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:09,981 INFO L138 Inliner]: procedures = 129, calls = 220, calls flagged for inlining = 58, calls inlined = 55, statements flattened = 1072 [2022-12-14 09:32:09,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:32:09,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:32:09,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:32:09,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:32:09,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:09,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:09,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:09,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:10,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:10,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:10,029 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:10,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:10,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:32:10,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:32:10,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:32:10,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:32:10,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (1/1) ... [2022-12-14 09:32:10,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:32:10,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:32:10,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:32:10,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:32:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 09:32:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 09:32:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 09:32:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 09:32:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 09:32:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 09:32:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 09:32:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 09:32:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 09:32:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 09:32:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 09:32:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 09:32:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 09:32:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 09:32:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 09:32:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 09:32:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 09:32:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 09:32:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 09:32:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 09:32:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 09:32:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:32:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 09:32:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 09:32:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 09:32:10,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 09:32:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 09:32:10,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 09:32:10,116 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 09:32:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 09:32:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 09:32:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 09:32:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 09:32:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 09:32:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 09:32:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 09:32:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 09:32:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 09:32:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 09:32:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 09:32:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:32:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 09:32:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 09:32:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 09:32:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 09:32:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:32:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:32:10,297 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:32:10,299 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:32:10,884 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:32:11,200 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:32:11,200 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:32:11,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:32:11 BoogieIcfgContainer [2022-12-14 09:32:11,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:32:11,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:32:11,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:32:11,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:32:11,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:32:09" (1/3) ... [2022-12-14 09:32:11,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f004ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:32:11, skipping insertion in model container [2022-12-14 09:32:11,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:32:09" (2/3) ... [2022-12-14 09:32:11,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f004ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:32:11, skipping insertion in model container [2022-12-14 09:32:11,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:32:11" (3/3) ... [2022-12-14 09:32:11,208 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product21.cil.c [2022-12-14 09:32:11,222 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:32:11,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:32:11,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:32:11,264 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;@1d681e68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:32:11,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:32:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-14 09:32:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 09:32:11,280 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:32:11,280 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 09:32:11,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:32:11,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:32:11,286 INFO L85 PathProgramCache]: Analyzing trace with hash 77031352, now seen corresponding path program 1 times [2022-12-14 09:32:11,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:32:11,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348301688] [2022-12-14 09:32:11,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:11,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:32:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:11,500 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 09:32:11,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:32:11,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348301688] [2022-12-14 09:32:11,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348301688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:32:11,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:32:11,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:32:11,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997760461] [2022-12-14 09:32:11,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:32:11,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:32:11,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:32:11,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:32:11,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:32:11,529 INFO L87 Difference]: Start difference. First operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) 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 09:32:11,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:32:11,641 INFO L93 Difference]: Finished difference Result 278 states and 379 transitions. [2022-12-14 09:32:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:32:11,643 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 09:32:11,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:32:11,650 INFO L225 Difference]: With dead ends: 278 [2022-12-14 09:32:11,650 INFO L226 Difference]: Without dead ends: 182 [2022-12-14 09:32:11,653 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 09:32:11,655 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:32:11,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:32:11,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-12-14 09:32:11,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-12-14 09:32:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 09:32:11,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2022-12-14 09:32:11,692 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 63 [2022-12-14 09:32:11,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:32:11,693 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2022-12-14 09:32:11,694 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 09:32:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2022-12-14 09:32:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 09:32:11,696 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:32:11,696 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 09:32:11,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:32:11,696 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:32:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:32:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 449241628, now seen corresponding path program 1 times [2022-12-14 09:32:11,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:32:11,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016660329] [2022-12-14 09:32:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:11,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:32:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:11,827 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 09:32:11,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:32:11,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016660329] [2022-12-14 09:32:11,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016660329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:32:11,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:32:11,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:32:11,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576949670] [2022-12-14 09:32:11,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:32:11,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:32:11,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:32:11,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:32:11,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:32:11,831 INFO L87 Difference]: Start difference. First operand 182 states and 247 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 09:32:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:32:11,938 INFO L93 Difference]: Finished difference Result 274 states and 364 transitions. [2022-12-14 09:32:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:32:11,939 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 09:32:11,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:32:11,940 INFO L225 Difference]: With dead ends: 274 [2022-12-14 09:32:11,941 INFO L226 Difference]: Without dead ends: 184 [2022-12-14 09:32:11,941 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 09:32:11,942 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:32:11,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:32:11,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-12-14 09:32:11,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-12-14 09:32:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 109 states have internal predecessors, (136), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 09:32:11,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2022-12-14 09:32:11,955 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 64 [2022-12-14 09:32:11,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:32:11,955 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2022-12-14 09:32:11,955 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 09:32:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2022-12-14 09:32:11,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 09:32:11,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:32:11,957 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 09:32:11,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:32:11,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:32:11,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:32:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash 120381539, now seen corresponding path program 1 times [2022-12-14 09:32:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:32:11,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478569474] [2022-12-14 09:32:11,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:32:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:12,034 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 09:32:12,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:32:12,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478569474] [2022-12-14 09:32:12,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478569474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:32:12,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:32:12,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:32:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874709085] [2022-12-14 09:32:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:32:12,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:32:12,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:32:12,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:32:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:32:12,036 INFO L87 Difference]: Start difference. First operand 184 states and 249 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 09:32:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:32:12,137 INFO L93 Difference]: Finished difference Result 403 states and 565 transitions. [2022-12-14 09:32:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:32:12,138 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 09:32:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:32:12,141 INFO L225 Difference]: With dead ends: 403 [2022-12-14 09:32:12,141 INFO L226 Difference]: Without dead ends: 237 [2022-12-14 09:32:12,142 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 09:32:12,144 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 59 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:32:12,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 436 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:32:12,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-12-14 09:32:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2022-12-14 09:32:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 143 states have internal predecessors, (191), 71 states have call successors, (71), 21 states have call predecessors, (71), 21 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 09:32:12,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 332 transitions. [2022-12-14 09:32:12,175 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 332 transitions. Word has length 69 [2022-12-14 09:32:12,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:32:12,176 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 332 transitions. [2022-12-14 09:32:12,176 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 09:32:12,176 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 332 transitions. [2022-12-14 09:32:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 09:32:12,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:32:12,180 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 09:32:12,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:32:12,181 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:32:12,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:32:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash -653285474, now seen corresponding path program 1 times [2022-12-14 09:32:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:32:12,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166654899] [2022-12-14 09:32:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:12,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:32:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:12,344 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 09:32:12,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:32:12,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166654899] [2022-12-14 09:32:12,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166654899] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:32:12,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815805171] [2022-12-14 09:32:12,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:12,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:32:12,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:32:12,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:32:12,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:32:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:12,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:32:12,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:32:12,631 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 09:32:12,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:32:12,686 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 09:32:12,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815805171] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:32:12,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [584629727] [2022-12-14 09:32:12,708 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-12-14 09:32:12,709 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:32:12,713 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:32:12,718 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:32:12,718 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:32:34,654 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:32:34,934 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:32:35,222 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:33:19,942 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 570 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:33:25,233 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 572 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:33:30,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [584629727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:33:30,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:33:30,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 09:33:30,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651045175] [2022-12-14 09:33:30,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:33:30,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 09:33:30,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:33:30,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 09:33:30,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 09:33:30,647 INFO L87 Difference]: Start difference. First operand 232 states and 332 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 09:33:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:33:35,901 INFO L93 Difference]: Finished difference Result 511 states and 764 transitions. [2022-12-14 09:33:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 09:33:35,902 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2022-12-14 09:33:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:33:35,904 INFO L225 Difference]: With dead ends: 511 [2022-12-14 09:33:35,904 INFO L226 Difference]: Without dead ends: 297 [2022-12-14 09:33:35,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 55.4s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 09:33:35,906 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 114 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:33:35,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 3065 Invalid, 1822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 09:33:35,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-12-14 09:33:35,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 255. [2022-12-14 09:33:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 161 states have (on average 1.391304347826087) internal successors, (224), 165 states have internal predecessors, (224), 71 states have call successors, (71), 22 states have call predecessors, (71), 22 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 09:33:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 365 transitions. [2022-12-14 09:33:35,979 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 365 transitions. Word has length 70 [2022-12-14 09:33:35,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:33:35,980 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 365 transitions. [2022-12-14 09:33:35,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 09:33:35,980 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 365 transitions. [2022-12-14 09:33:35,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 09:33:35,982 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:33:35,982 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 09:33:35,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:33:36,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:33:36,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:33:36,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:33:36,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1735737774, now seen corresponding path program 1 times [2022-12-14 09:33:36,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:33:36,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167784319] [2022-12-14 09:33:36,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:33:36,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:33:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:33:36,272 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 09:33:36,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:33:36,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167784319] [2022-12-14 09:33:36,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167784319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:33:36,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:33:36,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:33:36,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753730480] [2022-12-14 09:33:36,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:33:36,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:33:36,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:33:36,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:33:36,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:33:36,274 INFO L87 Difference]: Start difference. First operand 255 states and 365 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 09:33:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:33:36,494 INFO L93 Difference]: Finished difference Result 613 states and 910 transitions. [2022-12-14 09:33:36,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:33:36,495 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 09:33:36,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:33:36,498 INFO L225 Difference]: With dead ends: 613 [2022-12-14 09:33:36,498 INFO L226 Difference]: Without dead ends: 382 [2022-12-14 09:33:36,500 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 09:33:36,500 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 57 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:33:36,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 443 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:33:36,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-12-14 09:33:36,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 377. [2022-12-14 09:33:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 252 states have (on average 1.4444444444444444) internal successors, (364), 256 states have internal predecessors, (364), 102 states have call successors, (102), 22 states have call predecessors, (102), 22 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2022-12-14 09:33:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 567 transitions. [2022-12-14 09:33:36,612 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 567 transitions. Word has length 75 [2022-12-14 09:33:36,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:33:36,612 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 567 transitions. [2022-12-14 09:33:36,612 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 09:33:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 567 transitions. [2022-12-14 09:33:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 09:33:36,614 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:33:36,614 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 09:33:36,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:33:36,615 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:33:36,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:33:36,615 INFO L85 PathProgramCache]: Analyzing trace with hash 945508908, now seen corresponding path program 1 times [2022-12-14 09:33:36,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:33:36,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105048115] [2022-12-14 09:33:36,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:33:36,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:33:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:33:36,692 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 09:33:36,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:33:36,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105048115] [2022-12-14 09:33:36,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105048115] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:33:36,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655173807] [2022-12-14 09:33:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:33:36,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:33:36,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:33:36,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:33:36,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:33:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:33:36,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:33:36,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:33:36,903 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 09:33:36,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:33:36,947 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 09:33:36,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655173807] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:33:36,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496036157] [2022-12-14 09:33:36,951 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 09:33:36,951 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:33:36,952 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:33:36,952 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:33:36,952 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:34:08,036 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:34:08,319 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 09:34:08,592 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:34:54,776 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 570 DAG size of output: 381 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:35:13,133 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 566 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:35:15,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1496036157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:15,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:35:15,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 09:35:15,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475452090] [2022-12-14 09:35:15,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:15,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 09:35:15,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:15,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 09:35:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:35:15,293 INFO L87 Difference]: Start difference. First operand 377 states and 567 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 09:35:42,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:42,269 INFO L93 Difference]: Finished difference Result 807 states and 1257 transitions. [2022-12-14 09:35:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 09:35:42,269 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 09:35:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:42,271 INFO L225 Difference]: With dead ends: 807 [2022-12-14 09:35:42,272 INFO L226 Difference]: Without dead ends: 493 [2022-12-14 09:35:42,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 86.7s TimeCoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 09:35:42,273 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 226 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:42,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 3100 Invalid, 2201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 09:35:42,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-12-14 09:35:42,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 393. [2022-12-14 09:35:42,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 264 states have (on average 1.4431818181818181) internal successors, (381), 270 states have internal predecessors, (381), 105 states have call successors, (105), 23 states have call predecessors, (105), 23 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104) [2022-12-14 09:35:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 590 transitions. [2022-12-14 09:35:42,431 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 590 transitions. Word has length 76 [2022-12-14 09:35:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:42,431 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 590 transitions. [2022-12-14 09:35:42,432 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 09:35:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 590 transitions. [2022-12-14 09:35:42,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 09:35:42,433 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:42,433 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 09:35:42,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:35:42,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:35:42,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:42,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1318385015, now seen corresponding path program 1 times [2022-12-14 09:35:42,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:42,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198111872] [2022-12-14 09:35:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:42,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:42,774 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 09:35:42,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:42,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198111872] [2022-12-14 09:35:42,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198111872] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:35:42,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428277855] [2022-12-14 09:35:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:42,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:35:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:35:42,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:35:42,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:35:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:43,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:35:43,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:35:43,026 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 09:35:43,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:35:43,060 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 09:35:43,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428277855] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:35:43,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [629760267] [2022-12-14 09:35:43,064 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 09:35:43,064 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:35:43,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:35:43,064 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:35:43,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:36:36,271 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:36:36,547 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 231 for LOIs [2022-12-14 09:36:36,605 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 230 for LOIs [2022-12-14 09:36:36,662 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 09:36:37,844 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 09:36:37,899 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 09:36:37,928 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:36:38,220 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 232 for LOIs [2022-12-14 09:36:38,748 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 240 for LOIs [2022-12-14 09:36:41,695 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-12-14 09:36:41,724 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 220 for LOIs [2022-12-14 09:36:41,816 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 202 for LOIs [2022-12-14 09:36:41,843 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:37:55,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [629760267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:37:55,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:37:55,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [4, 4, 4] total 61 [2022-12-14 09:37:55,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933589503] [2022-12-14 09:37:55,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:37:55,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-14 09:37:55,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:37:55,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-14 09:37:55,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=3502, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 09:37:55,250 INFO L87 Difference]: Start difference. First operand 393 states and 590 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 09:38:39,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:38:39,674 INFO L93 Difference]: Finished difference Result 886 states and 1373 transitions. [2022-12-14 09:38:39,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-14 09:38:39,675 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 09:38:39,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:38:39,677 INFO L225 Difference]: With dead ends: 886 [2022-12-14 09:38:39,677 INFO L226 Difference]: Without dead ends: 572 [2022-12-14 09:38:39,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1161 ImplicationChecksByTransitivity, 94.9s TimeCoverageRelationStatistics Valid=267, Invalid=5433, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 09:38:39,679 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 248 mSDsluCounter, 5894 mSDsCounter, 0 mSdLazyCounter, 8775 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 6136 SdHoareTripleChecker+Invalid, 8806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 8775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:38:39,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 6136 Invalid, 8806 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [31 Valid, 8775 Invalid, 0 Unknown, 0 Unchecked, 22.2s Time] [2022-12-14 09:38:39,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-12-14 09:38:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 479. [2022-12-14 09:38:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 331 states have (on average 1.43202416918429) internal successors, (474), 338 states have internal predecessors, (474), 117 states have call successors, (117), 33 states have call predecessors, (117), 30 states have return successors, (116), 109 states have call predecessors, (116), 116 states have call successors, (116) [2022-12-14 09:38:39,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 707 transitions. [2022-12-14 09:38:39,943 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 707 transitions. Word has length 79 [2022-12-14 09:38:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:38:39,943 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 707 transitions. [2022-12-14 09:38:39,944 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 09:38:39,944 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 707 transitions. [2022-12-14 09:38:39,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 09:38:39,945 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:38:39,945 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 09:38:39,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:38:40,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:38:40,145 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:38:40,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:38:40,146 INFO L85 PathProgramCache]: Analyzing trace with hash -206617585, now seen corresponding path program 1 times [2022-12-14 09:38:40,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:38:40,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848573499] [2022-12-14 09:38:40,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:38:40,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:38:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:38:40,234 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 09:38:40,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:38:40,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848573499] [2022-12-14 09:38:40,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848573499] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:38:40,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712539664] [2022-12-14 09:38:40,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:38:40,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:38:40,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:38:40,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:38:40,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:38:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:38:40,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1170 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:38:40,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:38:40,485 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 09:38:40,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:38:40,533 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 09:38:40,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712539664] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:38:40,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [489868730] [2022-12-14 09:38:40,537 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-12-14 09:38:40,537 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:38:40,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:38:40,537 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:38:40,538 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:41,907 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:39:42,181 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 09:39:42,448 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 09:39:42,716 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 09:39:43,908 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 09:39:43,962 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 09:39:43,991 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:39:44,272 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-12-14 09:39:44,805 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 240 for LOIs [2022-12-14 09:39:50,315 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 217 for LOIs [2022-12-14 09:39:50,347 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-12-14 09:39:50,377 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 409 for LOIs [2022-12-14 09:39:52,982 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 236 for LOIs [2022-12-14 09:39:53,024 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 202 for LOIs [2022-12-14 09:39:53,066 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:41:12,881 WARN L233 SmtUtils]: Spent 6.68s 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 09:41:47,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [489868730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:47,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:41:47,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 09:41:47,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446543498] [2022-12-14 09:41:47,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:47,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 09:41:47,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:47,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 09:41:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=4239, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 09:41:47,730 INFO L87 Difference]: Start difference. First operand 479 states and 707 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) [2022-12-14 09:42:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:28,981 INFO L93 Difference]: Finished difference Result 668 states and 988 transitions. [2022-12-14 09:42:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-12-14 09:42:28,982 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 85 [2022-12-14 09:42:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:28,985 INFO L225 Difference]: With dead ends: 668 [2022-12-14 09:42:28,985 INFO L226 Difference]: Without dead ends: 585 [2022-12-14 09:42:28,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1197 ImplicationChecksByTransitivity, 129.4s TimeCoverageRelationStatistics Valid=246, Invalid=5606, Unknown=0, NotChecked=0, Total=5852 [2022-12-14 09:42:28,988 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 217 mSDsluCounter, 6643 mSDsCounter, 0 mSdLazyCounter, 10157 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 6894 SdHoareTripleChecker+Invalid, 10177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 10157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:28,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 6894 Invalid, 10177 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [20 Valid, 10157 Invalid, 0 Unknown, 0 Unchecked, 25.7s Time] [2022-12-14 09:42:28,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-12-14 09:42:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 487. [2022-12-14 09:42:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 334 states have (on average 1.4281437125748504) internal successors, (477), 342 states have internal predecessors, (477), 119 states have call successors, (119), 36 states have call predecessors, (119), 33 states have return successors, (118), 111 states have call predecessors, (118), 118 states have call successors, (118) [2022-12-14 09:42:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 714 transitions. [2022-12-14 09:42:29,327 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 714 transitions. Word has length 85 [2022-12-14 09:42:29,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:29,327 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 714 transitions. [2022-12-14 09:42:29,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-12-14 09:42:29,327 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 714 transitions. [2022-12-14 09:42:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 09:42:29,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:29,328 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] [2022-12-14 09:42:29,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:42:29,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 09:42:29,529 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:42:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:29,529 INFO L85 PathProgramCache]: Analyzing trace with hash 834353814, now seen corresponding path program 1 times [2022-12-14 09:42:29,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:29,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78984732] [2022-12-14 09:42:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:29,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:29,597 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 09:42:29,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:29,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78984732] [2022-12-14 09:42:29,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78984732] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:42:29,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885304082] [2022-12-14 09:42:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:42:29,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:42:29,598 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:42:29,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0afd53eb-2439-4d33-a5c5-22a1c6e91e20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:42:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:29,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:42:29,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:42:29,792 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 09:42:29,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:42:29,833 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 09:42:29,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885304082] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:42:29,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [901442307] [2022-12-14 09:42:29,835 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 09:42:29,835 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:42:29,836 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:42:29,836 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:42:29,836 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:43:02,566 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:43:02,855 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:43:03,137 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-12-14 09:43:04,604 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 09:43:04,641 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 256 for LOIs [2022-12-14 09:43:05,279 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 266 for LOIs [2022-12-14 09:43:08,824 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 237 for LOIs [2022-12-14 09:43:08,860 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 474 for LOIs [2022-12-14 09:43:11,858 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 226 for LOIs [2022-12-14 09:43:11,891 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:43:58,665 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 574 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:44:09,679 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 572 DAG size of output: 416 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:44:54,531 WARN L233 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 474 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:45:20,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [901442307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:20,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:45:20,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 09:45:20,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888609197] [2022-12-14 09:45:20,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:20,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 09:45:20,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:20,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 09:45:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=3206, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 09:45:20,530 INFO L87 Difference]: Start difference. First operand 487 states and 714 transitions. Second operand has 54 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 36 states have internal predecessors, (45), 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)