./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS --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 3d972cfbd720871733ec5c68c499418657e5e73014fcfa137b0a1c37f3300ef7 --- 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-8393723 [2022-11-19 07:56:40,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:56:40,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:56:40,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:56:40,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:56:40,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:56:40,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:56:40,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:56:40,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:56:40,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:56:40,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:56:40,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:56:40,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:56:40,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:56:40,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:56:40,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:56:40,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:56:40,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:56:40,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:56:40,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:56:40,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:56:40,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:56:40,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:56:40,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:56:40,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:56:40,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:56:40,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:56:40,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:56:40,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:56:40,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:56:40,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:56:40,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:56:40,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:56:40,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:56:40,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:56:40,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:56:40,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:56:40,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:56:40,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:56:40,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:56:40,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:56:40,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:56:40,226 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:56:40,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:56:40,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:56:40,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:56:40,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:56:40,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:56:40,229 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:56:40,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:56:40,230 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:56:40,230 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:56:40,231 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:56:40,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:56:40,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:56:40,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:56:40,233 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:56:40,233 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:56:40,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:56:40,233 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:56:40,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:56:40,235 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:56:40,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:56:40,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:56:40,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:56:40,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:56:40,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:56:40,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:56:40,237 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:56:40,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:56:40,238 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:56:40,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:56:40,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:56:40,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:56:40,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:56:40,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:56:40,240 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:56:40,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:56:40,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:56:40,240 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:56:40,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:56:40,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:56:40,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:56:40,241 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_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d972cfbd720871733ec5c68c499418657e5e73014fcfa137b0a1c37f3300ef7 [2022-11-19 07:56:40,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:56:40,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:56:40,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:56:40,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:56:40,616 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:56:40,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec6_product29.cil.c [2022-11-19 07:56:40,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/data/088a8c08f/b6738c6f4fe24a54bf6c910dca3a9510/FLAGbff41ede6 [2022-11-19 07:56:41,303 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:56:41,304 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/sv-benchmarks/c/product-lines/email_spec6_product29.cil.c [2022-11-19 07:56:41,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/data/088a8c08f/b6738c6f4fe24a54bf6c910dca3a9510/FLAGbff41ede6 [2022-11-19 07:56:41,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/data/088a8c08f/b6738c6f4fe24a54bf6c910dca3a9510 [2022-11-19 07:56:41,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:56:41,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:56:41,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:56:41,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:56:41,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:56:41,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:41" (1/1) ... [2022-11-19 07:56:41,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68bffae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:41, skipping insertion in model container [2022-11-19 07:56:41,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:41" (1/1) ... [2022-11-19 07:56:41,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:56:41,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:56:42,263 WARN L234 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_7ed48611-6b80-4b9d-936c-6cd2e52f7266/sv-benchmarks/c/product-lines/email_spec6_product29.cil.c[42927,42940] [2022-11-19 07:56:42,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:56:42,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:56:42,522 WARN L234 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_7ed48611-6b80-4b9d-936c-6cd2e52f7266/sv-benchmarks/c/product-lines/email_spec6_product29.cil.c[42927,42940] [2022-11-19 07:56:42,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:56:42,577 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:56:42,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42 WrapperNode [2022-11-19 07:56:42,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:56:42,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:56:42,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:56:42,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:56:42,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,695 INFO L138 Inliner]: procedures = 132, calls = 234, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 950 [2022-11-19 07:56:42,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:56:42,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:56:42,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:56:42,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:56:42,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:56:42,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:56:42,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:56:42,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:56:42,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (1/1) ... [2022-11-19 07:56:42,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:56:42,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:56:42,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:56:42,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:56:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-19 07:56:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-19 07:56:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 07:56:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 07:56:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 07:56:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 07:56:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 07:56:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 07:56:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 07:56:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 07:56:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 07:56:42,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 07:56:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 07:56:42,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 07:56:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-19 07:56:42,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-19 07:56:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 07:56:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 07:56:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 07:56:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 07:56:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-19 07:56:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-19 07:56:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 07:56:42,872 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 07:56:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 07:56:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 07:56:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 07:56:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 07:56:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 07:56:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:56:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-19 07:56:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-19 07:56:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-19 07:56:42,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-19 07:56:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 07:56:42,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 07:56:42,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 07:56:42,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 07:56:42,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 07:56:42,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 07:56:42,877 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 07:56:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 07:56:42,878 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-19 07:56:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-19 07:56:42,879 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-19 07:56:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-19 07:56:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 07:56:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 07:56:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 07:56:42,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 07:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 07:56:42,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 07:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 07:56:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 07:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 07:56:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 07:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 07:56:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 07:56:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:56:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:56:43,190 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:56:43,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:56:44,259 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:56:44,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:56:44,926 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:56:44,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:44 BoogieIcfgContainer [2022-11-19 07:56:44,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:56:44,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:56:44,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:56:44,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:56:44,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:41" (1/3) ... [2022-11-19 07:56:44,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dffefd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:44, skipping insertion in model container [2022-11-19 07:56:44,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:42" (2/3) ... [2022-11-19 07:56:44,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dffefd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:44, skipping insertion in model container [2022-11-19 07:56:44,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:44" (3/3) ... [2022-11-19 07:56:44,969 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2022-11-19 07:56:44,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:56:44,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:56:45,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:56:45,071 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;@41701d5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:56:45,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:56:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-19 07:56:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-19 07:56:45,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:45,092 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:45,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:56:45,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:45,098 INFO L85 PathProgramCache]: Analyzing trace with hash 329488992, now seen corresponding path program 1 times [2022-11-19 07:56:45,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:45,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671201168] [2022-11-19 07:56:45,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:45,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:56:45,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:45,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671201168] [2022-11-19 07:56:45,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671201168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:45,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:45,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:56:45,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685765179] [2022-11-19 07:56:45,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:45,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:56:45,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:45,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:56:45,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:56:45,556 INFO L87 Difference]: Start difference. First operand has 217 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:56:45,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:45,708 INFO L93 Difference]: Finished difference Result 342 states and 449 transitions. [2022-11-19 07:56:45,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:56:45,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 98 [2022-11-19 07:56:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:45,723 INFO L225 Difference]: With dead ends: 342 [2022-11-19 07:56:45,724 INFO L226 Difference]: Without dead ends: 214 [2022-11-19 07:56:45,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:56:45,732 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:45,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-19 07:56:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-11-19 07:56:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:56:45,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 282 transitions. [2022-11-19 07:56:45,794 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 282 transitions. Word has length 98 [2022-11-19 07:56:45,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:45,796 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 282 transitions. [2022-11-19 07:56:45,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:56:45,796 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 282 transitions. [2022-11-19 07:56:45,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-19 07:56:45,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:45,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:45,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:56:45,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:56:45,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:45,803 INFO L85 PathProgramCache]: Analyzing trace with hash -104098353, now seen corresponding path program 1 times [2022-11-19 07:56:45,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:45,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538408773] [2022-11-19 07:56:45,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:45,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:56:46,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:46,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538408773] [2022-11-19 07:56:46,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538408773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:46,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:46,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:56:46,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110640235] [2022-11-19 07:56:46,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:46,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:46,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:46,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:46,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:46,203 INFO L87 Difference]: Start difference. First operand 214 states and 282 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:56:46,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:46,406 INFO L93 Difference]: Finished difference Result 338 states and 434 transitions. [2022-11-19 07:56:46,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:46,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 99 [2022-11-19 07:56:46,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:46,409 INFO L225 Difference]: With dead ends: 338 [2022-11-19 07:56:46,410 INFO L226 Difference]: Without dead ends: 216 [2022-11-19 07:56:46,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:46,412 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:46,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:46,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-19 07:56:46,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-19 07:56:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 126 states have internal predecessors, (155), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:56:46,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 284 transitions. [2022-11-19 07:56:46,434 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 284 transitions. Word has length 99 [2022-11-19 07:56:46,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:46,435 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 284 transitions. [2022-11-19 07:56:46,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:56:46,436 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 284 transitions. [2022-11-19 07:56:46,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-19 07:56:46,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:46,439 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:46,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:56:46,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:56:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:46,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1893360858, now seen corresponding path program 1 times [2022-11-19 07:56:46,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:46,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508607176] [2022-11-19 07:56:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:46,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:56:46,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:46,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508607176] [2022-11-19 07:56:46,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508607176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:46,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:46,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:56:46,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127360827] [2022-11-19 07:56:46,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:46,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:46,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:46,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:46,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:46,667 INFO L87 Difference]: Start difference. First operand 216 states and 284 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:56:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:46,857 INFO L93 Difference]: Finished difference Result 467 states and 635 transitions. [2022-11-19 07:56:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 104 [2022-11-19 07:56:46,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:46,871 INFO L225 Difference]: With dead ends: 467 [2022-11-19 07:56:46,871 INFO L226 Difference]: Without dead ends: 269 [2022-11-19 07:56:46,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:46,879 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 59 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:46,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 501 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:46,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-19 07:56:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 264. [2022-11-19 07:56:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 156 states have (on average 1.3461538461538463) internal successors, (210), 160 states have internal predecessors, (210), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-19 07:56:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 367 transitions. [2022-11-19 07:56:46,925 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 367 transitions. Word has length 104 [2022-11-19 07:56:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:46,926 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 367 transitions. [2022-11-19 07:56:46,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:56:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 367 transitions. [2022-11-19 07:56:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-19 07:56:46,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:46,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:46,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:56:46,933 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:56:46,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:46,934 INFO L85 PathProgramCache]: Analyzing trace with hash -370676273, now seen corresponding path program 1 times [2022-11-19 07:56:46,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:46,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313278404] [2022-11-19 07:56:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:46,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:56:47,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:47,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313278404] [2022-11-19 07:56:47,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313278404] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:56:47,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041082223] [2022-11-19 07:56:47,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:47,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:56:47,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:56:47,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:56:47,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:56:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:47,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:56:47,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:56:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:56:47,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:56:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:56:47,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041082223] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:56:47,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1615187960] [2022-11-19 07:56:47,945 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2022-11-19 07:56:47,950 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:56:47,956 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:56:47,962 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:56:47,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:57:29,109 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 07:57:29,528 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-11-19 07:57:31,840 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 07:57:32,193 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 266 for LOIs [2022-11-19 07:57:36,124 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 230 for LOIs [2022-11-19 07:57:36,196 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 238 for LOIs [2022-11-19 07:57:36,276 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 238 for LOIs [2022-11-19 07:57:36,353 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 252 for LOIs [2022-11-19 07:57:36,434 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:58:25,486 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 510 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:58:33,683 WARN L233 SmtUtils]: Spent 7.93s on a formula simplification. DAG size of input: 512 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:58:44,984 WARN L233 SmtUtils]: Spent 10.95s on a formula simplification. DAG size of input: 582 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:59:22,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1615187960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:22,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:59:22,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-11-19 07:59:22,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775569780] [2022-11-19 07:59:22,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:22,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-19 07:59:22,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:22,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-19 07:59:22,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1948, Unknown=0, NotChecked=0, Total=2070 [2022-11-19 07:59:22,442 INFO L87 Difference]: Start difference. First operand 264 states and 367 transitions. Second operand has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-19 07:59:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:57,897 INFO L93 Difference]: Finished difference Result 633 states and 933 transitions. [2022-11-19 07:59:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-19 07:59:57,899 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) Word has length 105 [2022-11-19 07:59:57,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:57,902 INFO L225 Difference]: With dead ends: 633 [2022-11-19 07:59:57,902 INFO L226 Difference]: Without dead ends: 387 [2022-11-19 07:59:57,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 116.2s TimeCoverageRelationStatistics Valid=146, Invalid=2304, Unknown=0, NotChecked=0, Total=2450 [2022-11-19 07:59:57,906 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 230 mSDsluCounter, 5175 mSDsCounter, 0 mSdLazyCounter, 5715 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 5461 SdHoareTripleChecker+Invalid, 5737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 5715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:57,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 5461 Invalid, 5737 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [22 Valid, 5715 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time] [2022-11-19 07:59:57,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-19 07:59:58,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 334. [2022-11-19 07:59:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 215 states have (on average 1.4093023255813955) internal successors, (303), 219 states have internal predecessors, (303), 85 states have call successors, (85), 35 states have call predecessors, (85), 33 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2022-11-19 07:59:58,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 472 transitions. [2022-11-19 07:59:58,092 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 472 transitions. Word has length 105 [2022-11-19 07:59:58,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:58,092 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 472 transitions. [2022-11-19 07:59:58,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-19 07:59:58,093 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 472 transitions. [2022-11-19 07:59:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-19 07:59:58,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:58,096 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:58,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:59:58,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:58,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:58,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:58,298 INFO L85 PathProgramCache]: Analyzing trace with hash -875817901, now seen corresponding path program 1 times [2022-11-19 07:59:58,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:58,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811049303] [2022-11-19 07:59:58,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:58,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:58,459 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 07:59:58,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:58,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811049303] [2022-11-19 07:59:58,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811049303] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:59:58,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698466313] [2022-11-19 07:59:58,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:58,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:58,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:58,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:59:58,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:59:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:58,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:59:58,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:59:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 07:59:58,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:59:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 07:59:58,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698466313] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:59:58,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1868176541] [2022-11-19 07:59:58,960 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-11-19 07:59:58,960 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:59:58,961 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:59:58,961 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:59:58,961 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:00:35,120 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 08:00:35,475 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-11-19 08:00:37,558 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 238 for LOIs [2022-11-19 08:00:37,633 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:00:38,040 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 264 for LOIs [2022-11-19 08:00:41,750 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 266 for LOIs [2022-11-19 08:00:54,882 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 228 for LOIs [2022-11-19 08:00:54,921 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 247 for LOIs [2022-11-19 08:00:54,997 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 245 for LOIs [2022-11-19 08:00:55,042 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-11-19 08:00:57,294 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 249 for LOIs [2022-11-19 08:00:57,374 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 252 for LOIs [2022-11-19 08:00:57,425 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:01:45,552 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 510 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:01:53,694 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 512 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:02:04,842 WARN L233 SmtUtils]: Spent 10.80s on a formula simplification. DAG size of input: 582 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:02:19,465 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 480 DAG size of output: 274 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:03:01,345 WARN L233 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 469 DAG size of output: 354 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:03:32,456 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 538 DAG size of output: 379 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:03:42,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1868176541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:42,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:03:42,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [4, 4, 4] total 65 [2022-11-19 08:03:42,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926816917] [2022-11-19 08:03:42,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:42,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-11-19 08:03:42,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:03:42,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-11-19 08:03:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=3987, Unknown=0, NotChecked=0, Total=4160 [2022-11-19 08:03:42,052 INFO L87 Difference]: Start difference. First operand 334 states and 472 transitions. Second operand has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 08:04:44,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:04:44,508 INFO L93 Difference]: Finished difference Result 555 states and 782 transitions. [2022-11-19 08:04:44,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-19 08:04:44,508 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 94 [2022-11-19 08:04:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:04:44,512 INFO L225 Difference]: With dead ends: 555 [2022-11-19 08:04:44,512 INFO L226 Difference]: Without dead ends: 440 [2022-11-19 08:04:44,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 219 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1250 ImplicationChecksByTransitivity, 188.3s TimeCoverageRelationStatistics Valid=231, Invalid=5171, Unknown=0, NotChecked=0, Total=5402 [2022-11-19 08:04:44,515 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 236 mSDsluCounter, 6585 mSDsCounter, 0 mSdLazyCounter, 9049 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 9066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 9049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:04:44,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 6873 Invalid, 9066 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [17 Valid, 9049 Invalid, 0 Unknown, 0 Unchecked, 37.9s Time] [2022-11-19 08:04:44,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-11-19 08:04:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 383. [2022-11-19 08:04:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 245 states have (on average 1.383673469387755) internal successors, (339), 250 states have internal predecessors, (339), 99 states have call successors, (99), 40 states have call predecessors, (99), 38 states have return successors, (99), 94 states have call predecessors, (99), 98 states have call successors, (99) [2022-11-19 08:04:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 537 transitions. [2022-11-19 08:04:44,722 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 537 transitions. Word has length 94 [2022-11-19 08:04:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:04:44,723 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 537 transitions. [2022-11-19 08:04:44,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 08:04:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 537 transitions. [2022-11-19 08:04:44,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-19 08:04:44,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:44,728 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:04:44,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:04:44,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:04:44,936 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:04:44,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:44,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1293144592, now seen corresponding path program 1 times [2022-11-19 08:04:44,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:04:44,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888205954] [2022-11-19 08:04:44,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:44,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:04:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 08:04:45,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:04:45,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888205954] [2022-11-19 08:04:45,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888205954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:04:45,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:04:45,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:04:45,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398392612] [2022-11-19 08:04:45,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:04:45,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:04:45,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:04:45,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:04:45,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:04:45,060 INFO L87 Difference]: Start difference. First operand 383 states and 537 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:04:45,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:04:45,600 INFO L93 Difference]: Finished difference Result 890 states and 1296 transitions. [2022-11-19 08:04:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:04:45,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-19 08:04:45,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:04:45,604 INFO L225 Difference]: With dead ends: 890 [2022-11-19 08:04:45,605 INFO L226 Difference]: Without dead ends: 533 [2022-11-19 08:04:45,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:04:45,607 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 57 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:04:45,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 512 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:04:45,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-11-19 08:04:45,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 526. [2022-11-19 08:04:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 357 states have (on average 1.4565826330532212) internal successors, (520), 362 states have internal predecessors, (520), 130 states have call successors, (130), 40 states have call predecessors, (130), 38 states have return successors, (130), 125 states have call predecessors, (130), 129 states have call successors, (130) [2022-11-19 08:04:45,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 780 transitions. [2022-11-19 08:04:45,984 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 780 transitions. Word has length 99 [2022-11-19 08:04:45,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:04:45,985 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 780 transitions. [2022-11-19 08:04:45,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:04:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 780 transitions. [2022-11-19 08:04:45,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-19 08:04:45,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:45,989 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:04:45,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:04:45,990 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:04:45,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:45,990 INFO L85 PathProgramCache]: Analyzing trace with hash 924575640, now seen corresponding path program 1 times [2022-11-19 08:04:45,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:04:45,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708126795] [2022-11-19 08:04:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:45,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:04:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-19 08:04:46,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:04:46,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708126795] [2022-11-19 08:04:46,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708126795] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:04:46,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203806166] [2022-11-19 08:04:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:46,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:04:46,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:04:46,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:04:46,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:04:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:46,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:04:46,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-19 08:04:46,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:04:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-19 08:04:46,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203806166] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:04:46,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1307823518] [2022-11-19 08:04:46,761 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-11-19 08:04:46,761 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:04:46,762 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:04:46,762 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:04:46,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:05:54,100 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 08:05:54,457 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:05:54,801 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:06:45,358 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 510 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:06:53,506 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 512 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:08,456 WARN L233 SmtUtils]: Spent 14.64s on a formula simplification. DAG size of input: 583 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:20,506 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 566 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:27,199 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 562 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:36,247 WARN L233 SmtUtils]: Spent 8.69s on a formula simplification. DAG size of input: 566 DAG size of output: 413 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:45,229 WARN L233 SmtUtils]: Spent 8.62s on a formula simplification. DAG size of input: 562 DAG size of output: 409 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:50,930 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 551 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:56,705 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 553 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:06,370 WARN L233 SmtUtils]: Spent 9.22s on a formula simplification. DAG size of input: 584 DAG size of output: 401 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:06,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1307823518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:06,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:08:06,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-19 08:08:06,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413465759] [2022-11-19 08:08:06,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:06,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 08:08:06,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:06,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 08:08:06,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:08:06,574 INFO L87 Difference]: Start difference. First operand 526 states and 780 transitions. Second operand has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-11-19 08:08:17,833 WARN L233 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 494 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:23,328 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 488 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:28,743 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 469 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:34,166 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 465 DAG size of output: 366 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:48,701 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 511 DAG size of output: 389 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:56,303 INFO L93 Difference]: Finished difference Result 1026 states and 1576 transitions. [2022-11-19 08:08:56,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-19 08:08:56,307 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 111 [2022-11-19 08:08:56,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:56,311 INFO L225 Difference]: With dead ends: 1026 [2022-11-19 08:08:56,312 INFO L226 Difference]: Without dead ends: 680 [2022-11-19 08:08:56,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 305 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 171.0s TimeCoverageRelationStatistics Valid=197, Invalid=1135, Unknown=0, NotChecked=0, Total=1332 [2022-11-19 08:08:56,314 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 154 mSDsluCounter, 3526 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:56,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 3785 Invalid, 2160 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-19 08:08:56,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-11-19 08:08:56,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 591. [2022-11-19 08:08:56,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 418 states have (on average 1.4808612440191387) internal successors, (619), 425 states have internal predecessors, (619), 133 states have call successors, (133), 41 states have call predecessors, (133), 39 states have return successors, (133), 126 states have call predecessors, (133), 132 states have call successors, (133) [2022-11-19 08:08:56,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 885 transitions. [2022-11-19 08:08:56,700 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 885 transitions. Word has length 111 [2022-11-19 08:08:56,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:56,701 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 885 transitions. [2022-11-19 08:08:56,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-11-19 08:08:56,702 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 885 transitions. [2022-11-19 08:08:56,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-19 08:08:56,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:56,705 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:56,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 08:08:56,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:08:56,912 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash -485239681, now seen corresponding path program 1 times [2022-11-19 08:08:56,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:56,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137777828] [2022-11-19 08:08:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:56,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 08:08:57,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:57,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137777828] [2022-11-19 08:08:57,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137777828] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:08:57,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076469024] [2022-11-19 08:08:57,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:57,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:08:57,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:08:57,096 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:08:57,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed48611-6b80-4b9d-936c-6cd2e52f7266/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:08:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:57,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:08:57,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 08:08:57,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:08:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 08:08:57,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076469024] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:08:57,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1261681027] [2022-11-19 08:08:57,645 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2022-11-19 08:08:57,645 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:08:57,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:08:57,647 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:08:57,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:10:09,855 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 08:10:10,202 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-19 08:10:10,272 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-11-19 08:10:10,346 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 432 for LOIs [2022-11-19 08:10:10,749 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:10:11,089 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:10:24,631 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 444 DAG size of output: 243 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)