./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product26.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_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/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_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/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_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/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 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 --- 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 08:17:48,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:17:48,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:17:48,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:17:48,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:17:48,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:17:48,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:17:48,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:17:48,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:17:48,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:17:48,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:17:48,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:17:48,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:17:48,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:17:48,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:17:48,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:17:48,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:17:48,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:17:48,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:17:48,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:17:48,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:17:48,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:17:48,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:17:48,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:17:48,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:17:48,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:17:48,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:17:48,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:17:48,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:17:48,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:17:48,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:17:48,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:17:48,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:17:48,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:17:48,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:17:48,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:17:48,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:17:48,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:17:48,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:17:48,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:17:48,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:17:48,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:17:48,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:17:48,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:17:48,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:17:48,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:17:48,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:17:48,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:17:48,398 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:17:48,398 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:17:48,399 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:17:48,399 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:17:48,400 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:17:48,400 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:17:48,400 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:17:48,401 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:17:48,401 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:17:48,401 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:17:48,401 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:17:48,402 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:17:48,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:17:48,403 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:17:48,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:17:48,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:17:48,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:17:48,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:17:48,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:17:48,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:17:48,406 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:17:48,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:17:48,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:17:48,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:17:48,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:17:48,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:17:48,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:17:48,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:17:48,408 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:17:48,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:17:48,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:17:48,409 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:17:48,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:17:48,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:17:48,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:17:48,410 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_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 [2022-11-19 08:17:48,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:17:48,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:17:48,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:17:48,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:17:48,764 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:17:48,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2022-11-19 08:17:48,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/data/700510958/02ef9a4796c44bdd92f8255e15c3031d/FLAG845b42f86 [2022-11-19 08:17:49,450 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:17:49,451 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2022-11-19 08:17:49,479 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/data/700510958/02ef9a4796c44bdd92f8255e15c3031d/FLAG845b42f86 [2022-11-19 08:17:49,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/data/700510958/02ef9a4796c44bdd92f8255e15c3031d [2022-11-19 08:17:49,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:17:49,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:17:49,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:17:49,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:17:49,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:17:49,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:17:49" (1/1) ... [2022-11-19 08:17:49,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2013895d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:49, skipping insertion in model container [2022-11-19 08:17:49,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:17:49" (1/1) ... [2022-11-19 08:17:49,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:17:49,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:17:50,313 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_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2022-11-19 08:17:50,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:17:50,550 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:17:50,619 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_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2022-11-19 08:17:50,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:17:50,739 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:17:50,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50 WrapperNode [2022-11-19 08:17:50,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:17:50,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:17:50,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:17:50,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:17:50,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,894 INFO L138 Inliner]: procedures = 131, calls = 225, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1095 [2022-11-19 08:17:50,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:17:50,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:17:50,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:17:50,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:17:50,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:17:50,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:17:50,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:17:50,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:17:50,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (1/1) ... [2022-11-19 08:17:50,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:17:50,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:17:51,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:17:51,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:17:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 08:17:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 08:17:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 08:17:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 08:17:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 08:17:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 08:17:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 08:17:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 08:17:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 08:17:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 08:17:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-19 08:17:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-19 08:17:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 08:17:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 08:17:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 08:17:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 08:17:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 08:17:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 08:17:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 08:17:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 08:17:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 08:17:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 08:17:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 08:17:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-19 08:17:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-19 08:17:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 08:17:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 08:17:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:17:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 08:17:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 08:17:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 08:17:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 08:17:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 08:17:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 08:17:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 08:17:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 08:17:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 08:17:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 08:17:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 08:17:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 08:17:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 08:17:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 08:17:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 08:17:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 08:17:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:17:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 08:17:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 08:17:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 08:17:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 08:17:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:17:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:17:51,345 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:17:51,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:17:52,524 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:17:53,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:17:53,137 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:17:53,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:17:53 BoogieIcfgContainer [2022-11-19 08:17:53,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:17:53,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:17:53,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:17:53,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:17:53,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:17:49" (1/3) ... [2022-11-19 08:17:53,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782c1617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:17:53, skipping insertion in model container [2022-11-19 08:17:53,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:17:50" (2/3) ... [2022-11-19 08:17:53,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782c1617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:17:53, skipping insertion in model container [2022-11-19 08:17:53,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:17:53" (3/3) ... [2022-11-19 08:17:53,152 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2022-11-19 08:17:53,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:17:53,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:17:53,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:17:53,269 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;@373634ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:17:53,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:17:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-19 08:17:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-19 08:17:53,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:53,293 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:17:53,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:17:53,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash 127087152, now seen corresponding path program 1 times [2022-11-19 08:17:53,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:53,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061852344] [2022-11-19 08:17:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:17:53,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:53,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061852344] [2022-11-19 08:17:53,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061852344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:17:53,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:17:53,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:17:53,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186509990] [2022-11-19 08:17:53,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:17:53,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:17:53,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:17:53,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:17:53,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:17:53,838 INFO L87 Difference]: Start difference. First operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:17:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:54,081 INFO L93 Difference]: Finished difference Result 308 states and 417 transitions. [2022-11-19 08:17:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:17:54,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-11-19 08:17:54,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:54,105 INFO L225 Difference]: With dead ends: 308 [2022-11-19 08:17:54,105 INFO L226 Difference]: Without dead ends: 197 [2022-11-19 08:17:54,115 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 08:17:54,119 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:54,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:17:54,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-19 08:17:54,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-11-19 08:17:54,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 115 states have internal predecessors, (143), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-19 08:17:54,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 266 transitions. [2022-11-19 08:17:54,225 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 266 transitions. Word has length 63 [2022-11-19 08:17:54,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:54,228 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 266 transitions. [2022-11-19 08:17:54,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:17:54,230 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 266 transitions. [2022-11-19 08:17:54,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 08:17:54,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:54,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:17:54,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:17:54,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:17:54,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:54,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1862087256, now seen corresponding path program 1 times [2022-11-19 08:17:54,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:54,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971092230] [2022-11-19 08:17:54,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:54,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:17:54,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:54,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971092230] [2022-11-19 08:17:54,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971092230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:17:54,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:17:54,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:17:54,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458406339] [2022-11-19 08:17:54,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:17:54,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:17:54,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:17:54,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:17:54,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:17:54,523 INFO L87 Difference]: Start difference. First operand 197 states and 266 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:17:54,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:54,711 INFO L93 Difference]: Finished difference Result 304 states and 402 transitions. [2022-11-19 08:17:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:17:54,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-11-19 08:17:54,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:54,714 INFO L225 Difference]: With dead ends: 304 [2022-11-19 08:17:54,714 INFO L226 Difference]: Without dead ends: 199 [2022-11-19 08:17:54,715 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 08:17:54,716 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:54,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:17:54,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-19 08:17:54,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-11-19 08:17:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 117 states have internal predecessors, (145), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-19 08:17:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 268 transitions. [2022-11-19 08:17:54,733 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 268 transitions. Word has length 64 [2022-11-19 08:17:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:54,734 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 268 transitions. [2022-11-19 08:17:54,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:17:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 268 transitions. [2022-11-19 08:17:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-19 08:17:54,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:54,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:17:54,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:17:54,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:17:54,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1974227867, now seen corresponding path program 1 times [2022-11-19 08:17:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:54,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311803607] [2022-11-19 08:17:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:54,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:17:54,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:54,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311803607] [2022-11-19 08:17:54,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311803607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:17:54,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:17:54,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:17:54,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153835223] [2022-11-19 08:17:54,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:17:54,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:17:54,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:17:54,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:17:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:17:54,869 INFO L87 Difference]: Start difference. First operand 199 states and 268 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:17:55,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:55,012 INFO L93 Difference]: Finished difference Result 433 states and 603 transitions. [2022-11-19 08:17:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:17:55,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-11-19 08:17:55,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:55,015 INFO L225 Difference]: With dead ends: 433 [2022-11-19 08:17:55,015 INFO L226 Difference]: Without dead ends: 252 [2022-11-19 08:17:55,016 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 08:17:55,018 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 59 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:55,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 467 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:17:55,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-19 08:17:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2022-11-19 08:17:55,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 151 states have internal predecessors, (200), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-19 08:17:55,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 351 transitions. [2022-11-19 08:17:55,039 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 351 transitions. Word has length 69 [2022-11-19 08:17:55,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:55,039 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 351 transitions. [2022-11-19 08:17:55,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:17:55,040 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 351 transitions. [2022-11-19 08:17:55,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-19 08:17:55,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:55,042 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:17:55,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:17:55,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:17:55,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:55,043 INFO L85 PathProgramCache]: Analyzing trace with hash 881538843, now seen corresponding path program 1 times [2022-11-19 08:17:55,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:55,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407783754] [2022-11-19 08:17:55,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:55,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:17:55,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:55,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407783754] [2022-11-19 08:17:55,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407783754] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:17:55,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294287456] [2022-11-19 08:17:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:55,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:17:55,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:17:55,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:17:55,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:17:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:55,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:17:55,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:17:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:17:55,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:17:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:17:55,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294287456] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:17:55,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [744383389] [2022-11-19 08:17:55,934 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-19 08:17:55,934 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:17:55,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:17:55,945 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:17:55,945 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:18:31,754 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 08:18:32,096 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:18:32,481 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:19:02,454 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 468 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:19:18,569 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 502 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:19:25,605 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 512 DAG size of output: 304 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:19:47,068 WARN L233 SmtUtils]: Spent 21.09s on a formula simplification. DAG size of input: 596 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:00,415 WARN L233 SmtUtils]: Spent 12.99s on a formula simplification. DAG size of input: 598 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:07,554 WARN L233 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 347 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:14,758 WARN L233 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 345 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:21,655 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 549 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:21,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [744383389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:21,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:20:21,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-19 08:20:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148635937] [2022-11-19 08:20:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:21,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-19 08:20:21,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:21,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-19 08:20:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:20:21,668 INFO L87 Difference]: Start difference. First operand 247 states and 351 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-19 08:20:33,132 WARN L233 SmtUtils]: Spent 9.88s on a formula simplification. DAG size of input: 560 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:55,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:55,373 INFO L93 Difference]: Finished difference Result 545 states and 809 transitions. [2022-11-19 08:20:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 08:20:55,374 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2022-11-19 08:20:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:55,376 INFO L225 Difference]: With dead ends: 545 [2022-11-19 08:20:55,377 INFO L226 Difference]: Without dead ends: 316 [2022-11-19 08:20:55,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 134.2s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:20:55,379 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 159 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:55,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3133 Invalid, 1806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-11-19 08:20:55,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-11-19 08:20:55,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 275. [2022-11-19 08:20:55,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 174 states have (on average 1.3735632183908046) internal successors, (239), 178 states have internal predecessors, (239), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-19 08:20:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 390 transitions. [2022-11-19 08:20:55,506 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 390 transitions. Word has length 70 [2022-11-19 08:20:55,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:55,507 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 390 transitions. [2022-11-19 08:20:55,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-19 08:20:55,507 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 390 transitions. [2022-11-19 08:20:55,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 08:20:55,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:55,509 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:55,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:55,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:55,718 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:55,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:55,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1130861375, now seen corresponding path program 1 times [2022-11-19 08:20:55,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:55,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793880215] [2022-11-19 08:20:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:55,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:20:55,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:55,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793880215] [2022-11-19 08:20:55,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793880215] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:20:55,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403225081] [2022-11-19 08:20:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:55,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:55,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:55,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:20:55,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:20:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:56,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:20:56,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:56,267 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:20:56,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:20:56,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403225081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:56,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [394143210] [2022-11-19 08:20:56,345 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-19 08:20:56,345 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:20:56,345 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:20:56,345 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:20:56,346 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:21:50,449 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 08:21:50,755 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-19 08:21:51,067 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:22:08,711 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 467 DAG size of output: 263 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:22:23,316 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 468 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:22:39,404 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 502 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:22:46,351 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 512 DAG size of output: 304 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:07,280 WARN L233 SmtUtils]: Spent 20.59s on a formula simplification. DAG size of input: 593 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:28,257 WARN L233 SmtUtils]: Spent 20.61s on a formula simplification. DAG size of input: 595 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:34,864 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 334 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:41,494 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 332 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:47,968 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 572 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:54,403 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 568 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:03,009 WARN L233 SmtUtils]: Spent 8.17s on a formula simplification. DAG size of input: 572 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:10,036 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 553 DAG size of output: 373 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:16,426 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 584 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:16,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [394143210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:16,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:24:16,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-19 08:24:16,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357512773] [2022-11-19 08:24:16,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:16,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 08:24:16,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:16,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 08:24:16,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:24:16,435 INFO L87 Difference]: Start difference. First operand 275 states and 390 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-19 08:24:37,952 WARN L233 SmtUtils]: Spent 19.72s on a formula simplification. DAG size of input: 552 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:56,166 WARN L233 SmtUtils]: Spent 17.94s on a formula simplification. DAG size of input: 552 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:03,759 WARN L233 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 373 DAG size of output: 351 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:11,627 WARN L233 SmtUtils]: Spent 7.53s on a formula simplification. DAG size of input: 371 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:25,310 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 449 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:39,281 WARN L233 SmtUtils]: Spent 12.80s on a formula simplification. DAG size of input: 561 DAG size of output: 449 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:48,199 WARN L233 SmtUtils]: Spent 8.28s on a formula simplification. DAG size of input: 384 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:56,953 INFO L93 Difference]: Finished difference Result 600 states and 888 transitions. [2022-11-19 08:25:56,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-19 08:25:56,953 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2022-11-19 08:25:56,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:56,956 INFO L225 Difference]: With dead ends: 600 [2022-11-19 08:25:56,956 INFO L226 Difference]: Without dead ends: 371 [2022-11-19 08:25:56,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 233.1s TimeCoverageRelationStatistics Valid=182, Invalid=1300, Unknown=0, NotChecked=0, Total=1482 [2022-11-19 08:25:56,959 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 151 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:56,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 3511 Invalid, 2284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-11-19 08:25:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-19 08:25:57,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 289. [2022-11-19 08:25:57,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 186 states have (on average 1.3763440860215055) internal successors, (256), 190 states have internal predecessors, (256), 77 states have call successors, (77), 25 states have call predecessors, (77), 25 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-19 08:25:57,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 409 transitions. [2022-11-19 08:25:57,120 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 409 transitions. Word has length 76 [2022-11-19 08:25:57,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:57,120 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 409 transitions. [2022-11-19 08:25:57,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-19 08:25:57,121 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 409 transitions. [2022-11-19 08:25:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 08:25:57,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:57,126 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:25:57,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:25:57,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:57,335 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:25:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1336118323, now seen corresponding path program 1 times [2022-11-19 08:25:57,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:57,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946664941] [2022-11-19 08:25:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:57,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:57,504 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:57,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:57,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946664941] [2022-11-19 08:25:57,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946664941] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:25:57,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813408345] [2022-11-19 08:25:57,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:57,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:57,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:57,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:25:57,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:25:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:57,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:25:57,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:25:57,882 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:57,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:25:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:57,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813408345] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:25:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1504544244] [2022-11-19 08:25:57,971 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-19 08:25:57,971 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:25:57,972 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:25:57,972 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:25:57,972 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:27:38,374 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-19 08:27:38,692 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-11-19 08:27:39,017 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-11-19 08:27:39,079 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-11-19 08:27:39,142 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:27:39,458 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:28:10,491 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 468 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:28:26,323 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 502 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:28:33,274 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 512 DAG size of output: 304 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:28:46,011 WARN L233 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 534 DAG size of output: 403 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:29:02,585 WARN L233 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 545 DAG size of output: 379 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:29:18,206 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 526 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:29:18,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1504544244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:29:18,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:29:18,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-11-19 08:29:18,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080771554] [2022-11-19 08:29:18,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:29:18,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-19 08:29:18,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:29:18,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-19 08:29:18,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1017, Unknown=0, NotChecked=0, Total=1122 [2022-11-19 08:29:18,216 INFO L87 Difference]: Start difference. First operand 289 states and 409 transitions. Second operand has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-19 08:29:28,946 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 510 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:29:52,253 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 506 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:04,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:04,092 INFO L93 Difference]: Finished difference Result 621 states and 920 transitions. [2022-11-19 08:30:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-19 08:30:04,093 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2022-11-19 08:30:04,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:04,096 INFO L225 Difference]: With dead ends: 621 [2022-11-19 08:30:04,096 INFO L226 Difference]: Without dead ends: 392 [2022-11-19 08:30:04,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 128.9s TimeCoverageRelationStatistics Valid=175, Invalid=1547, Unknown=0, NotChecked=0, Total=1722 [2022-11-19 08:30:04,099 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 167 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 3436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:04,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 3645 Invalid, 3436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2022-11-19 08:30:04,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-19 08:30:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 325. [2022-11-19 08:30:04,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 216 states have (on average 1.3796296296296295) internal successors, (298), 220 states have internal predecessors, (298), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-19 08:30:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 457 transitions. [2022-11-19 08:30:04,321 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 457 transitions. Word has length 79 [2022-11-19 08:30:04,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:04,321 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 457 transitions. [2022-11-19 08:30:04,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-19 08:30:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 457 transitions. [2022-11-19 08:30:04,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:30:04,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:04,324 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:04,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 08:30:04,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:30:04,531 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:30:04,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:04,531 INFO L85 PathProgramCache]: Analyzing trace with hash 254363607, now seen corresponding path program 1 times [2022-11-19 08:30:04,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:04,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467028291] [2022-11-19 08:30:04,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:04,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:30:04,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:04,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467028291] [2022-11-19 08:30:04,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467028291] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:30:04,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817481887] [2022-11-19 08:30:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:04,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:30:04,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:30:04,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:30:04,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7588956a-fac1-4e8a-b51b-6f78ae6dfbb7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:30:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:05,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:30:05,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:30:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:30:05,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:30:05,281 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:30:05,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817481887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:30:05,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [710162536] [2022-11-19 08:30:05,285 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-19 08:30:05,285 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:30:05,286 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:30:05,286 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:30:05,286 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:30:53,235 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-19 08:30:53,560 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:30:53,861 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:31:24,763 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 468 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)