./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6dc52251d8599495e3d1910510992bf3863620ce75312360a12a1bf3bdfb6242 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:43:33,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:43:33,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:43:33,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:43:33,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:43:33,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:43:33,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:43:33,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:43:33,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:43:33,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:43:33,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:43:33,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:43:33,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:43:33,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:43:33,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:43:33,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:43:33,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:43:33,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:43:33,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:43:33,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:43:33,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:43:33,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:43:33,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:43:33,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:43:33,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:43:33,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:43:33,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:43:33,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:43:33,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:43:33,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:43:33,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:43:33,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:43:33,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:43:33,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:43:33,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:43:33,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:43:33,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:43:33,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:43:33,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:43:33,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:43:33,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:43:33,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:43:33,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:43:33,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:43:33,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:43:33,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:43:33,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:43:33,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:43:33,110 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:43:33,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:43:33,111 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:43:33,111 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:43:33,111 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:43:33,111 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:43:33,111 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:43:33,111 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:43:33,111 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:43:33,112 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:43:33,112 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:43:33,112 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:43:33,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:43:33,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:43:33,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:43:33,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:43:33,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:43:33,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:43:33,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:43:33,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:43:33,114 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:43:33,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:43:33,114 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:43:33,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:43:33,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:43:33,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:43:33,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:43:33,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:43:33,115 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:43:33,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:43:33,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:43:33,115 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:43:33,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:43:33,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:43:33,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:43:33,116 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_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dc52251d8599495e3d1910510992bf3863620ce75312360a12a1bf3bdfb6242 [2022-12-14 13:43:33,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:43:33,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:43:33,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:43:33,345 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:43:33,346 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:43:33,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c [2022-12-14 13:43:36,018 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:43:36,291 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:43:36,292 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/sv-benchmarks/c/product-lines/email_spec9_product33.cil.c [2022-12-14 13:43:36,308 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/data/2c7ff02f5/6f81fd9b83ba43889b39f7197120b821/FLAGdc3074f66 [2022-12-14 13:43:36,587 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/data/2c7ff02f5/6f81fd9b83ba43889b39f7197120b821 [2022-12-14 13:43:36,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:43:36,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:43:36,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:43:36,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:43:36,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:43:36,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:43:36" (1/1) ... [2022-12-14 13:43:36,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5500f68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:36, skipping insertion in model container [2022-12-14 13:43:36,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:43:36" (1/1) ... [2022-12-14 13:43:36,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:43:36,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:43:36,845 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,846 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,850 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,874 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,876 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,930 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/sv-benchmarks/c/product-lines/email_spec9_product33.cil.c[33566,33579] [2022-12-14 13:43:36,944 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,948 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,957 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,959 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:36,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:43:37,007 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:43:37,023 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,024 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,026 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,033 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,034 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,055 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/sv-benchmarks/c/product-lines/email_spec9_product33.cil.c[33566,33579] [2022-12-14 13:43:37,057 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,059 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,063 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,064 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:43:37,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:43:37,106 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:43:37,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37 WrapperNode [2022-12-14 13:43:37,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:43:37,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:43:37,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:43:37,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:43:37,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,186 INFO L138 Inliner]: procedures = 135, calls = 233, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1084 [2022-12-14 13:43:37,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:43:37,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:43:37,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:43:37,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:43:37,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,223 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:43:37,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:43:37,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:43:37,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:43:37,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (1/1) ... [2022-12-14 13:43:37,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:43:37,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:43:37,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:43:37,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:43:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 13:43:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 13:43:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 13:43:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 13:43:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 13:43:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 13:43:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 13:43:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 13:43:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 13:43:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 13:43:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 13:43:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 13:43:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 13:43:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 13:43:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 13:43:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 13:43:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 13:43:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 13:43:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 13:43:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 13:43:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 13:43:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 13:43:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 13:43:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 13:43:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 13:43:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 13:43:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 13:43:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:43:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 13:43:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 13:43:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 13:43:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 13:43:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 13:43:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 13:43:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 13:43:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 13:43:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 13:43:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 13:43:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 13:43:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 13:43:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 13:43:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 13:43:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 13:43:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 13:43:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 13:43:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 13:43:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 13:43:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 13:43:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:43:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 13:43:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 13:43:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:43:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:43:37,462 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:43:37,464 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:43:38,082 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:43:38,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:43:38,338 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:43:38,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:43:38 BoogieIcfgContainer [2022-12-14 13:43:38,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:43:38,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:43:38,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:43:38,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:43:38,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:43:36" (1/3) ... [2022-12-14 13:43:38,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595a56ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:43:38, skipping insertion in model container [2022-12-14 13:43:38,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:37" (2/3) ... [2022-12-14 13:43:38,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595a56ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:43:38, skipping insertion in model container [2022-12-14 13:43:38,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:43:38" (3/3) ... [2022-12-14 13:43:38,346 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product33.cil.c [2022-12-14 13:43:38,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:43:38,361 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:43:38,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:43:38,404 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;@76b76ebb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:43:38,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:43:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 13:43:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 13:43:38,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:38,417 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:38,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:38,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:38,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2038167087, now seen corresponding path program 1 times [2022-12-14 13:43:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:38,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795083103] [2022-12-14 13:43:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:38,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:38,647 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:43:38,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:38,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795083103] [2022-12-14 13:43:38,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795083103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:38,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:38,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:43:38,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975182829] [2022-12-14 13:43:38,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:38,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:43:38,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:38,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:43:38,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:43:38,677 INFO L87 Difference]: Start difference. First operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:43:38,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:38,796 INFO L93 Difference]: Finished difference Result 341 states and 452 transitions. [2022-12-14 13:43:38,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:43:38,798 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-12-14 13:43:38,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:38,806 INFO L225 Difference]: With dead ends: 341 [2022-12-14 13:43:38,806 INFO L226 Difference]: Without dead ends: 209 [2022-12-14 13:43:38,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:43:38,812 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:38,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:38,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-12-14 13:43:38,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-12-14 13:43:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.28099173553719) internal successors, (155), 124 states have internal predecessors, (155), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 13:43:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2022-12-14 13:43:38,853 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 64 [2022-12-14 13:43:38,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:38,854 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2022-12-14 13:43:38,854 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:43:38,854 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2022-12-14 13:43:38,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 13:43:38,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:38,856 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:38,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:43:38,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:38,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:38,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1349477234, now seen corresponding path program 1 times [2022-12-14 13:43:38,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:38,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492161252] [2022-12-14 13:43:38,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:38,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:43:38,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:38,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492161252] [2022-12-14 13:43:38,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492161252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:38,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:38,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:38,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289051425] [2022-12-14 13:43:38,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:38,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:38,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:38,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:38,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:38,992 INFO L87 Difference]: Start difference. First operand 209 states and 280 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:43:39,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:39,121 INFO L93 Difference]: Finished difference Result 337 states and 440 transitions. [2022-12-14 13:43:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:39,122 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-12-14 13:43:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:39,124 INFO L225 Difference]: With dead ends: 337 [2022-12-14 13:43:39,124 INFO L226 Difference]: Without dead ends: 211 [2022-12-14 13:43:39,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:39,126 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:39,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:39,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-12-14 13:43:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-12-14 13:43:39,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 13:43:39,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2022-12-14 13:43:39,143 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 65 [2022-12-14 13:43:39,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:39,143 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2022-12-14 13:43:39,143 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:43:39,143 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2022-12-14 13:43:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 13:43:39,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:39,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:43:39,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:43:39,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:39,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:39,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1812903075, now seen corresponding path program 1 times [2022-12-14 13:43:39,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:39,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394262429] [2022-12-14 13:43:39,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:39,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:43:39,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:39,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394262429] [2022-12-14 13:43:39,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394262429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:43:39,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:43:39,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:43:39,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734768563] [2022-12-14 13:43:39,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:43:39,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:43:39,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:43:39,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:43:39,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:39,238 INFO L87 Difference]: Start difference. First operand 211 states and 282 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:43:39,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:43:39,349 INFO L93 Difference]: Finished difference Result 452 states and 623 transitions. [2022-12-14 13:43:39,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:43:39,349 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-12-14 13:43:39,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:43:39,352 INFO L225 Difference]: With dead ends: 452 [2022-12-14 13:43:39,352 INFO L226 Difference]: Without dead ends: 259 [2022-12-14 13:43:39,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:43:39,354 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 57 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:43:39,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 492 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:43:39,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-12-14 13:43:39,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 254. [2022-12-14 13:43:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 158 states have internal predecessors, (210), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-14 13:43:39,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 357 transitions. [2022-12-14 13:43:39,379 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 357 transitions. Word has length 70 [2022-12-14 13:43:39,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:43:39,379 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 357 transitions. [2022-12-14 13:43:39,380 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:43:39,380 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 357 transitions. [2022-12-14 13:43:39,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 13:43:39,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:43:39,382 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] [2022-12-14 13:43:39,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:43:39,383 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:43:39,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:43:39,383 INFO L85 PathProgramCache]: Analyzing trace with hash 489049290, now seen corresponding path program 1 times [2022-12-14 13:43:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:43:39,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772861042] [2022-12-14 13:43:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:39,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:43:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:43:39,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:43:39,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772861042] [2022-12-14 13:43:39,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772861042] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:43:39,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915772305] [2022-12-14 13:43:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:43:39,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:43:39,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:43:39,524 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:43:39,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:43:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:43:39,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:43:39,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:43:39,810 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:43:39,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:43:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:43:39,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915772305] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:43:39,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [567710784] [2022-12-14 13:43:39,894 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 13:43:39,894 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:43:39,898 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:43:39,903 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:43:39,904 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:44:12,990 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 13:44:13,275 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:44:13,568 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 271 for LOIs [2022-12-14 13:44:15,373 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-12-14 13:44:15,412 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 273 for LOIs [2022-12-14 13:44:36,042 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-12-14 13:44:36,079 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 13:44:36,147 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 257 for LOIs [2022-12-14 13:44:36,191 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 13:44:39,524 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:46:18,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [567710784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:18,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:46:18,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 13:46:18,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618858412] [2022-12-14 13:46:18,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:18,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 13:46:18,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:46:18,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 13:46:18,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2619, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 13:46:18,317 INFO L87 Difference]: Start difference. First operand 254 states and 357 transitions. Second operand has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 13:47:17,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:17,788 INFO L93 Difference]: Finished difference Result 680 states and 1038 transitions. [2022-12-14 13:47:17,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-14 13:47:17,789 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 71 [2022-12-14 13:47:17,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:17,791 INFO L225 Difference]: With dead ends: 680 [2022-12-14 13:47:17,791 INFO L226 Difference]: Without dead ends: 444 [2022-12-14 13:47:17,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 136.0s TimeCoverageRelationStatistics Valid=242, Invalid=4180, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 13:47:17,793 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 271 mSDsluCounter, 6955 mSDsCounter, 0 mSdLazyCounter, 7172 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 7254 SdHoareTripleChecker+Invalid, 7205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 7172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:17,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 7254 Invalid, 7205 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [33 Valid, 7172 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time] [2022-12-14 13:47:17,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-12-14 13:47:17,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 348. [2022-12-14 13:47:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 235 states have (on average 1.4170212765957446) internal successors, (333), 238 states have internal predecessors, (333), 82 states have call successors, (82), 32 states have call predecessors, (82), 30 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2022-12-14 13:47:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 496 transitions. [2022-12-14 13:47:17,927 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 496 transitions. Word has length 71 [2022-12-14 13:47:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:17,928 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 496 transitions. [2022-12-14 13:47:17,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 13:47:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 496 transitions. [2022-12-14 13:47:17,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 13:47:17,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:17,930 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:17,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:47:18,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:18,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:18,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:18,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1594112149, now seen corresponding path program 1 times [2022-12-14 13:47:18,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:18,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106526617] [2022-12-14 13:47:18,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:18,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:47:18,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:47:18,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106526617] [2022-12-14 13:47:18,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106526617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:18,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:18,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:47:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124368702] [2022-12-14 13:47:18,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:18,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:47:18,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:47:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:47:18,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:47:18,198 INFO L87 Difference]: Start difference. First operand 348 states and 496 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 13:47:18,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:18,499 INFO L93 Difference]: Finished difference Result 769 states and 1126 transitions. [2022-12-14 13:47:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:47:18,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-12-14 13:47:18,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:18,502 INFO L225 Difference]: With dead ends: 769 [2022-12-14 13:47:18,502 INFO L226 Difference]: Without dead ends: 463 [2022-12-14 13:47:18,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:47:18,504 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 55 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:18,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 503 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:47:18,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-12-14 13:47:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 456. [2022-12-14 13:47:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 318 states have (on average 1.4559748427672956) internal successors, (463), 321 states have internal predecessors, (463), 107 states have call successors, (107), 32 states have call predecessors, (107), 30 states have return successors, (106), 104 states have call predecessors, (106), 106 states have call successors, (106) [2022-12-14 13:47:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 676 transitions. [2022-12-14 13:47:18,674 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 676 transitions. Word has length 76 [2022-12-14 13:47:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:18,674 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 676 transitions. [2022-12-14 13:47:18,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 13:47:18,674 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 676 transitions. [2022-12-14 13:47:18,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 13:47:18,676 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:18,676 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:18,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:47:18,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:18,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:18,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1075146251, now seen corresponding path program 1 times [2022-12-14 13:47:18,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:18,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184095384] [2022-12-14 13:47:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:18,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:18,756 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:47:18,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:47:18,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184095384] [2022-12-14 13:47:18,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184095384] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:47:18,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623145352] [2022-12-14 13:47:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:18,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:18,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:47:18,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:47:18,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:47:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:18,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:47:18,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:47:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:47:19,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:47:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:47:19,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623145352] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:47:19,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [920646617] [2022-12-14 13:47:19,047 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 13:47:19,047 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:47:19,047 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:47:19,047 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:47:19,048 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:48:01,768 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:48:02,057 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 13:48:02,340 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:48:42,548 WARN L233 SmtUtils]: Spent 9.13s on a formula simplification. DAG size of input: 583 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:48:50,841 WARN L233 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 583 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:49:03,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [920646617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:49:03,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:49:03,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 13:49:03,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117187361] [2022-12-14 13:49:03,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:49:03,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 13:49:03,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:49:03,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 13:49:03,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2022-12-14 13:49:03,504 INFO L87 Difference]: Start difference. First operand 456 states and 676 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, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 13:49:10,198 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 488 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:49:15,928 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 479 DAG size of output: 394 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:49:37,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:49:37,615 INFO L93 Difference]: Finished difference Result 893 states and 1365 transitions. [2022-12-14 13:49:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 13:49:37,616 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, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2022-12-14 13:49:37,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:49:37,618 INFO L225 Difference]: With dead ends: 893 [2022-12-14 13:49:37,618 INFO L226 Difference]: Without dead ends: 567 [2022-12-14 13:49:37,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 87.5s TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 13:49:37,620 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 322 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 4233 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:49:37,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 4233 Invalid, 2472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 2439 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-12-14 13:49:37,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-12-14 13:49:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 512. [2022-12-14 13:49:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 371 states have (on average 1.4743935309973046) internal successors, (547), 375 states have internal predecessors, (547), 109 states have call successors, (109), 33 states have call predecessors, (109), 31 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2022-12-14 13:49:37,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 764 transitions. [2022-12-14 13:49:37,853 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 764 transitions. Word has length 77 [2022-12-14 13:49:37,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:49:37,853 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 764 transitions. [2022-12-14 13:49:37,853 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, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 13:49:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 764 transitions. [2022-12-14 13:49:37,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 13:49:37,855 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:49:37,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:49:37,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:49:38,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 13:49:38,057 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:49:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:49:38,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1892481619, now seen corresponding path program 1 times [2022-12-14 13:49:38,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:49:38,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679440572] [2022-12-14 13:49:38,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:49:38,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:49:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:49:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:38,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:49:38,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679440572] [2022-12-14 13:49:38,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679440572] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:49:38,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591903444] [2022-12-14 13:49:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:49:38,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:49:38,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:49:38,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:49:38,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:49:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:49:38,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:49:38,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:49:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:38,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:49:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:38,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591903444] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:49:38,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1737243819] [2022-12-14 13:49:38,484 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 13:49:38,484 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:49:38,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:49:38,485 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:49:38,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:50:19,270 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:50:19,556 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2022-12-14 13:50:19,616 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 245 for LOIs [2022-12-14 13:50:19,680 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 235 for LOIs [2022-12-14 13:50:19,746 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:50:20,041 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:51:03,002 WARN L233 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 623 DAG size of output: 483 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:51:11,977 WARN L233 SmtUtils]: Spent 8.70s on a formula simplification. DAG size of input: 623 DAG size of output: 464 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:51:22,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1737243819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:51:22,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:51:22,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 13:51:22,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391990048] [2022-12-14 13:51:22,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:51:22,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 13:51:22,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:51:22,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 13:51:22,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 13:51:22,121 INFO L87 Difference]: Start difference. First operand 512 states and 764 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 13:51:41,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:51:41,217 INFO L93 Difference]: Finished difference Result 958 states and 1468 transitions. [2022-12-14 13:51:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 13:51:41,217 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2022-12-14 13:51:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:51:41,219 INFO L225 Difference]: With dead ends: 958 [2022-12-14 13:51:41,220 INFO L226 Difference]: Without dead ends: 632 [2022-12-14 13:51:41,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 69.3s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 13:51:41,221 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 192 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 4399 SdHoareTripleChecker+Invalid, 3778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:51:41,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 4399 Invalid, 3778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-12-14 13:51:41,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-12-14 13:51:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 579. [2022-12-14 13:51:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 431 states have (on average 1.4849187935034802) internal successors, (640), 436 states have internal predecessors, (640), 113 states have call successors, (113), 36 states have call predecessors, (113), 34 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2022-12-14 13:51:41,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 865 transitions. [2022-12-14 13:51:41,547 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 865 transitions. Word has length 80 [2022-12-14 13:51:41,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:51:41,548 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 865 transitions. [2022-12-14 13:51:41,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 13:51:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 865 transitions. [2022-12-14 13:51:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 13:51:41,549 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:51:41,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:51:41,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:51:41,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:51:41,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:51:41,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:51:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2044225715, now seen corresponding path program 1 times [2022-12-14 13:51:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:51:41,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97186001] [2022-12-14 13:51:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:51:41,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:51:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:51:41,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:51:41,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:51:41,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97186001] [2022-12-14 13:51:41,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97186001] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:51:41,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745251545] [2022-12-14 13:51:41,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:51:41,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:51:41,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:51:41,853 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:51:41,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:51:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:51:42,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:51:42,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:51:42,087 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:51:42,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:51:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:51:42,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745251545] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:51:42,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [982363090] [2022-12-14 13:51:42,135 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 13:51:42,135 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:51:42,136 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:51:42,136 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:51:42,136 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:52:21,391 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:52:21,686 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:52:21,969 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:53:02,043 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 604 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:53:14,393 WARN L233 SmtUtils]: Spent 12.07s on a formula simplification. DAG size of input: 605 DAG size of output: 478 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:53:27,205 WARN L233 SmtUtils]: Spent 12.52s on a formula simplification. DAG size of input: 604 DAG size of output: 479 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:53:37,981 WARN L233 SmtUtils]: Spent 10.47s on a formula simplification. DAG size of input: 602 DAG size of output: 477 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:53:44,707 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 601 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:07,799 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 584 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:15,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [982363090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:54:15,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:54:15,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 13:54:15,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495126574] [2022-12-14 13:54:15,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:54:15,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 13:54:15,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:54:15,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 13:54:15,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=982, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 13:54:15,082 INFO L87 Difference]: Start difference. First operand 579 states and 865 transitions. Second operand has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 13:54:23,653 WARN L233 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 575 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:28,959 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 582 DAG size of output: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:40,349 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 606 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:47,545 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 606 DAG size of output: 389 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:53,813 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 610 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:59,599 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 608 DAG size of output: 389 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:55:05,972 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 610 DAG size of output: 397 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:55:12,251 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 608 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:55:20,981 WARN L233 SmtUtils]: Spent 8.29s on a formula simplification. DAG size of input: 614 DAG size of output: 400 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:55:29,610 WARN L233 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 612 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:55:48,344 WARN L233 SmtUtils]: Spent 13.19s on a formula simplification. DAG size of input: 610 DAG size of output: 423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:55:59,920 WARN L233 SmtUtils]: Spent 10.63s on a formula simplification. DAG size of input: 604 DAG size of output: 425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:56:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:56:06,666 INFO L93 Difference]: Finished difference Result 1006 states and 1542 transitions. [2022-12-14 13:56:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-14 13:56:06,666 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 79 [2022-12-14 13:56:06,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:56:06,669 INFO L225 Difference]: With dead ends: 1006 [2022-12-14 13:56:06,669 INFO L226 Difference]: Without dead ends: 680 [2022-12-14 13:56:06,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 213.5s TimeCoverageRelationStatistics Valid=395, Invalid=1957, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 13:56:06,670 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 174 mSDsluCounter, 4233 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:56:06,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 4487 Invalid, 2964 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-12-14 13:56:06,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-12-14 13:56:07,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 593. [2022-12-14 13:56:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 445 states have (on average 1.4853932584269662) internal successors, (661), 450 states have internal predecessors, (661), 113 states have call successors, (113), 36 states have call predecessors, (113), 34 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2022-12-14 13:56:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 886 transitions. [2022-12-14 13:56:07,051 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 886 transitions. Word has length 79 [2022-12-14 13:56:07,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:56:07,051 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 886 transitions. [2022-12-14 13:56:07,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 13:56:07,051 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 886 transitions. [2022-12-14 13:56:07,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 13:56:07,052 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:56:07,052 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:56:07,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:56:07,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:56:07,254 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:56:07,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:56:07,255 INFO L85 PathProgramCache]: Analyzing trace with hash 991565587, now seen corresponding path program 1 times [2022-12-14 13:56:07,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:56:07,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765747678] [2022-12-14 13:56:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:56:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:56:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 13:56:07,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:56:07,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765747678] [2022-12-14 13:56:07,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765747678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:56:07,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:56:07,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:56:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785850998] [2022-12-14 13:56:07,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:56:07,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:56:07,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:56:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:56:07,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:56:07,385 INFO L87 Difference]: Start difference. First operand 593 states and 886 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 13:56:07,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:56:07,896 INFO L93 Difference]: Finished difference Result 747 states and 1071 transitions. [2022-12-14 13:56:07,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:56:07,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2022-12-14 13:56:07,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:56:07,901 INFO L225 Difference]: With dead ends: 747 [2022-12-14 13:56:07,901 INFO L226 Difference]: Without dead ends: 623 [2022-12-14 13:56:07,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:56:07,902 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 123 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:56:07,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 365 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:56:07,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-12-14 13:56:08,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 621. [2022-12-14 13:56:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 459 states have (on average 1.4705882352941178) internal successors, (675), 465 states have internal predecessors, (675), 119 states have call successors, (119), 45 states have call predecessors, (119), 42 states have return successors, (118), 113 states have call predecessors, (118), 118 states have call successors, (118) [2022-12-14 13:56:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 912 transitions. [2022-12-14 13:56:08,275 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 912 transitions. Word has length 82 [2022-12-14 13:56:08,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:56:08,275 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 912 transitions. [2022-12-14 13:56:08,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 13:56:08,275 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 912 transitions. [2022-12-14 13:56:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-14 13:56:08,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:56:08,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:56:08,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 13:56:08,277 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:56:08,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:56:08,277 INFO L85 PathProgramCache]: Analyzing trace with hash 845961328, now seen corresponding path program 1 times [2022-12-14 13:56:08,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:56:08,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096594162] [2022-12-14 13:56:08,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:08,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:56:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:56:08,383 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 13:56:08,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:56:08,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096594162] [2022-12-14 13:56:08,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096594162] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:56:08,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366262652] [2022-12-14 13:56:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:08,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:56:08,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:56:08,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:56:08,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09229443-3d07-4db0-be5c-4afe17a0c9c1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:56:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:56:08,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:56:08,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:56:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-12-14 13:56:08,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:56:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 13:56:08,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366262652] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:56:08,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1589011325] [2022-12-14 13:56:08,727 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2022-12-14 13:56:08,727 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:56:08,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:56:08,727 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:56:08,727 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:56:39,528 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:56:39,817 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:56:40,097 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 271 for LOIs [2022-12-14 13:56:43,670 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 13:56:43,708 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 548 for LOIs [2022-12-14 13:57:10,501 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 216 for LOIs [2022-12-14 13:57:11,166 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 417 for LOIs [2022-12-14 13:57:11,387 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 220 for LOIs [2022-12-14 13:57:11,441 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 397 for LOIs [2022-12-14 13:57:11,888 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 396 for LOIs [2022-12-14 13:57:12,090 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 216 for LOIs [2022-12-14 13:57:12,118 INFO L180 IcfgInterpreter]: Interpretation finished