./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/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_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/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_87b0657c-3c37-427f-a5e0-58d5e084d4fb/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 ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 --- 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 08:19:17,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:19:17,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:19:17,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:19:17,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:19:17,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:19:17,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:19:17,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:19:17,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:19:17,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:19:17,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:19:17,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:19:17,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:19:17,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:19:17,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:19:17,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:19:17,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:19:17,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:19:17,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:19:17,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:19:17,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:19:17,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:19:17,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:19:17,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:19:17,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:19:17,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:19:17,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:19:17,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:19:17,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:19:17,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:19:17,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:19:17,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:19:17,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:19:17,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:19:17,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:19:17,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:19:17,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:19:17,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:19:17,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:19:17,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:19:17,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:19:17,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:19:17,915 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:19:17,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:19:17,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:19:17,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:19:17,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:19:17,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:19:17,916 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:19:17,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:19:17,916 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:19:17,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:19:17,916 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:19:17,916 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:19:17,917 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:19:17,917 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:19:17,917 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:19:17,917 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:19:17,917 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:19:17,917 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:19:17,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:19:17,918 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:19:17,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:19:17,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:19:17,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:19:17,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:19:17,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:19:17,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:19:17,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:19:17,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:19:17,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:19:17,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:19:17,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:19:17,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:19:17,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:19:17,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:19:17,920 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:19:17,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:19:17,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:19:17,920 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:19:17,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:19:17,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:19:17,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:19:17,920 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_87b0657c-3c37-427f-a5e0-58d5e084d4fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 [2022-12-14 08:19:18,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:19:18,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:19:18,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:19:18,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:19:18,119 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:19:18,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2022-12-14 08:19:20,758 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:19:20,957 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:19:20,957 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2022-12-14 08:19:20,969 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/data/435f13ae8/32f6cea3935d42bfbb0d948fccaaa934/FLAG7424ac3d6 [2022-12-14 08:19:20,980 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/data/435f13ae8/32f6cea3935d42bfbb0d948fccaaa934 [2022-12-14 08:19:20,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:19:20,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:19:20,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:19:20,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:19:20,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:19:20,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:19:20" (1/1) ... [2022-12-14 08:19:20,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752819f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:20, skipping insertion in model container [2022-12-14 08:19:20,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:19:20" (1/1) ... [2022-12-14 08:19:20,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:19:21,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:19:21,173 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,208 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,213 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,225 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,310 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,311 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,314 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,371 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_87b0657c-3c37-427f-a5e0-58d5e084d4fb/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c[64142,64155] [2022-12-14 08:19:21,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:19:21,383 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:19:21,394 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,397 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,398 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,403 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,426 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,427 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,429 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:19:21,455 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_87b0657c-3c37-427f-a5e0-58d5e084d4fb/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c[64142,64155] [2022-12-14 08:19:21,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:19:21,476 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:19:21,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21 WrapperNode [2022-12-14 08:19:21,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:19:21,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:19:21,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:19:21,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:19:21,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,546 INFO L138 Inliner]: procedures = 131, calls = 218, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1018 [2022-12-14 08:19:21,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:19:21,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:19:21,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:19:21,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:19:21,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,593 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:19:21,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:19:21,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:19:21,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:19:21,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (1/1) ... [2022-12-14 08:19:21,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:19:21,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:19:21,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:19:21,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:19:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 08:19:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 08:19:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 08:19:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 08:19:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 08:19:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 08:19:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 08:19:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 08:19:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 08:19:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 08:19:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 08:19:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 08:19:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 08:19:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 08:19:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 08:19:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 08:19:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 08:19:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 08:19:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 08:19:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 08:19:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 08:19:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 08:19:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 08:19:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 08:19:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 08:19:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:19:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 08:19:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 08:19:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 08:19:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 08:19:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 08:19:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 08:19:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 08:19:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 08:19:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 08:19:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 08:19:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 08:19:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 08:19:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 08:19:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 08:19:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 08:19:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 08:19:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 08:19:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 08:19:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 08:19:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 08:19:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:19:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 08:19:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 08:19:21,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:19:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:19:21,818 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:19:21,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:19:22,348 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:19:22,641 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:19:22,641 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:19:22,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:19:22 BoogieIcfgContainer [2022-12-14 08:19:22,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:19:22,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:19:22,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:19:22,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:19:22,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:19:20" (1/3) ... [2022-12-14 08:19:22,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ac2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:19:22, skipping insertion in model container [2022-12-14 08:19:22,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:21" (2/3) ... [2022-12-14 08:19:22,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ac2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:19:22, skipping insertion in model container [2022-12-14 08:19:22,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:19:22" (3/3) ... [2022-12-14 08:19:22,651 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2022-12-14 08:19:22,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:19:22,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:19:22,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:19:22,724 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;@148c7308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:19:22,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:19:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-12-14 08:19:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 08:19:22,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:22,737 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 08:19:22,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:19:22,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:22,741 INFO L85 PathProgramCache]: Analyzing trace with hash -254732240, now seen corresponding path program 1 times [2022-12-14 08:19:22,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:22,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631150495] [2022-12-14 08:19:22,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:22,962 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 08:19:22,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:19:22,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631150495] [2022-12-14 08:19:22,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631150495] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:19:22,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:19:22,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:19:22,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309222096] [2022-12-14 08:19:22,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:19:22,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:19:22,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:19:22,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:19:22,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:19:22,991 INFO L87 Difference]: Start difference. First operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) 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 08:19:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:19:23,099 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2022-12-14 08:19:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:19:23,101 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 08:19:23,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:19:23,109 INFO L225 Difference]: With dead ends: 319 [2022-12-14 08:19:23,109 INFO L226 Difference]: Without dead ends: 198 [2022-12-14 08:19:23,112 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 08:19:23,115 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:19:23,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:19:23,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-12-14 08:19:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-12-14 08:19:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 118 states have internal predecessors, (148), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 08:19:23,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2022-12-14 08:19:23,155 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 64 [2022-12-14 08:19:23,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:19:23,156 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2022-12-14 08:19:23,156 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 08:19:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2022-12-14 08:19:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 08:19:23,158 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:23,158 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 08:19:23,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:19:23,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:19:23,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:23,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1130412697, now seen corresponding path program 1 times [2022-12-14 08:19:23,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:23,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150841280] [2022-12-14 08:19:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:23,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:23,305 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 08:19:23,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:19:23,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150841280] [2022-12-14 08:19:23,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150841280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:19:23,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:19:23,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:19:23,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191635408] [2022-12-14 08:19:23,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:19:23,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:19:23,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:19:23,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:19:23,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:19:23,308 INFO L87 Difference]: Start difference. First operand 198 states and 265 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 08:19:23,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:19:23,405 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2022-12-14 08:19:23,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:19:23,406 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 08:19:23,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:19:23,409 INFO L225 Difference]: With dead ends: 315 [2022-12-14 08:19:23,410 INFO L226 Difference]: Without dead ends: 200 [2022-12-14 08:19:23,412 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 08:19:23,413 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:19:23,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:19:23,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-12-14 08:19:23,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-12-14 08:19:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 08:19:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2022-12-14 08:19:23,429 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 65 [2022-12-14 08:19:23,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:19:23,429 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2022-12-14 08:19:23,429 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 08:19:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2022-12-14 08:19:23,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 08:19:23,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:23,431 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 08:19:23,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:19:23,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:19:23,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:23,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1366150151, now seen corresponding path program 1 times [2022-12-14 08:19:23,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:23,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330897892] [2022-12-14 08:19:23,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:23,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:23,496 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 08:19:23,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:19:23,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330897892] [2022-12-14 08:19:23,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330897892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:19:23,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:19:23,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:19:23,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995802981] [2022-12-14 08:19:23,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:19:23,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:19:23,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:19:23,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:19:23,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:19:23,499 INFO L87 Difference]: Start difference. First operand 200 states and 267 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 08:19:23,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:19:23,590 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2022-12-14 08:19:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:19:23,591 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 08:19:23,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:19:23,592 INFO L225 Difference]: With dead ends: 430 [2022-12-14 08:19:23,592 INFO L226 Difference]: Without dead ends: 248 [2022-12-14 08:19:23,593 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 08:19:23,594 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 57 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:19:23,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 474 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:19:23,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-12-14 08:19:23,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 243. [2022-12-14 08:19:23,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 152 states have internal predecessors, (203), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-12-14 08:19:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 342 transitions. [2022-12-14 08:19:23,609 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 342 transitions. Word has length 70 [2022-12-14 08:19:23,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:19:23,609 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 342 transitions. [2022-12-14 08:19:23,609 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 08:19:23,610 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 342 transitions. [2022-12-14 08:19:23,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 08:19:23,611 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:23,611 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 08:19:23,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:19:23,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:19:23,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:23,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2064780237, now seen corresponding path program 1 times [2022-12-14 08:19:23,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:23,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766904859] [2022-12-14 08:19:23,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:23,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:23,711 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 08:19:23,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:19:23,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766904859] [2022-12-14 08:19:23,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766904859] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:19:23,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56184148] [2022-12-14 08:19:23,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:23,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:19:23,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:19:23,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:19:23,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:19:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:23,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:19:23,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:19:23,990 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 08:19:23,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:19:24,045 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 08:19:24,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56184148] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:19:24,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1772490070] [2022-12-14 08:19:24,061 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 08:19:24,061 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:19:24,063 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:19:24,067 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:19:24,068 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:19:47,592 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 08:19:47,905 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:19:48,218 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:20:31,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1772490070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:20:31,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:20:31,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 08:20:31,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379902918] [2022-12-14 08:20:31,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:20:31,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 08:20:31,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:20:31,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 08:20:31,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 08:20:31,938 INFO L87 Difference]: Start difference. First operand 243 states and 342 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 08:20:38,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:20:38,100 INFO L93 Difference]: Finished difference Result 565 states and 845 transitions. [2022-12-14 08:20:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 08:20:38,101 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 71 [2022-12-14 08:20:38,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:20:38,103 INFO L225 Difference]: With dead ends: 565 [2022-12-14 08:20:38,103 INFO L226 Difference]: Without dead ends: 340 [2022-12-14 08:20:38,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 08:20:38,104 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 103 mSDsluCounter, 3353 mSDsCounter, 0 mSdLazyCounter, 2192 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:20:38,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 3625 Invalid, 2201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2192 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 08:20:38,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-12-14 08:20:38,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 266. [2022-12-14 08:20:38,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 174 states have internal predecessors, (236), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-12-14 08:20:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 375 transitions. [2022-12-14 08:20:38,182 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 375 transitions. Word has length 71 [2022-12-14 08:20:38,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:20:38,182 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 375 transitions. [2022-12-14 08:20:38,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 08:20:38,182 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 375 transitions. [2022-12-14 08:20:38,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 08:20:38,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:20:38,184 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 08:20:38,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:20:38,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:20:38,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:20:38,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:20:38,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1071423480, now seen corresponding path program 1 times [2022-12-14 08:20:38,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:20:38,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033722248] [2022-12-14 08:20:38,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:20:38,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:20:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:20:38,474 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 08:20:38,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:20:38,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033722248] [2022-12-14 08:20:38,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033722248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:20:38,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:20:38,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:20:38,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271639525] [2022-12-14 08:20:38,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:20:38,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:20:38,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:20:38,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:20:38,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:20:38,477 INFO L87 Difference]: Start difference. First operand 266 states and 375 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 08:20:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:20:38,702 INFO L93 Difference]: Finished difference Result 625 states and 914 transitions. [2022-12-14 08:20:38,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:20:38,702 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 08:20:38,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:20:38,705 INFO L225 Difference]: With dead ends: 625 [2022-12-14 08:20:38,705 INFO L226 Difference]: Without dead ends: 383 [2022-12-14 08:20:38,706 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 08:20:38,707 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 55 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:20:38,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 476 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:20:38,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-12-14 08:20:38,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 378. [2022-12-14 08:20:38,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 258 states have (on average 1.441860465116279) internal successors, (372), 261 states have internal predecessors, (372), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2022-12-14 08:20:38,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 561 transitions. [2022-12-14 08:20:38,849 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 561 transitions. Word has length 76 [2022-12-14 08:20:38,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:20:38,850 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 561 transitions. [2022-12-14 08:20:38,850 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 08:20:38,850 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 561 transitions. [2022-12-14 08:20:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 08:20:38,853 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:20:38,853 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 08:20:38,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:20:38,854 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:20:38,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:20:38,854 INFO L85 PathProgramCache]: Analyzing trace with hash -204924017, now seen corresponding path program 1 times [2022-12-14 08:20:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:20:38,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050474318] [2022-12-14 08:20:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:20:38,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:20:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:20:38,994 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 08:20:38,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:20:38,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050474318] [2022-12-14 08:20:38,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050474318] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:20:38,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139386059] [2022-12-14 08:20:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:20:38,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:20:38,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:20:38,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:20:38,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:20:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:20:39,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:20:39,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:20:39,200 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 08:20:39,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:20:39,237 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 08:20:39,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139386059] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:20:39,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [618854122] [2022-12-14 08:20:39,241 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 08:20:39,241 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:20:39,241 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:20:39,241 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:20:39,242 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:21:08,310 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 08:21:08,622 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 08:21:08,925 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 266 for LOIs [2022-12-14 08:21:10,809 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 08:21:10,846 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 268 for LOIs [2022-12-14 08:21:28,972 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-12-14 08:21:29,009 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-12-14 08:21:29,079 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-12-14 08:21:29,124 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 08:21:31,029 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:22:50,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [618854122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:22:50,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:22:50,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [4, 4, 4] total 57 [2022-12-14 08:22:50,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350204251] [2022-12-14 08:22:50,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:22:50,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-14 08:22:50,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:22:50,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-14 08:22:50,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=3018, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 08:22:50,381 INFO L87 Difference]: Start difference. First operand 378 states and 561 transitions. Second operand has 52 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 32 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 08:23:38,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:23:38,086 INFO L93 Difference]: Finished difference Result 883 states and 1367 transitions. [2022-12-14 08:23:38,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-14 08:23:38,087 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 32 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 77 [2022-12-14 08:23:38,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:23:38,089 INFO L225 Difference]: With dead ends: 883 [2022-12-14 08:23:38,089 INFO L226 Difference]: Without dead ends: 568 [2022-12-14 08:23:38,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1101 ImplicationChecksByTransitivity, 108.2s TimeCoverageRelationStatistics Valid=300, Invalid=4670, Unknown=0, NotChecked=0, Total=4970 [2022-12-14 08:23:38,091 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 346 mSDsluCounter, 5923 mSDsCounter, 0 mSdLazyCounter, 6272 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 6169 SdHoareTripleChecker+Invalid, 6323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 6272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:23:38,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 6169 Invalid, 6323 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [51 Valid, 6272 Invalid, 0 Unknown, 0 Unchecked, 18.2s Time] [2022-12-14 08:23:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-12-14 08:23:38,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 481. [2022-12-14 08:23:38,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 344 states have (on average 1.4883720930232558) internal successors, (512), 349 states have internal predecessors, (512), 106 states have call successors, (106), 32 states have call predecessors, (106), 30 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2022-12-14 08:23:38,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 723 transitions. [2022-12-14 08:23:38,322 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 723 transitions. Word has length 77 [2022-12-14 08:23:38,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:23:38,323 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 723 transitions. [2022-12-14 08:23:38,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 32 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 08:23:38,323 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 723 transitions. [2022-12-14 08:23:38,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 08:23:38,324 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:23:38,324 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:23:38,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:23:38,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:23:38,526 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:23:38,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:23:38,528 INFO L85 PathProgramCache]: Analyzing trace with hash -24835654, now seen corresponding path program 1 times [2022-12-14 08:23:38,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:23:38,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269798259] [2022-12-14 08:23:38,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:38,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:23:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:23:38,649 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 08:23:38,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:23:38,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269798259] [2022-12-14 08:23:38,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269798259] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:23:38,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981352980] [2022-12-14 08:23:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:38,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:23:38,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:23:38,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:23:38,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:23:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:23:38,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:23:38,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:23:38,880 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 08:23:38,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:23:38,922 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 08:23:38,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981352980] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:23:38,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1683671994] [2022-12-14 08:23:38,926 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 08:23:38,926 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:23:38,927 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:23:38,927 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:23:38,927 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:24:14,724 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 08:24:15,030 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 233 for LOIs [2022-12-14 08:24:15,091 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 232 for LOIs [2022-12-14 08:24:15,150 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 244 for LOIs [2022-12-14 08:24:16,751 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 08:24:16,809 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 08:24:16,841 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:24:17,153 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 244 for LOIs [2022-12-14 08:24:31,667 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 202 for LOIs [2022-12-14 08:24:31,697 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 224 for LOIs [2022-12-14 08:24:31,760 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 229 for LOIs [2022-12-14 08:24:31,800 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-12-14 08:24:33,537 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:25:25,369 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 424 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:25:54,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1683671994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:25:54,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:25:54,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [4, 4, 4] total 62 [2022-12-14 08:25:54,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246245602] [2022-12-14 08:25:54,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:25:54,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-12-14 08:25:54,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:25:54,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-12-14 08:25:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=3618, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 08:25:54,189 INFO L87 Difference]: Start difference. First operand 481 states and 723 transitions. Second operand has 57 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 08:26:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:26:39,080 INFO L93 Difference]: Finished difference Result 984 states and 1494 transitions. [2022-12-14 08:26:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 08:26:39,081 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 80 [2022-12-14 08:26:39,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:26:39,083 INFO L225 Difference]: With dead ends: 984 [2022-12-14 08:26:39,083 INFO L226 Difference]: Without dead ends: 669 [2022-12-14 08:26:39,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 101.4s TimeCoverageRelationStatistics Valid=269, Invalid=5431, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 08:26:39,085 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 247 mSDsluCounter, 7089 mSDsCounter, 0 mSdLazyCounter, 8979 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 7364 SdHoareTripleChecker+Invalid, 9011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 8979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:26:39,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 7364 Invalid, 9011 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 8979 Invalid, 0 Unknown, 0 Unchecked, 23.3s Time] [2022-12-14 08:26:39,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-12-14 08:26:39,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 565. [2022-12-14 08:26:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 407 states have (on average 1.4717444717444716) internal successors, (599), 415 states have internal predecessors, (599), 119 states have call successors, (119), 42 states have call predecessors, (119), 38 states have return successors, (118), 109 states have call predecessors, (118), 118 states have call successors, (118) [2022-12-14 08:26:39,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 836 transitions. [2022-12-14 08:26:39,426 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 836 transitions. Word has length 80 [2022-12-14 08:26:39,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:26:39,426 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 836 transitions. [2022-12-14 08:26:39,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 08:26:39,427 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 836 transitions. [2022-12-14 08:26:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 08:26:39,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:26:39,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:26:39,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:26:39,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:26:39,630 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:26:39,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:26:39,631 INFO L85 PathProgramCache]: Analyzing trace with hash 408926074, now seen corresponding path program 1 times [2022-12-14 08:26:39,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:26:39,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582183963] [2022-12-14 08:26:39,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:26:39,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:26:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:26:39,749 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 08:26:39,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:26:39,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582183963] [2022-12-14 08:26:39,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582183963] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:26:39,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96292230] [2022-12-14 08:26:39,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:26:39,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:26:39,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:26:39,751 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:26:39,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:26:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:26:39,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:26:39,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:39,977 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 08:26:39,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:26:40,033 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 08:26:40,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96292230] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:26:40,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [608966528] [2022-12-14 08:26:40,036 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 08:26:40,036 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:26:40,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:26:40,037 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:26:40,037 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:27:47,035 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:27:47,339 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 08:27:47,625 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 08:27:47,912 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 244 for LOIs [2022-12-14 08:27:49,463 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 08:27:49,522 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 08:27:49,555 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:27:49,855 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 244 for LOIs [2022-12-14 08:28:15,559 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 225 for LOIs [2022-12-14 08:28:15,598 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 204 for LOIs [2022-12-14 08:28:15,629 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 224 for LOIs [2022-12-14 08:28:15,693 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 229 for LOIs [2022-12-14 08:28:15,731 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 375 for LOIs [2022-12-14 08:28:16,174 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 231 for LOIs [2022-12-14 08:28:16,222 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:30:07,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [608966528] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:30:07,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:30:07,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [4, 4, 4] total 68 [2022-12-14 08:30:07,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152357053] [2022-12-14 08:30:07,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:30:07,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-12-14 08:30:07,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:30:07,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-12-14 08:30:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=4368, Unknown=0, NotChecked=0, Total=4556 [2022-12-14 08:30:07,256 INFO L87 Difference]: Start difference. First operand 565 states and 836 transitions. Second operand has 63 states, 37 states have (on average 1.135135135135135) internal successors, (42), 35 states have internal predecessors, (42), 20 states have call successors, (20), 15 states have call predecessors, (20), 13 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 08:30:51,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:30:51,643 INFO L93 Difference]: Finished difference Result 786 states and 1140 transitions. [2022-12-14 08:30:51,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-12-14 08:30:51,643 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 37 states have (on average 1.135135135135135) internal successors, (42), 35 states have internal predecessors, (42), 20 states have call successors, (20), 15 states have call predecessors, (20), 13 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 86 [2022-12-14 08:30:51,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:30:51,645 INFO L225 Difference]: With dead ends: 786 [2022-12-14 08:30:51,645 INFO L226 Difference]: Without dead ends: 678 [2022-12-14 08:30:51,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 126.7s TimeCoverageRelationStatistics Valid=246, Invalid=5606, Unknown=0, NotChecked=0, Total=5852 [2022-12-14 08:30:51,647 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 219 mSDsluCounter, 7321 mSDsCounter, 0 mSdLazyCounter, 9950 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 7600 SdHoareTripleChecker+Invalid, 9966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 9950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:30:51,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 7600 Invalid, 9966 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 9950 Invalid, 0 Unknown, 0 Unchecked, 27.8s Time] [2022-12-14 08:30:51,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-12-14 08:30:52,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 585. [2022-12-14 08:30:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 419 states have (on average 1.4653937947494033) internal successors, (614), 429 states have internal predecessors, (614), 123 states have call successors, (123), 47 states have call predecessors, (123), 42 states have return successors, (122), 111 states have call predecessors, (122), 122 states have call successors, (122) [2022-12-14 08:30:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 859 transitions. [2022-12-14 08:30:52,043 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 859 transitions. Word has length 86 [2022-12-14 08:30:52,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:30:52,043 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 859 transitions. [2022-12-14 08:30:52,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 37 states have (on average 1.135135135135135) internal successors, (42), 35 states have internal predecessors, (42), 20 states have call successors, (20), 15 states have call predecessors, (20), 13 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 08:30:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 859 transitions. [2022-12-14 08:30:52,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 08:30:52,045 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:30:52,045 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 08:30:52,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:30:52,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 08:30:52,246 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:30:52,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:30:52,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1963912030, now seen corresponding path program 1 times [2022-12-14 08:30:52,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:30:52,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063989654] [2022-12-14 08:30:52,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:30:52,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:30:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:30:52,331 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 08:30:52,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:30:52,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063989654] [2022-12-14 08:30:52,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063989654] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:30:52,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518202465] [2022-12-14 08:30:52,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:30:52,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:30:52,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:30:52,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:30:52,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b0657c-3c37-427f-a5e0-58d5e084d4fb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:30:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:30:52,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:30:52,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:30:52,552 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 08:30:52,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:30:52,584 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 08:30:52,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518202465] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:30:52,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1355924750] [2022-12-14 08:30:52,586 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 08:30:52,586 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:30:52,586 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:30:52,587 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:30:52,587 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:41,333 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:31:41,643 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:31:41,943 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 272 for LOIs [2022-12-14 08:31:43,891 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 240 for LOIs [2022-12-14 08:31:43,931 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 274 for LOIs [2022-12-14 08:32:02,183 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 230 for LOIs [2022-12-14 08:32:02,221 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 08:32:02,293 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 257 for LOIs [2022-12-14 08:32:02,340 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 08:32:04,768 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:32:45,369 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 573 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:33:04,549 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 569 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:33:10,728 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 565 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:33:22,585 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 565 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:33:28,110 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 561 DAG size of output: 427 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)