./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product15.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_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/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_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/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_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/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 68503ade3bb1f8128c7da84cd7c3e560bf5cd62b2b0df855f3aa4d33b9063aa0 --- 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 14:11:23,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:11:23,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:11:23,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:11:23,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:11:23,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:11:23,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:11:23,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:11:23,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:11:23,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:11:23,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:11:23,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:11:23,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:11:23,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:11:23,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:11:23,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:11:23,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:11:23,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:11:23,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:11:23,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:11:23,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:11:23,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:11:23,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:11:23,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:11:23,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:11:23,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:11:23,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:11:23,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:11:23,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:11:23,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:11:23,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:11:23,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:11:23,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:11:23,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:11:23,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:11:23,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:11:23,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:11:23,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:11:23,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:11:23,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:11:23,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:11:23,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:11:23,974 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:11:23,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:11:23,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:11:23,975 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:11:23,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:11:23,982 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:11:23,983 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:11:23,983 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:11:23,983 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:11:23,983 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:11:23,983 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:11:23,983 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:11:23,983 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:11:23,983 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:11:23,983 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:11:23,983 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:11:23,984 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:11:23,984 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:11:23,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:11:23,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:11:23,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:11:23,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:11:23,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:11:23,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:11:23,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:11:23,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:11:23,986 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:11:23,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:11:23,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:11:23,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:11:23,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:11:23,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:11:23,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:11:23,986 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_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68503ade3bb1f8128c7da84cd7c3e560bf5cd62b2b0df855f3aa4d33b9063aa0 [2022-12-14 14:11:24,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:11:24,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:11:24,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:11:24,202 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:11:24,202 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:11:24,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product15.cil.c [2022-12-14 14:11:26,790 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:11:27,009 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:11:27,009 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c [2022-12-14 14:11:27,021 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/data/e4829f38a/a10ce8192648492f8478b38050c3ea58/FLAG1aef88ea2 [2022-12-14 14:11:27,380 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/data/e4829f38a/a10ce8192648492f8478b38050c3ea58 [2022-12-14 14:11:27,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:11:27,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:11:27,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:11:27,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:11:27,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:11:27,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:11:27" (1/1) ... [2022-12-14 14:11:27,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ec9b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:27, skipping insertion in model container [2022-12-14 14:11:27,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:11:27" (1/1) ... [2022-12-14 14:11:27,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:11:27,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:11:27,749 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_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c[34816,34829] [2022-12-14 14:11:27,814 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,816 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,819 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,866 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,874 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,877 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,886 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:11:27,903 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:11:27,954 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_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c[34816,34829] [2022-12-14 14:11:27,967 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,968 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,970 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,989 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,990 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,992 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,997 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:11:27,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:11:28,022 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:11:28,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28 WrapperNode [2022-12-14 14:11:28,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:11:28,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:11:28,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:11:28,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:11:28,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,073 INFO L138 Inliner]: procedures = 125, calls = 196, calls flagged for inlining = 54, calls inlined = 45, statements flattened = 875 [2022-12-14 14:11:28,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:11:28,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:11:28,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:11:28,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:11:28,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,113 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:11:28,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:11:28,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:11:28,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:11:28,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (1/1) ... [2022-12-14 14:11:28,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:11:28,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:28,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:11:28,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:11:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 14:11:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 14:11:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 14:11:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 14:11:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 14:11:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 14:11:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 14:11:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 14:11:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 14:11:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 14:11:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 14:11:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 14:11:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 14:11:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 14:11:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 14:11:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 14:11:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 14:11:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 14:11:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 14:11:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:11:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 14:11:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 14:11:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 14:11:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 14:11:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 14:11:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 14:11:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 14:11:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 14:11:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 14:11:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 14:11:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 14:11:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 14:11:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 14:11:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 14:11:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:11:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 14:11:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 14:11:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:11:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:11:28,322 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:11:28,324 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:11:28,837 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:11:29,084 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:11:29,084 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:11:29,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:11:29 BoogieIcfgContainer [2022-12-14 14:11:29,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:11:29,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:11:29,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:11:29,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:11:29,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:11:27" (1/3) ... [2022-12-14 14:11:29,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ba7d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:11:29, skipping insertion in model container [2022-12-14 14:11:29,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:28" (2/3) ... [2022-12-14 14:11:29,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ba7d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:11:29, skipping insertion in model container [2022-12-14 14:11:29,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:11:29" (3/3) ... [2022-12-14 14:11:29,092 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product15.cil.c [2022-12-14 14:11:29,108 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:11:29,108 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:11:29,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:11:29,150 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;@6173224a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:11:29,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:11:29,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-12-14 14:11:29,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 14:11:29,163 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:29,163 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] [2022-12-14 14:11:29,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:11:29,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:29,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1583527771, now seen corresponding path program 1 times [2022-12-14 14:11:29,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:29,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001794000] [2022-12-14 14:11:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:29,378 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 14:11:29,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:29,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001794000] [2022-12-14 14:11:29,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001794000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:29,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:29,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:11:29,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92432256] [2022-12-14 14:11:29,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:29,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:11:29,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:29,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:11:29,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:11:29,414 INFO L87 Difference]: Start difference. First operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:11:29,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:29,512 INFO L93 Difference]: Finished difference Result 219 states and 294 transitions. [2022-12-14 14:11:29,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:11:29,515 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 14:11:29,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:29,525 INFO L225 Difference]: With dead ends: 219 [2022-12-14 14:11:29,525 INFO L226 Difference]: Without dead ends: 148 [2022-12-14 14:11:29,529 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 14:11:29,532 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:29,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:11:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-14 14:11:29,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-12-14 14:11:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-12-14 14:11:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 201 transitions. [2022-12-14 14:11:29,582 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 201 transitions. Word has length 56 [2022-12-14 14:11:29,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:29,584 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 201 transitions. [2022-12-14 14:11:29,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:11:29,584 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 201 transitions. [2022-12-14 14:11:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 14:11:29,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:29,587 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] [2022-12-14 14:11:29,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:11:29,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:11:29,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:29,588 INFO L85 PathProgramCache]: Analyzing trace with hash -799510933, now seen corresponding path program 1 times [2022-12-14 14:11:29,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:29,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427712168] [2022-12-14 14:11:29,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:29,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:29,756 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 14:11:29,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:29,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427712168] [2022-12-14 14:11:29,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427712168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:29,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:29,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:11:29,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114683781] [2022-12-14 14:11:29,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:29,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:11:29,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:29,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:11:29,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:11:29,761 INFO L87 Difference]: Start difference. First operand 148 states and 201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:11:29,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:29,852 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2022-12-14 14:11:29,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:11:29,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-12-14 14:11:29,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:29,855 INFO L225 Difference]: With dead ends: 215 [2022-12-14 14:11:29,855 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 14:11:29,856 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 14:11:29,857 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:29,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:11:29,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 14:11:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 14:11:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 93 states have internal predecessors, (120), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-12-14 14:11:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 203 transitions. [2022-12-14 14:11:29,868 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 203 transitions. Word has length 57 [2022-12-14 14:11:29,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:29,869 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 203 transitions. [2022-12-14 14:11:29,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:11:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 203 transitions. [2022-12-14 14:11:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 14:11:29,870 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:29,870 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] [2022-12-14 14:11:29,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:11:29,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:11:29,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:29,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1063936534, now seen corresponding path program 1 times [2022-12-14 14:11:29,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:29,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459697957] [2022-12-14 14:11:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:29,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:29,934 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 14:11:29,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:29,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459697957] [2022-12-14 14:11:29,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459697957] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:29,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:29,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:11:29,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981442165] [2022-12-14 14:11:29,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:29,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:11:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:11:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:11:29,937 INFO L87 Difference]: Start difference. First operand 150 states and 203 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:11:30,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:30,018 INFO L93 Difference]: Finished difference Result 330 states and 465 transitions. [2022-12-14 14:11:30,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:11:30,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-12-14 14:11:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:30,020 INFO L225 Difference]: With dead ends: 330 [2022-12-14 14:11:30,020 INFO L226 Difference]: Without dead ends: 198 [2022-12-14 14:11:30,021 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 14:11:30,022 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 57 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:30,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 357 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:11:30,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-12-14 14:11:30,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 193. [2022-12-14 14:11:30,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 125 states have internal predecessors, (173), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 14:11:30,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 278 transitions. [2022-12-14 14:11:30,036 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 278 transitions. Word has length 62 [2022-12-14 14:11:30,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:30,036 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 278 transitions. [2022-12-14 14:11:30,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:11:30,036 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 278 transitions. [2022-12-14 14:11:30,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 14:11:30,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:30,038 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] [2022-12-14 14:11:30,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:11:30,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:11:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash 210471879, now seen corresponding path program 1 times [2022-12-14 14:11:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:30,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882016270] [2022-12-14 14:11:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:30,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:30,140 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 14:11:30,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:30,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882016270] [2022-12-14 14:11:30,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882016270] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:11:30,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545659167] [2022-12-14 14:11:30,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:30,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:30,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:30,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:11:30,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:11:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:30,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:11:30,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:11:30,416 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 14:11:30,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:11:30,475 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 14:11:30,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545659167] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:11:30,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [566659699] [2022-12-14 14:11:30,491 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 14:11:30,492 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:11:30,494 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:11:30,499 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:11:30,499 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:12:03,836 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 14:12:04,126 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:12:04,417 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-12-14 14:12:05,998 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 14:12:06,035 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-12-14 14:12:09,938 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 233 for LOIs [2022-12-14 14:12:09,976 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 14:12:13,128 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:12:51,057 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 587 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:13:17,468 WARN L233 SmtUtils]: Spent 7.42s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:13:37,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [566659699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:37,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:13:37,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [4, 4, 4] total 45 [2022-12-14 14:13:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960327388] [2022-12-14 14:13:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:37,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-14 14:13:37,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:37,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-14 14:13:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1866, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 14:13:37,079 INFO L87 Difference]: Start difference. First operand 193 states and 278 transitions. Second operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:14:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:14:18,102 INFO L93 Difference]: Finished difference Result 547 states and 866 transitions. [2022-12-14 14:14:18,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-14 14:14:18,103 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 63 [2022-12-14 14:14:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:14:18,105 INFO L225 Difference]: With dead ends: 547 [2022-12-14 14:14:18,105 INFO L226 Difference]: Without dead ends: 372 [2022-12-14 14:14:18,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 145 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 109.5s TimeCoverageRelationStatistics Valid=183, Invalid=2787, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 14:14:18,107 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 266 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 5012 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 4190 SdHoareTripleChecker+Invalid, 5042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:14:18,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 4190 Invalid, 5042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 5012 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2022-12-14 14:14:18,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-12-14 14:14:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 284. [2022-12-14 14:14:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 203 states have (on average 1.4729064039408868) internal successors, (299), 206 states have internal predecessors, (299), 59 states have call successors, (59), 23 states have call predecessors, (59), 21 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 14:14:18,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 416 transitions. [2022-12-14 14:14:18,247 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 416 transitions. Word has length 63 [2022-12-14 14:14:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:14:18,248 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 416 transitions. [2022-12-14 14:14:18,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:14:18,248 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 416 transitions. [2022-12-14 14:14:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 14:14:18,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:14:18,250 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] [2022-12-14 14:14:18,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:14:18,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:14:18,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:14:18,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:14:18,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2099829855, now seen corresponding path program 1 times [2022-12-14 14:14:18,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:14:18,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145283338] [2022-12-14 14:14:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:14:18,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:14:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:14:18,556 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 14:14:18,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:14:18,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145283338] [2022-12-14 14:14:18,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145283338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:14:18,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:14:18,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:14:18,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540686038] [2022-12-14 14:14:18,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:14:18,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:14:18,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:14:18,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:14:18,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:14:18,557 INFO L87 Difference]: Start difference. First operand 284 states and 416 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:14:18,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:14:18,824 INFO L93 Difference]: Finished difference Result 635 states and 957 transitions. [2022-12-14 14:14:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:14:18,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2022-12-14 14:14:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:14:18,828 INFO L225 Difference]: With dead ends: 635 [2022-12-14 14:14:18,828 INFO L226 Difference]: Without dead ends: 398 [2022-12-14 14:14:18,828 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 14:14:18,829 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 55 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:14:18,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 367 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:14:18,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-12-14 14:14:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 391. [2022-12-14 14:14:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 285 states have (on average 1.4982456140350877) internal successors, (427), 288 states have internal predecessors, (427), 84 states have call successors, (84), 23 states have call predecessors, (84), 21 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2022-12-14 14:14:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 594 transitions. [2022-12-14 14:14:19,003 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 594 transitions. Word has length 68 [2022-12-14 14:14:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:14:19,003 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 594 transitions. [2022-12-14 14:14:19,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:14:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 594 transitions. [2022-12-14 14:14:19,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 14:14:19,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:14:19,005 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] [2022-12-14 14:14:19,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:14:19,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:14:19,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:14:19,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2055801957, now seen corresponding path program 1 times [2022-12-14 14:14:19,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:14:19,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534030259] [2022-12-14 14:14:19,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:14:19,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:14:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:14:19,092 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 14:14:19,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:14:19,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534030259] [2022-12-14 14:14:19,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534030259] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:14:19,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300886634] [2022-12-14 14:14:19,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:14:19,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:14:19,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:14:19,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:14:19,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:14:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:14:19,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:14:19,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:14:19,291 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 14:14:19,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:14:19,323 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 14:14:19,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300886634] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:14:19,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1150363378] [2022-12-14 14:14:19,327 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 14:14:19,327 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:14:19,328 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:14:19,328 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:14:19,328 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:14:49,298 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 14:14:49,588 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 14:14:49,891 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 254 for LOIs [2022-12-14 14:14:51,365 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 14:14:51,401 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2022-12-14 14:14:55,214 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-12-14 14:14:55,246 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 14:14:57,012 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:15:41,592 WARN L233 SmtUtils]: Spent 11.77s on a formula simplification. DAG size of input: 588 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:16:11,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1150363378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:11,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:16:11,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [4, 4, 4] total 49 [2022-12-14 14:16:11,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719540061] [2022-12-14 14:16:11,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:11,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-14 14:16:11,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:11,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-14 14:16:11,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=2208, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 14:16:11,707 INFO L87 Difference]: Start difference. First operand 391 states and 594 transitions. Second operand has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:16:24,083 WARN L233 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 483 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:16:52,155 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 584 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:16:58,398 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 586 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:17:13,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:17:13,007 INFO L93 Difference]: Finished difference Result 784 states and 1215 transitions. [2022-12-14 14:17:13,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-14 14:17:13,007 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 69 [2022-12-14 14:17:13,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:17:13,011 INFO L225 Difference]: With dead ends: 784 [2022-12-14 14:17:13,011 INFO L226 Difference]: Without dead ends: 519 [2022-12-14 14:17:13,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 121.3s TimeCoverageRelationStatistics Valid=254, Invalid=3528, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 14:17:13,014 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 221 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 4924 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 4217 SdHoareTripleChecker+Invalid, 4954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:17:13,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 4217 Invalid, 4954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 4924 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2022-12-14 14:17:13,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-12-14 14:17:13,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 414. [2022-12-14 14:17:13,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 305 states have (on average 1.498360655737705) internal successors, (457), 309 states have internal predecessors, (457), 86 states have call successors, (86), 24 states have call predecessors, (86), 22 states have return successors, (85), 82 states have call predecessors, (85), 85 states have call successors, (85) [2022-12-14 14:17:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 628 transitions. [2022-12-14 14:17:13,258 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 628 transitions. Word has length 69 [2022-12-14 14:17:13,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:17:13,259 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 628 transitions. [2022-12-14 14:17:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:17:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 628 transitions. [2022-12-14 14:17:13,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 14:17:13,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:17:13,261 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] [2022-12-14 14:17:13,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:17:13,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:17:13,463 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:17:13,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:17:13,464 INFO L85 PathProgramCache]: Analyzing trace with hash -725187623, now seen corresponding path program 1 times [2022-12-14 14:17:13,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:17:13,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947347986] [2022-12-14 14:17:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:17:13,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:17:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:17:13,600 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 14:17:13,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:17:13,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947347986] [2022-12-14 14:17:13,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947347986] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:17:13,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921952390] [2022-12-14 14:17:13,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:17:13,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:17:13,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:17:13,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:17:13,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:17:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:17:13,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:17:13,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:17:13,812 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 14:17:13,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:17:13,849 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 14:17:13,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921952390] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:17:13,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1963045836] [2022-12-14 14:17:13,853 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 14:17:13,853 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:17:13,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:17:13,853 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:17:13,854 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:17:44,183 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:17:44,470 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 14:17:44,531 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-12-14 14:17:44,591 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:17:44,884 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-12-14 14:17:44,944 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:18:26,746 WARN L233 SmtUtils]: Spent 9.25s on a formula simplification. DAG size of input: 623 DAG size of output: 483 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:18:35,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1963045836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:18:35,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:18:35,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 14:18:35,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19026772] [2022-12-14 14:18:35,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:18:35,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 14:18:35,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:18:35,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 14:18:35,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1019, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 14:18:35,112 INFO L87 Difference]: Start difference. First operand 414 states and 628 transitions. Second operand has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 14:18:41,734 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 541 DAG size of output: 399 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:19:07,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:07,508 INFO L93 Difference]: Finished difference Result 778 states and 1215 transitions. [2022-12-14 14:19:07,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 14:19:07,509 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2022-12-14 14:19:07,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:07,511 INFO L225 Difference]: With dead ends: 778 [2022-12-14 14:19:07,511 INFO L226 Difference]: Without dead ends: 513 [2022-12-14 14:19:07,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 71.9s TimeCoverageRelationStatistics Valid=170, Invalid=1552, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 14:19:07,512 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 169 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:07,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 3099 Invalid, 3424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-12-14 14:19:07,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-12-14 14:19:07,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 451. [2022-12-14 14:19:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 335 states have (on average 1.48955223880597) internal successors, (499), 340 states have internal predecessors, (499), 90 states have call successors, (90), 27 states have call predecessors, (90), 25 states have return successors, (89), 85 states have call predecessors, (89), 89 states have call successors, (89) [2022-12-14 14:19:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 678 transitions. [2022-12-14 14:19:07,822 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 678 transitions. Word has length 72 [2022-12-14 14:19:07,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:07,822 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 678 transitions. [2022-12-14 14:19:07,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 14:19:07,823 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 678 transitions. [2022-12-14 14:19:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 14:19:07,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:07,825 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:19:07,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 14:19:08,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 14:19:08,027 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:19:08,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:08,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1671998267, now seen corresponding path program 1 times [2022-12-14 14:19:08,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:19:08,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420795185] [2022-12-14 14:19:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:08,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:19:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:19:08,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:19:08,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420795185] [2022-12-14 14:19:08,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420795185] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:19:08,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103502620] [2022-12-14 14:19:08,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:08,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:19:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:19:08,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:19:08,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:19:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:08,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:19:08,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:19:08,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:19:08,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103502620] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:08,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [124602282] [2022-12-14 14:19:08,390 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 14:19:08,390 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:19:08,390 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:19:08,390 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:19:08,390 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:19:56,967 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 14:19:57,248 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:19:57,532 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-12-14 14:19:59,014 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 14:19:59,055 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 256 for LOIs [2022-12-14 14:20:13,475 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 228 for LOIs [2022-12-14 14:20:13,507 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 433 for LOIs [2022-12-14 14:20:14,191 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:21:05,639 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 559 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:21:38,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [124602282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:38,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:21:38,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [5, 5, 5] total 49 [2022-12-14 14:21:38,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676032190] [2022-12-14 14:21:38,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:38,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-14 14:21:38,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:38,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-14 14:21:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2203, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 14:21:38,846 INFO L87 Difference]: Start difference. First operand 451 states and 678 transitions. Second operand has 44 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 28 states have internal predecessors, (37), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:22:23,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:23,592 INFO L93 Difference]: Finished difference Result 888 states and 1385 transitions. [2022-12-14 14:22:23,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 14:22:23,593 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 28 states have internal predecessors, (37), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 74 [2022-12-14 14:22:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:23,595 INFO L225 Difference]: With dead ends: 888 [2022-12-14 14:22:23,595 INFO L226 Difference]: Without dead ends: 623 [2022-12-14 14:22:23,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 175 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 112.2s TimeCoverageRelationStatistics Valid=223, Invalid=3199, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 14:22:23,597 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 249 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 5600 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 5641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 5600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:23,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 4322 Invalid, 5641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 5600 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2022-12-14 14:22:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-12-14 14:22:24,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 473. [2022-12-14 14:22:24,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 354 states have (on average 1.4915254237288136) internal successors, (528), 359 states have internal predecessors, (528), 92 states have call successors, (92), 28 states have call predecessors, (92), 26 states have return successors, (91), 87 states have call predecessors, (91), 91 states have call successors, (91) [2022-12-14 14:22:24,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 711 transitions. [2022-12-14 14:22:24,018 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 711 transitions. Word has length 74 [2022-12-14 14:22:24,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:24,018 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 711 transitions. [2022-12-14 14:22:24,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 28 states have internal predecessors, (37), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:22:24,018 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 711 transitions. [2022-12-14 14:22:24,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 14:22:24,019 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:24,019 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 14:22:24,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:22:24,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 14:22:24,221 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:22:24,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:24,222 INFO L85 PathProgramCache]: Analyzing trace with hash -496911044, now seen corresponding path program 1 times [2022-12-14 14:22:24,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:24,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83574218] [2022-12-14 14:22:24,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:24,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:22:25,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:25,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83574218] [2022-12-14 14:22:25,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83574218] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:22:25,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709562354] [2022-12-14 14:22:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:25,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:22:25,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:22:25,124 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:22:25,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e79e8c-cfe6-44e6-ac7c-7602ba64b231/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:22:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:25,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:22:25,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:22:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:22:25,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:22:25,438 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:22:25,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709562354] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:22:25,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2059165437] [2022-12-14 14:22:25,441 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 14:22:25,441 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:22:25,441 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:22:25,441 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:22:25,441 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:24:31,095 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:24:31,388 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 247 for LOIs [2022-12-14 14:24:31,455 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-12-14 14:24:31,776 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:24:32,061 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 262 for LOIs [2022-12-14 14:24:32,137 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 243 for LOIs [2022-12-14 14:24:33,429 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 223 for LOIs [2022-12-14 14:24:33,463 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 245 for LOIs [2022-12-14 14:24:36,601 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 215 for LOIs [2022-12-14 14:24:36,631 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 231 for LOIs [2022-12-14 14:24:36,739 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:25:21,003 WARN L233 SmtUtils]: Spent 10.22s on a formula simplification. DAG size of input: 602 DAG size of output: 492 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:25:26,854 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 642 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)