./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/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_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/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_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/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 b01b58381ce8e0150d6e0f0de264371fec0586e2ead4f1a313de13afba1fd67c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:25:03,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:25:03,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:25:03,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:25:03,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:25:03,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:25:03,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:25:03,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:25:03,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:25:03,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:25:03,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:25:03,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:25:03,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:25:03,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:25:03,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:25:03,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:25:03,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:25:03,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:25:03,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:25:03,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:25:03,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:25:03,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:25:03,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:25:03,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:25:03,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:25:03,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:25:03,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:25:03,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:25:03,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:25:03,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:25:03,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:25:03,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:25:03,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:25:03,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:25:03,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:25:03,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:25:03,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:25:03,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:25:03,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:25:03,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:25:03,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:25:03,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:25:03,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:25:03,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:25:03,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:25:03,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:25:03,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:25:03,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:25:03,938 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:25:03,938 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:25:03,938 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:25:03,938 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:25:03,939 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:25:03,939 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:25:03,939 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:25:03,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:25:03,939 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:25:03,939 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:25:03,939 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:25:03,939 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:25:03,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:25:03,940 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:25:03,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:25:03,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:25:03,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:25:03,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:25:03,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:25:03,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:25:03,941 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:25:03,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:25:03,941 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:25:03,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:25:03,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:25:03,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:25:03,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:25:03,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:25:03,942 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:25:03,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:25:03,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:25:03,942 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:25:03,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:25:03,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:25:03,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:25:03,943 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_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01b58381ce8e0150d6e0f0de264371fec0586e2ead4f1a313de13afba1fd67c [2022-12-14 13:25:04,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:25:04,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:25:04,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:25:04,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:25:04,137 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:25:04,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c [2022-12-14 13:25:06,704 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:25:06,974 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:25:06,975 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c [2022-12-14 13:25:06,989 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/data/de4b50e16/27c4c3f4cd804b8eb315fafc39b0bb61/FLAG59de658d1 [2022-12-14 13:25:07,276 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/data/de4b50e16/27c4c3f4cd804b8eb315fafc39b0bb61 [2022-12-14 13:25:07,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:25:07,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:25:07,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:25:07,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:25:07,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:25:07,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f89120f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07, skipping insertion in model container [2022-12-14 13:25:07,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:25:07,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:25:07,495 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,499 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,503 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,584 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_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c[29813,29826] [2022-12-14 13:25:07,605 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,609 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,619 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,620 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,676 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,677 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:25:07,687 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:25:07,697 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,698 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,700 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,722 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_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c[29813,29826] [2022-12-14 13:25:07,724 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,726 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,729 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,730 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,750 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,751 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:25:07,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:25:07,784 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:25:07,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07 WrapperNode [2022-12-14 13:25:07,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:25:07,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:25:07,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:25:07,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:25:07,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,854 INFO L138 Inliner]: procedures = 129, calls = 211, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1031 [2022-12-14 13:25:07,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:25:07,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:25:07,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:25:07,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:25:07,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,885 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:25:07,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:25:07,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:25:07,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:25:07,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (1/1) ... [2022-12-14 13:25:07,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:25:07,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:25:07,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:25:07,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:25:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 13:25:07,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 13:25:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 13:25:07,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 13:25:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 13:25:07,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 13:25:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 13:25:07,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 13:25:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 13:25:07,953 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 13:25:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 13:25:07,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 13:25:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 13:25:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 13:25:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 13:25:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 13:25:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 13:25:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 13:25:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 13:25:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 13:25:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 13:25:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:25:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 13:25:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 13:25:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 13:25:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 13:25:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 13:25:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 13:25:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 13:25:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 13:25:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 13:25:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 13:25:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 13:25:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 13:25:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 13:25:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 13:25:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:25:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 13:25:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 13:25:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:25:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:25:08,123 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:25:08,124 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:25:08,649 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:25:08,978 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:25:08,978 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:25:08,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:25:08 BoogieIcfgContainer [2022-12-14 13:25:08,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:25:08,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:25:08,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:25:08,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:25:08,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:25:07" (1/3) ... [2022-12-14 13:25:08,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8317c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:25:08, skipping insertion in model container [2022-12-14 13:25:08,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:25:07" (2/3) ... [2022-12-14 13:25:08,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8317c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:25:08, skipping insertion in model container [2022-12-14 13:25:08,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:25:08" (3/3) ... [2022-12-14 13:25:08,990 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product22.cil.c [2022-12-14 13:25:09,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:25:09,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:25:09,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:25:09,051 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;@ee399d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:25:09,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:25:09,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-12-14 13:25:09,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 13:25:09,067 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:25:09,068 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 13:25:09,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:25:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:25:09,073 INFO L85 PathProgramCache]: Analyzing trace with hash -401124806, now seen corresponding path program 1 times [2022-12-14 13:25:09,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:25:09,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172692651] [2022-12-14 13:25:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:09,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:25:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:09,312 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:25:09,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:25:09,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172692651] [2022-12-14 13:25:09,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172692651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:25:09,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:25:09,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:25:09,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117107716] [2022-12-14 13:25:09,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:25:09,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:25:09,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:25:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:25:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:25:09,349 INFO L87 Difference]: Start difference. First operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) 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 13:25:09,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:25:09,464 INFO L93 Difference]: Finished difference Result 257 states and 348 transitions. [2022-12-14 13:25:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:25:09,466 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 13:25:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:25:09,474 INFO L225 Difference]: With dead ends: 257 [2022-12-14 13:25:09,474 INFO L226 Difference]: Without dead ends: 167 [2022-12-14 13:25:09,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:25:09,479 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:25:09,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:25:09,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-12-14 13:25:09,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-12-14 13:25:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.316326530612245) internal successors, (129), 101 states have internal predecessors, (129), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 13:25:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2022-12-14 13:25:09,516 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 56 [2022-12-14 13:25:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:25:09,517 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2022-12-14 13:25:09,517 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 13:25:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2022-12-14 13:25:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 13:25:09,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:25:09,519 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 13:25:09,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:25:09,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:25:09,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:25:09,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1728317167, now seen corresponding path program 1 times [2022-12-14 13:25:09,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:25:09,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493651923] [2022-12-14 13:25:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:09,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:25:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:25:09,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:25:09,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493651923] [2022-12-14 13:25:09,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493651923] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:25:09,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:25:09,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:25:09,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762156583] [2022-12-14 13:25:09,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:25:09,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:25:09,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:25:09,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:25:09,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:25:09,652 INFO L87 Difference]: Start difference. First operand 167 states and 228 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 13:25:09,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:25:09,745 INFO L93 Difference]: Finished difference Result 253 states and 336 transitions. [2022-12-14 13:25:09,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:25:09,745 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 13:25:09,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:25:09,747 INFO L225 Difference]: With dead ends: 253 [2022-12-14 13:25:09,748 INFO L226 Difference]: Without dead ends: 169 [2022-12-14 13:25:09,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:25:09,750 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:25:09,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:25:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-12-14 13:25:09,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-12-14 13:25:09,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 100 states have (on average 1.31) internal successors, (131), 103 states have internal predecessors, (131), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 13:25:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 230 transitions. [2022-12-14 13:25:09,769 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 230 transitions. Word has length 57 [2022-12-14 13:25:09,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:25:09,769 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 230 transitions. [2022-12-14 13:25:09,770 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 13:25:09,770 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 230 transitions. [2022-12-14 13:25:09,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 13:25:09,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:25:09,772 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 13:25:09,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:25:09,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:25:09,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:25:09,773 INFO L85 PathProgramCache]: Analyzing trace with hash -213778453, now seen corresponding path program 1 times [2022-12-14 13:25:09,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:25:09,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834525789] [2022-12-14 13:25:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:09,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:25:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:25:09,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:25:09,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834525789] [2022-12-14 13:25:09,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834525789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:25:09,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:25:09,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:25:09,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192936522] [2022-12-14 13:25:09,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:25:09,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:25:09,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:25:09,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:25:09,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:25:09,871 INFO L87 Difference]: Start difference. First operand 169 states and 230 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 13:25:09,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:25:09,966 INFO L93 Difference]: Finished difference Result 368 states and 519 transitions. [2022-12-14 13:25:09,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:25:09,967 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 13:25:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:25:09,969 INFO L225 Difference]: With dead ends: 368 [2022-12-14 13:25:09,969 INFO L226 Difference]: Without dead ends: 217 [2022-12-14 13:25:09,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:25:09,972 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 57 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:25:09,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 401 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:25:09,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-12-14 13:25:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2022-12-14 13:25:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 132 states have (on average 1.393939393939394) internal successors, (184), 135 states have internal predecessors, (184), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 13:25:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2022-12-14 13:25:09,995 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 62 [2022-12-14 13:25:09,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:25:09,996 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2022-12-14 13:25:09,996 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 13:25:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2022-12-14 13:25:09,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 13:25:09,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:25:09,998 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 13:25:09,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:25:09,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:25:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:25:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1726434810, now seen corresponding path program 1 times [2022-12-14 13:25:09,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:25:09,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216232845] [2022-12-14 13:25:09,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:09,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:25:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:25:10,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:25:10,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216232845] [2022-12-14 13:25:10,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216232845] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:25:10,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925832903] [2022-12-14 13:25:10,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:10,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:25:10,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:25:10,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:25:10,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:25:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:10,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:25:10,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:25:10,395 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:25:10,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:25:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:25:10,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925832903] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:25:10,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1435463801] [2022-12-14 13:25:10,469 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 13:25:10,469 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:25:10,473 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:25:10,478 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:25:10,479 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:25:42,753 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 13:25:43,057 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:25:43,349 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 470 for LOIs [2022-12-14 13:26:10,144 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-12-14 13:26:10,419 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 468 for LOIs [2022-12-14 13:26:16,862 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 438 for LOIs [2022-12-14 13:26:17,123 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-12-14 13:26:17,750 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:27:04,486 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 565 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:27:15,035 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 567 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:27:59,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1435463801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:27:59,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:27:59,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [4, 4, 4] total 45 [2022-12-14 13:27:59,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863151200] [2022-12-14 13:27:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:27:59,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-14 13:27:59,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:27:59,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-14 13:27:59,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1862, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 13:27:59,054 INFO L87 Difference]: Start difference. First operand 212 states and 305 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 13:28:36,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:28:36,703 INFO L93 Difference]: Finished difference Result 588 states and 926 transitions. [2022-12-14 13:28:36,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-14 13:28:36,704 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 13:28:36,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:28:36,706 INFO L225 Difference]: With dead ends: 588 [2022-12-14 13:28:36,706 INFO L226 Difference]: Without dead ends: 394 [2022-12-14 13:28:36,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 121.9s TimeCoverageRelationStatistics Valid=183, Invalid=2679, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 13:28:36,708 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 211 mSDsluCounter, 4792 mSDsCounter, 0 mSdLazyCounter, 5622 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 5046 SdHoareTripleChecker+Invalid, 5649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 5622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:28:36,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 5046 Invalid, 5649 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [27 Valid, 5622 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2022-12-14 13:28:36,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-12-14 13:28:36,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 298. [2022-12-14 13:28:36,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 208 states have (on average 1.4567307692307692) internal successors, (303), 211 states have internal predecessors, (303), 67 states have call successors, (67), 24 states have call predecessors, (67), 22 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 13:28:36,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 436 transitions. [2022-12-14 13:28:36,852 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 436 transitions. Word has length 63 [2022-12-14 13:28:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:28:36,853 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 436 transitions. [2022-12-14 13:28:36,853 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 13:28:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 436 transitions. [2022-12-14 13:28:36,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 13:28:36,855 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:28:36,855 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 13:28:36,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:28:37,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-14 13:28:37,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:28:37,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:28:37,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1309115150, now seen corresponding path program 1 times [2022-12-14 13:28:37,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:28:37,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441251492] [2022-12-14 13:28:37,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:28:37,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:28:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:28:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:28:37,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:28:37,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441251492] [2022-12-14 13:28:37,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441251492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:28:37,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:28:37,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:28:37,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203115414] [2022-12-14 13:28:37,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:28:37,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:28:37,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:28:37,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:28:37,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:28:37,153 INFO L87 Difference]: Start difference. First operand 298 states and 436 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 13:28:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:28:37,447 INFO L93 Difference]: Finished difference Result 669 states and 1006 transitions. [2022-12-14 13:28:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:28:37,447 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 13:28:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:28:37,449 INFO L225 Difference]: With dead ends: 669 [2022-12-14 13:28:37,449 INFO L226 Difference]: Without dead ends: 413 [2022-12-14 13:28:37,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:28:37,450 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 55 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:28:37,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 412 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:28:37,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-12-14 13:28:37,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 406. [2022-12-14 13:28:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 291 states have (on average 1.4879725085910653) internal successors, (433), 294 states have internal predecessors, (433), 92 states have call successors, (92), 24 states have call predecessors, (92), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2022-12-14 13:28:37,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 616 transitions. [2022-12-14 13:28:37,640 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 616 transitions. Word has length 68 [2022-12-14 13:28:37,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:28:37,640 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 616 transitions. [2022-12-14 13:28:37,641 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 13:28:37,641 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 616 transitions. [2022-12-14 13:28:37,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 13:28:37,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:28:37,643 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 13:28:37,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:28:37,643 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:28:37,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:28:37,643 INFO L85 PathProgramCache]: Analyzing trace with hash 999844522, now seen corresponding path program 1 times [2022-12-14 13:28:37,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:28:37,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518959503] [2022-12-14 13:28:37,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:28:37,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:28:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:28:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:28:37,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:28:37,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518959503] [2022-12-14 13:28:37,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518959503] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:28:37,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557051905] [2022-12-14 13:28:37,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:28:37,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:28:37,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:28:37,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:28:37,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:28:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:28:37,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:28:37,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:28:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:28:37,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:28:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:28:38,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557051905] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:28:38,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1566329518] [2022-12-14 13:28:38,010 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 13:28:38,010 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:28:38,011 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:28:38,011 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:28:38,011 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:29:04,451 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 13:29:04,733 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 13:29:05,010 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 252 for LOIs [2022-12-14 13:29:06,444 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-12-14 13:29:06,479 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 252 for LOIs [2022-12-14 13:29:10,166 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 224 for LOIs [2022-12-14 13:29:10,196 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 13:29:11,891 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:30:16,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1566329518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:16,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:30:16,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [4, 4, 4] total 49 [2022-12-14 13:30:16,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425431906] [2022-12-14 13:30:16,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:16,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-14 13:30:16,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:16,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-14 13:30:16,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2200, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 13:30:16,755 INFO L87 Difference]: Start difference. First operand 406 states and 616 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 13:30:44,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:44,662 INFO L93 Difference]: Finished difference Result 827 states and 1277 transitions. [2022-12-14 13:30:44,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-14 13:30:44,663 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 13:30:44,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:44,667 INFO L225 Difference]: With dead ends: 827 [2022-12-14 13:30:44,668 INFO L226 Difference]: Without dead ends: 543 [2022-12-14 13:30:44,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 76.9s TimeCoverageRelationStatistics Valid=267, Invalid=3393, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 13:30:44,669 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 241 mSDsluCounter, 5161 mSDsCounter, 0 mSdLazyCounter, 5627 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 5658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 5627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:44,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 5395 Invalid, 5658 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 5627 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2022-12-14 13:30:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-12-14 13:30:44,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 419. [2022-12-14 13:30:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 301 states have (on average 1.4883720930232558) internal successors, (448), 305 states have internal predecessors, (448), 94 states have call successors, (94), 25 states have call predecessors, (94), 23 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2022-12-14 13:30:44,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 635 transitions. [2022-12-14 13:30:44,904 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 635 transitions. Word has length 69 [2022-12-14 13:30:44,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:44,905 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 635 transitions. [2022-12-14 13:30:44,905 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 13:30:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 635 transitions. [2022-12-14 13:30:44,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 13:30:44,906 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:44,906 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 13:30:44,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:30:45,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 13:30:45,107 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:30:45,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:45,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1268879538, now seen corresponding path program 1 times [2022-12-14 13:30:45,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:45,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748209069] [2022-12-14 13:30:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:45,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:45,209 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:30:45,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:45,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748209069] [2022-12-14 13:30:45,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748209069] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:30:45,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202885434] [2022-12-14 13:30:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:45,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:45,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:45,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:45,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:30:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:45,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:30:45,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:30:45,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:30:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:30:45,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202885434] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:30:45,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2040341616] [2022-12-14 13:30:45,472 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 13:30:45,472 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:30:45,472 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:30:45,472 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:30:45,472 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:31:21,533 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 13:31:21,812 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2022-12-14 13:31:21,871 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 251 for LOIs [2022-12-14 13:31:21,947 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:31:22,235 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 446 for LOIs [2022-12-14 13:31:22,528 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:32:10,053 WARN L233 SmtUtils]: Spent 11.98s on a formula simplification. DAG size of input: 636 DAG size of output: 513 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:32:21,160 WARN L233 SmtUtils]: Spent 10.81s on a formula simplification. DAG size of input: 638 DAG size of output: 513 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:32:32,409 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 562 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:32:44,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2040341616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:44,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:32:44,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 13:32:44,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90587696] [2022-12-14 13:32:44,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:44,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 13:32:44,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 13:32:44,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 13:32:44,062 INFO L87 Difference]: Start difference. First operand 419 states and 635 transitions. Second operand has 30 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 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 13:32:51,088 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 627 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:33:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:06,119 INFO L93 Difference]: Finished difference Result 822 states and 1285 transitions. [2022-12-14 13:33:06,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 13:33:06,120 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 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 13:33:06,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:06,122 INFO L225 Difference]: With dead ends: 822 [2022-12-14 13:33:06,122 INFO L226 Difference]: Without dead ends: 538 [2022-12-14 13:33:06,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 91.9s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 13:33:06,123 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 163 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 3365 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:06,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3685 Invalid, 3375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3365 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 13:33:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-12-14 13:33:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 491. [2022-12-14 13:33:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 366 states have (on average 1.4972677595628416) internal successors, (548), 371 states have internal predecessors, (548), 98 states have call successors, (98), 28 states have call predecessors, (98), 26 states have return successors, (97), 93 states have call predecessors, (97), 97 states have call successors, (97) [2022-12-14 13:33:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 743 transitions. [2022-12-14 13:33:06,458 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 743 transitions. Word has length 72 [2022-12-14 13:33:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:06,458 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 743 transitions. [2022-12-14 13:33:06,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 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 13:33:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 743 transitions. [2022-12-14 13:33:06,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 13:33:06,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:06,460 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:06,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:33:06,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:33:06,661 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:33:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1561056741, now seen corresponding path program 1 times [2022-12-14 13:33:06,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:33:06,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283098753] [2022-12-14 13:33:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:06,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:33:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:33:06,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:33:06,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283098753] [2022-12-14 13:33:06,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283098753] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:33:06,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106443624] [2022-12-14 13:33:06,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:06,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:33:06,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:33:06,767 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:33:06,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:33:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:06,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:33:06,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:33:06,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:06,968 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:33:06,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106443624] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:06,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [941699291] [2022-12-14 13:33:06,971 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 13:33:06,971 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:33:06,972 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:33:06,972 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:33:06,972 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:33:30,917 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 13:33:31,194 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:33:31,477 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 258 for LOIs [2022-12-14 13:33:32,966 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 238 for LOIs [2022-12-14 13:33:33,004 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 258 for LOIs [2022-12-14 13:33:36,851 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 230 for LOIs [2022-12-14 13:33:36,886 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 13:33:39,913 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:34:35,774 WARN L233 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 472 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:34:56,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [941699291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:34:56,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:34:56,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 13:34:56,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998437546] [2022-12-14 13:34:56,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:34:56,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 13:34:56,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:34:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 13:34:56,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=2554, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 13:34:56,967 INFO L87 Difference]: Start difference. First operand 491 states and 743 transitions. Second operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 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 13:35:38,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:35:38,935 INFO L93 Difference]: Finished difference Result 896 states and 1380 transitions. [2022-12-14 13:35:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 13:35:38,936 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 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 71 [2022-12-14 13:35:38,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:35:38,938 INFO L225 Difference]: With dead ends: 896 [2022-12-14 13:35:38,938 INFO L226 Difference]: Without dead ends: 612 [2022-12-14 13:35:38,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 101.0s TimeCoverageRelationStatistics Valid=443, Invalid=4387, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 13:35:38,940 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 174 mSDsluCounter, 5037 mSDsCounter, 0 mSdLazyCounter, 5893 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 5263 SdHoareTripleChecker+Invalid, 5909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:35:38,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 5263 Invalid, 5909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 5893 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2022-12-14 13:35:38,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-12-14 13:35:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 505. [2022-12-14 13:35:39,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 380 states have (on average 1.5) internal successors, (570), 385 states have internal predecessors, (570), 98 states have call successors, (98), 28 states have call predecessors, (98), 26 states have return successors, (97), 93 states have call predecessors, (97), 97 states have call successors, (97) [2022-12-14 13:35:39,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 765 transitions. [2022-12-14 13:35:39,335 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 765 transitions. Word has length 71 [2022-12-14 13:35:39,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:35:39,335 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 765 transitions. [2022-12-14 13:35:39,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 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 13:35:39,335 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 765 transitions. [2022-12-14 13:35:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 13:35:39,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:35:39,336 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 13:35:39,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:35:39,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:35:39,538 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:35:39,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:35:39,539 INFO L85 PathProgramCache]: Analyzing trace with hash -734263075, now seen corresponding path program 1 times [2022-12-14 13:35:39,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:35:39,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877952100] [2022-12-14 13:35:39,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:35:39,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:35:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:35:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 13:35:39,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:35:39,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877952100] [2022-12-14 13:35:39,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877952100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:35:39,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:35:39,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:35:39,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883822657] [2022-12-14 13:35:39,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:35:39,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:35:39,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:35:39,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:35:39,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:35:39,642 INFO L87 Difference]: Start difference. First operand 505 states and 765 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (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 13:35:40,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:35:40,170 INFO L93 Difference]: Finished difference Result 609 states and 890 transitions. [2022-12-14 13:35:40,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:35:40,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (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 74 [2022-12-14 13:35:40,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:35:40,173 INFO L225 Difference]: With dead ends: 609 [2022-12-14 13:35:40,173 INFO L226 Difference]: Without dead ends: 527 [2022-12-14 13:35:40,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:35:40,175 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 119 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:35:40,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 273 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:35:40,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-12-14 13:35:40,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 525. [2022-12-14 13:35:40,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 390 states have (on average 1.4871794871794872) internal successors, (580), 396 states have internal predecessors, (580), 102 states have call successors, (102), 35 states have call predecessors, (102), 32 states have return successors, (101), 96 states have call predecessors, (101), 101 states have call successors, (101) [2022-12-14 13:35:40,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 783 transitions. [2022-12-14 13:35:40,582 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 783 transitions. Word has length 74 [2022-12-14 13:35:40,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:35:40,582 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 783 transitions. [2022-12-14 13:35:40,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (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 13:35:40,582 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 783 transitions. [2022-12-14 13:35:40,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 13:35:40,585 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:35:40,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:35:40,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 13:35:40,585 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:35:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:35:40,585 INFO L85 PathProgramCache]: Analyzing trace with hash -415414226, now seen corresponding path program 1 times [2022-12-14 13:35:40,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:35:40,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880374681] [2022-12-14 13:35:40,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:35:40,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:35:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:35:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 13:35:40,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:35:40,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880374681] [2022-12-14 13:35:40,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880374681] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:35:40,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629501365] [2022-12-14 13:35:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:35:40,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:35:40,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:35:40,716 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:35:40,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7c7279-5ce2-4430-ace1-2aec023b7f0e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:35:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:35:40,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:35:40,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:35:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 13:35:40,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:35:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 13:35:41,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629501365] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:35:41,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [963568894] [2022-12-14 13:35:41,006 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 13:35:41,006 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:35:41,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:35:41,006 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:35:41,006 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:36:36,182 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:36:36,467 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:36:36,747 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 258 for LOIs [2022-12-14 13:36:39,633 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 238 for LOIs [2022-12-14 13:36:39,671 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 523 for LOIs [2022-12-14 13:36:56,947 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 416 for LOIs [2022-12-14 13:36:57,166 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 419 for LOIs [2022-12-14 13:36:57,394 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 415 for LOIs [2022-12-14 13:36:57,613 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:37:54,050 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 563 DAG size of output: 423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:38:00,265 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 564 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:38:17,971 WARN L233 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 523 DAG size of output: 401 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:38:26,204 WARN L233 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 527 DAG size of output: 405 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)