./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/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_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/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_f0956138-2292-4523-b2dc-4cf675508233/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 e80e5ec358c01b9328a945ffeac50362818d778d67430de128e75eb1cc0d9bc1 --- 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 16:15:07,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:15:07,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:15:07,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:15:07,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:15:07,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:15:07,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:15:07,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:15:07,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:15:07,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:15:07,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:15:07,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:15:07,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:15:07,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:15:07,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:15:07,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:15:07,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:15:07,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:15:07,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:15:07,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:15:07,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:15:07,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:15:07,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:15:07,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:15:07,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:15:07,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:15:07,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:15:07,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:15:07,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:15:07,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:15:07,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:15:07,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:15:07,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:15:07,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:15:07,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:15:07,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:15:07,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:15:07,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:15:07,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:15:07,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:15:07,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:15:07,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 16:15:07,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:15:07,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:15:07,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 16:15:07,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 16:15:07,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:15:07,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 16:15:07,917 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 16:15:07,917 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 16:15:07,917 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 16:15:07,918 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 16:15:07,918 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 16:15:07,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 16:15:07,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 16:15:07,918 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 16:15:07,918 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 16:15:07,918 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 16:15:07,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 16:15:07,919 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 16:15:07,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:15:07,919 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 16:15:07,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:15:07,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 16:15:07,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:15:07,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:15:07,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:15:07,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:15:07,921 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 16:15:07,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:15:07,921 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:15:07,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:15:07,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:15:07,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 16:15:07,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:15:07,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:15:07,922 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 16:15:07,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:15:07,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:15:07,922 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 16:15:07,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:15:07,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:15:07,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 16:15:07,923 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_f0956138-2292-4523-b2dc-4cf675508233/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e80e5ec358c01b9328a945ffeac50362818d778d67430de128e75eb1cc0d9bc1 [2022-12-14 16:15:08,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:15:08,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:15:08,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:15:08,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:15:08,101 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:15:08,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c [2022-12-14 16:15:10,585 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:15:10,840 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:15:10,840 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c [2022-12-14 16:15:10,855 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/data/0f3cb5d6a/970096794bbd4aaea09732ce63710dbe/FLAGa7de252b1 [2022-12-14 16:15:11,145 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/data/0f3cb5d6a/970096794bbd4aaea09732ce63710dbe [2022-12-14 16:15:11,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:15:11,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:15:11,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:15:11,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:15:11,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:15:11,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7253ecf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11, skipping insertion in model container [2022-12-14 16:15:11,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:15:11,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:15:11,444 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,446 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,450 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,541 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,543 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_f0956138-2292-4523-b2dc-4cf675508233/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-12-14 16:15:11,564 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,567 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,568 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,569 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,576 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,577 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:15:11,587 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:15:11,610 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,611 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,613 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,644 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,645 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,646 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_f0956138-2292-4523-b2dc-4cf675508233/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-12-14 16:15:11,653 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,654 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,655 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,655 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,659 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,660 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:15:11,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:15:11,680 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:15:11,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11 WrapperNode [2022-12-14 16:15:11,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:15:11,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:15:11,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:15:11,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:15:11,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,762 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1084 [2022-12-14 16:15:11,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:15:11,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:15:11,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:15:11,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:15:11,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:15:11,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:15:11,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:15:11,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:15:11,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (1/1) ... [2022-12-14 16:15:11,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:15:11,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:15:11,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 16:15:11,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 16:15:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 16:15:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 16:15:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 16:15:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 16:15:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 16:15:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 16:15:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 16:15:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 16:15:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 16:15:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 16:15:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 16:15:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 16:15:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 16:15:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 16:15:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 16:15:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 16:15:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 16:15:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 16:15:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 16:15:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 16:15:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 16:15:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 16:15:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 16:15:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 16:15:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 16:15:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 16:15:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 16:15:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 16:15:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 16:15:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:15:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 16:15:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 16:15:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 16:15:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 16:15:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 16:15:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 16:15:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 16:15:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 16:15:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 16:15:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 16:15:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 16:15:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 16:15:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 16:15:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 16:15:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 16:15:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 16:15:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 16:15:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 16:15:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:15:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 16:15:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 16:15:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 16:15:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 16:15:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:15:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:15:12,062 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:15:12,063 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:15:12,701 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:15:13,015 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:15:13,015 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 16:15:13,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:15:13 BoogieIcfgContainer [2022-12-14 16:15:13,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:15:13,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 16:15:13,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 16:15:13,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 16:15:13,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:15:11" (1/3) ... [2022-12-14 16:15:13,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54065b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:15:13, skipping insertion in model container [2022-12-14 16:15:13,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:15:11" (2/3) ... [2022-12-14 16:15:13,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54065b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:15:13, skipping insertion in model container [2022-12-14 16:15:13,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:15:13" (3/3) ... [2022-12-14 16:15:13,025 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2022-12-14 16:15:13,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 16:15:13,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 16:15:13,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 16:15:13,085 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;@209ee778, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 16:15:13,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 16:15:13,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 119 states have (on average 1.3025210084033614) internal successors, (155), 124 states have internal predecessors, (155), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 16:15:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 16:15:13,099 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:15:13,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:15:13,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:15:13,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:15:13,103 INFO L85 PathProgramCache]: Analyzing trace with hash -771163166, now seen corresponding path program 1 times [2022-12-14 16:15:13,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:15:13,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348398957] [2022-12-14 16:15:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:15:13,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:15:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:15:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:15:13,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:15:13,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348398957] [2022-12-14 16:15:13,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348398957] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:15:13,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:15:13,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 16:15:13,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410199836] [2022-12-14 16:15:13,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:15:13,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 16:15:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:15:13,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 16:15:13,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 16:15:13,369 INFO L87 Difference]: Start difference. First operand has 212 states, 119 states have (on average 1.3025210084033614) internal successors, (155), 124 states have internal predecessors, (155), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 16:15:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:15:13,486 INFO L93 Difference]: Finished difference Result 332 states and 445 transitions. [2022-12-14 16:15:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 16:15:13,488 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 90 [2022-12-14 16:15:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:15:13,496 INFO L225 Difference]: With dead ends: 332 [2022-12-14 16:15:13,496 INFO L226 Difference]: Without dead ends: 209 [2022-12-14 16:15:13,499 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 16:15:13,502 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:15:13,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:15:13,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-12-14 16:15:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-12-14 16:15:13,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 121 states have internal predecessors, (149), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 16:15:13,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2022-12-14 16:15:13,548 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 90 [2022-12-14 16:15:13,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:15:13,549 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2022-12-14 16:15:13,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 16:15:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2022-12-14 16:15:13,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 16:15:13,552 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:15:13,552 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:15:13,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 16:15:13,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:15:13,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:15:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1789643260, now seen corresponding path program 1 times [2022-12-14 16:15:13,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:15:13,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464019853] [2022-12-14 16:15:13,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:15:13,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:15:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:15:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:15:13,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:15:13,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464019853] [2022-12-14 16:15:13,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464019853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:15:13,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:15:13,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 16:15:13,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361824076] [2022-12-14 16:15:13,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:15:13,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:15:13,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:15:13,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:15:13,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:15:13,775 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 16:15:13,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:15:13,894 INFO L93 Difference]: Finished difference Result 328 states and 430 transitions. [2022-12-14 16:15:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:15:13,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 91 [2022-12-14 16:15:13,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:15:13,897 INFO L225 Difference]: With dead ends: 328 [2022-12-14 16:15:13,897 INFO L226 Difference]: Without dead ends: 211 [2022-12-14 16:15:13,898 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 16:15:13,900 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:15:13,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:15:13,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-12-14 16:15:13,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-12-14 16:15:13,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 119 states have (on average 1.26890756302521) internal successors, (151), 123 states have internal predecessors, (151), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 16:15:13,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2022-12-14 16:15:13,922 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 91 [2022-12-14 16:15:13,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:15:13,922 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2022-12-14 16:15:13,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 16:15:13,923 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2022-12-14 16:15:13,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 16:15:13,926 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:15:13,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:15:13,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 16:15:13,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:15:13,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:15:13,927 INFO L85 PathProgramCache]: Analyzing trace with hash -638679785, now seen corresponding path program 1 times [2022-12-14 16:15:13,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:15:13,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772106644] [2022-12-14 16:15:13,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:15:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:15:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:15:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 16:15:14,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:15:14,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772106644] [2022-12-14 16:15:14,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772106644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:15:14,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:15:14,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 16:15:14,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147234015] [2022-12-14 16:15:14,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:15:14,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:15:14,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:15:14,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:15:14,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:15:14,052 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 16:15:14,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:15:14,179 INFO L93 Difference]: Finished difference Result 457 states and 631 transitions. [2022-12-14 16:15:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:15:14,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-12-14 16:15:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:15:14,182 INFO L225 Difference]: With dead ends: 457 [2022-12-14 16:15:14,182 INFO L226 Difference]: Without dead ends: 264 [2022-12-14 16:15:14,183 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 16:15:14,184 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 59 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:15:14,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 498 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:15:14,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-12-14 16:15:14,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 259. [2022-12-14 16:15:14,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 153 states have (on average 1.34640522875817) internal successors, (206), 157 states have internal predecessors, (206), 80 states have call successors, (80), 25 states have call predecessors, (80), 25 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-12-14 16:15:14,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 365 transitions. [2022-12-14 16:15:14,207 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 365 transitions. Word has length 85 [2022-12-14 16:15:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:15:14,208 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 365 transitions. [2022-12-14 16:15:14,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 16:15:14,208 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 365 transitions. [2022-12-14 16:15:14,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 16:15:14,210 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:15:14,211 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:15:14,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 16:15:14,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:15:14,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:15:14,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2010657521, now seen corresponding path program 1 times [2022-12-14 16:15:14,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:15:14,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399029621] [2022-12-14 16:15:14,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:15:14,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:15:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:15:14,410 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:15:14,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:15:14,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399029621] [2022-12-14 16:15:14,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399029621] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:15:14,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744027538] [2022-12-14 16:15:14,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:15:14,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:15:14,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:15:14,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:15:14,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 16:15:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:15:14,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:15:14,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:15:14,720 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:15:14,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:15:14,784 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:15:14,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744027538] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:15:14,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [728743744] [2022-12-14 16:15:14,805 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-12-14 16:15:14,805 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:15:14,809 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:15:14,814 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:15:14,814 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:15:44,574 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 16:15:44,862 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 260 for LOIs [2022-12-14 16:15:46,445 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 16:15:46,731 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 262 for LOIs [2022-12-14 16:15:47,358 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 240 for LOIs [2022-12-14 16:15:47,395 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 240 for LOIs [2022-12-14 16:15:47,431 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 230 for LOIs [2022-12-14 16:15:47,466 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:16:30,574 WARN L233 SmtUtils]: Spent 9.40s on a formula simplification. DAG size of input: 589 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:16:48,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [728743744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:48,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 16:16:48,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [4, 4, 4] total 43 [2022-12-14 16:16:48,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420963489] [2022-12-14 16:16:48,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:48,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-14 16:16:48,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:48,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-14 16:16:48,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1693, Unknown=0, NotChecked=0, Total=1806 [2022-12-14 16:16:48,717 INFO L87 Difference]: Start difference. First operand 259 states and 365 transitions. Second operand has 38 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 24 states have internal predecessors, (47), 12 states have call successors, (22), 8 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 16:16:56,844 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 502 DAG size of output: 403 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:17:16,740 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 535 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:17:37,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:37,058 INFO L93 Difference]: Finished difference Result 644 states and 977 transitions. [2022-12-14 16:17:37,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-14 16:17:37,059 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 24 states have internal predecessors, (47), 12 states have call successors, (22), 8 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 97 [2022-12-14 16:17:37,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:37,061 INFO L225 Difference]: With dead ends: 644 [2022-12-14 16:17:37,061 INFO L226 Difference]: Without dead ends: 403 [2022-12-14 16:17:37,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 93.5s TimeCoverageRelationStatistics Valid=181, Invalid=2471, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 16:17:37,062 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 164 mSDsluCounter, 5867 mSDsCounter, 0 mSdLazyCounter, 5817 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 5843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:37,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 6151 Invalid, 5843 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [26 Valid, 5817 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2022-12-14 16:17:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-12-14 16:17:37,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 302. [2022-12-14 16:17:37,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 187 states have (on average 1.3529411764705883) internal successors, (253), 191 states have internal predecessors, (253), 85 states have call successors, (85), 31 states have call predecessors, (85), 29 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2022-12-14 16:17:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 422 transitions. [2022-12-14 16:17:37,167 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 422 transitions. Word has length 97 [2022-12-14 16:17:37,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:37,167 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 422 transitions. [2022-12-14 16:17:37,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 24 states have internal predecessors, (47), 12 states have call successors, (22), 8 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 16:17:37,167 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 422 transitions. [2022-12-14 16:17:37,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 16:17:37,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:37,169 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:17:37,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 16:17:37,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:17:37,371 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:17:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash -743504539, now seen corresponding path program 1 times [2022-12-14 16:17:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:37,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367409108] [2022-12-14 16:17:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:37,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 16:17:37,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:37,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367409108] [2022-12-14 16:17:37,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367409108] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:17:37,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122071245] [2022-12-14 16:17:37,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:37,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:17:37,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:17:37,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:17:37,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 16:17:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:37,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:17:37,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:17:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 16:17:37,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:17:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 16:17:37,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122071245] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:17:37,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1167432409] [2022-12-14 16:17:37,779 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 16:17:37,779 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:17:37,779 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:17:37,779 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:17:37,780 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:18:15,760 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 16:18:16,043 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 471 for LOIs [2022-12-14 16:18:42,679 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-12-14 16:18:42,958 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 16:18:43,242 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-12-14 16:18:46,664 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 269 for LOIs [2022-12-14 16:18:55,050 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 243 for LOIs [2022-12-14 16:18:55,087 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-12-14 16:18:55,680 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 247 for LOIs [2022-12-14 16:18:55,718 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 439 for LOIs [2022-12-14 16:18:55,981 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:21:06,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1167432409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:21:06,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 16:21:06,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [4, 4, 4] total 58 [2022-12-14 16:21:06,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236905115] [2022-12-14 16:21:06,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:21:06,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-14 16:21:06,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:21:06,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-14 16:21:06,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=3154, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 16:21:06,858 INFO L87 Difference]: Start difference. First operand 302 states and 422 transitions. Second operand has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 16:22:10,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:22:10,887 INFO L93 Difference]: Finished difference Result 554 states and 792 transitions. [2022-12-14 16:22:10,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 16:22:10,888 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 86 [2022-12-14 16:22:10,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:22:10,890 INFO L225 Difference]: With dead ends: 554 [2022-12-14 16:22:10,890 INFO L226 Difference]: Without dead ends: 444 [2022-12-14 16:22:10,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 166.1s TimeCoverageRelationStatistics Valid=265, Invalid=4847, Unknown=0, NotChecked=0, Total=5112 [2022-12-14 16:22:10,892 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 248 mSDsluCounter, 7943 mSDsCounter, 0 mSdLazyCounter, 9726 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 9734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:22:10,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 8229 Invalid, 9734 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 9726 Invalid, 0 Unknown, 0 Unchecked, 28.1s Time] [2022-12-14 16:22:10,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-12-14 16:22:11,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 339. [2022-12-14 16:22:11,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 211 states have (on average 1.3364928909952607) internal successors, (282), 216 states have internal predecessors, (282), 94 states have call successors, (94), 35 states have call predecessors, (94), 33 states have return successors, (94), 89 states have call predecessors, (94), 93 states have call successors, (94) [2022-12-14 16:22:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 470 transitions. [2022-12-14 16:22:11,063 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 470 transitions. Word has length 86 [2022-12-14 16:22:11,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:22:11,064 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 470 transitions. [2022-12-14 16:22:11,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 16:22:11,064 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 470 transitions. [2022-12-14 16:22:11,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-14 16:22:11,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:22:11,066 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:22:11,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 16:22:11,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:22:11,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:22:11,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:22:11,267 INFO L85 PathProgramCache]: Analyzing trace with hash 2013709852, now seen corresponding path program 1 times [2022-12-14 16:22:11,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:22:11,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927504324] [2022-12-14 16:22:11,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:22:11,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:22:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:22:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 16:22:11,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:22:11,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927504324] [2022-12-14 16:22:11,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927504324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:22:11,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:22:11,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 16:22:11,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967749563] [2022-12-14 16:22:11,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:22:11,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:22:11,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:22:11,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:22:11,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:22:11,327 INFO L87 Difference]: Start difference. First operand 339 states and 470 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 16:22:11,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:22:11,718 INFO L93 Difference]: Finished difference Result 780 states and 1120 transitions. [2022-12-14 16:22:11,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:22:11,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 102 [2022-12-14 16:22:11,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:22:11,720 INFO L225 Difference]: With dead ends: 780 [2022-12-14 16:22:11,720 INFO L226 Difference]: Without dead ends: 467 [2022-12-14 16:22:11,721 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 16:22:11,721 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 57 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:22:11,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 508 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:22:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-12-14 16:22:11,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 460. [2022-12-14 16:22:11,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 301 states have (on average 1.4019933554817277) internal successors, (422), 306 states have internal predecessors, (422), 125 states have call successors, (125), 35 states have call predecessors, (125), 33 states have return successors, (125), 120 states have call predecessors, (125), 124 states have call successors, (125) [2022-12-14 16:22:11,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 672 transitions. [2022-12-14 16:22:11,971 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 672 transitions. Word has length 102 [2022-12-14 16:22:11,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:22:11,971 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 672 transitions. [2022-12-14 16:22:11,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 16:22:11,971 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 672 transitions. [2022-12-14 16:22:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 16:22:11,973 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:22:11,973 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:22:11,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 16:22:11,973 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:22:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:22:11,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1053244361, now seen corresponding path program 1 times [2022-12-14 16:22:11,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:22:11,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988332140] [2022-12-14 16:22:11,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:22:11,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:22:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:22:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:22:12,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:22:12,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988332140] [2022-12-14 16:22:12,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988332140] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:22:12,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358443020] [2022-12-14 16:22:12,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:22:12,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:22:12,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:22:12,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:22:12,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 16:22:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:22:12,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:22:12,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:22:12,289 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:22:12,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:22:12,335 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:22:12,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358443020] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:22:12,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [822142950] [2022-12-14 16:22:12,339 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 16:22:12,339 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:22:12,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:22:12,339 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:22:12,339 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:22:53,304 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 16:22:53,586 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 485 for LOIs [2022-12-14 16:22:56,513 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:23:42,374 WARN L233 SmtUtils]: Spent 11.42s on a formula simplification. DAG size of input: 593 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:23:49,701 WARN L233 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 595 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:24:09,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [822142950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:24:09,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 16:24:09,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2022-12-14 16:24:09,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48817010] [2022-12-14 16:24:09,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:24:09,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 16:24:09,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:24:09,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 16:24:09,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2022-12-14 16:24:09,400 INFO L87 Difference]: Start difference. First operand 460 states and 672 transitions. Second operand has 24 states, 19 states have (on average 2.473684210526316) internal successors, (47), 17 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-12-14 16:24:18,377 WARN L233 SmtUtils]: Spent 7.77s on a formula simplification. DAG size of input: 475 DAG size of output: 445 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:24:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:24:47,822 INFO L93 Difference]: Finished difference Result 886 states and 1336 transitions. [2022-12-14 16:24:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 16:24:47,823 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 2.473684210526316) internal successors, (47), 17 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 92 [2022-12-14 16:24:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:24:47,825 INFO L225 Difference]: With dead ends: 886 [2022-12-14 16:24:47,825 INFO L226 Difference]: Without dead ends: 545 [2022-12-14 16:24:47,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 102.8s TimeCoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 16:24:47,826 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 160 mSDsluCounter, 3421 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 3657 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-12-14 16:24:47,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 3657 Invalid, 2403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-12-14 16:24:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-12-14 16:24:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 490. [2022-12-14 16:24:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 329 states have (on average 1.4072948328267476) internal successors, (463), 334 states have internal predecessors, (463), 126 states have call successors, (126), 36 states have call predecessors, (126), 34 states have return successors, (126), 121 states have call predecessors, (126), 125 states have call successors, (126) [2022-12-14 16:24:48,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 715 transitions. [2022-12-14 16:24:48,113 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 715 transitions. Word has length 92 [2022-12-14 16:24:48,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:24:48,113 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 715 transitions. [2022-12-14 16:24:48,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 2.473684210526316) internal successors, (47), 17 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-12-14 16:24:48,113 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 715 transitions. [2022-12-14 16:24:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 16:24:48,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:24:48,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:24:48,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 16:24:48,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:24:48,316 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:24:48,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:24:48,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1030317055, now seen corresponding path program 1 times [2022-12-14 16:24:48,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:24:48,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269746559] [2022-12-14 16:24:48,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:24:48,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:24:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:24:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 16:24:48,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:24:48,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269746559] [2022-12-14 16:24:48,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269746559] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:24:48,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704096350] [2022-12-14 16:24:48,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:24:48,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:24:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:24:48,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:24:48,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 16:24:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:24:48,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:24:48,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:24:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 16:24:48,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:24:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 16:24:48,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704096350] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:24:48,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [242213896] [2022-12-14 16:24:48,696 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-12-14 16:24:48,696 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:24:48,696 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:24:48,697 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:24:48,697 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:26:45,081 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 16:26:45,358 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-12-14 16:26:45,653 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 457 for LOIs [2022-12-14 16:26:45,976 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-12-14 16:26:46,035 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 16:26:46,339 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:27:53,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [242213896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:27:53,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 16:27:53,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 16:27:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094218777] [2022-12-14 16:27:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:27:53,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 16:27:53,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:27:53,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 16:27:53,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1074, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 16:27:53,100 INFO L87 Difference]: Start difference. First operand 490 states and 715 transitions. Second operand has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 16:28:27,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:28:27,571 INFO L93 Difference]: Finished difference Result 933 states and 1407 transitions. [2022-12-14 16:28:27,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-14 16:28:27,572 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 95 [2022-12-14 16:28:27,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:28:27,575 INFO L225 Difference]: With dead ends: 933 [2022-12-14 16:28:27,575 INFO L226 Difference]: Without dead ends: 592 [2022-12-14 16:28:27,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 87.9s TimeCoverageRelationStatistics Valid=204, Invalid=1688, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 16:28:27,577 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 127 mSDsluCounter, 4150 mSDsCounter, 0 mSdLazyCounter, 3849 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 4398 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:28:27,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 4398 Invalid, 3865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3849 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-12-14 16:28:27,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-12-14 16:28:27,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 528. [2022-12-14 16:28:27,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 361 states have (on average 1.407202216066482) internal successors, (508), 366 states have internal predecessors, (508), 129 states have call successors, (129), 39 states have call predecessors, (129), 37 states have return successors, (129), 124 states have call predecessors, (129), 128 states have call successors, (129) [2022-12-14 16:28:27,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 766 transitions. [2022-12-14 16:28:27,930 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 766 transitions. Word has length 95 [2022-12-14 16:28:27,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:28:27,930 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 766 transitions. [2022-12-14 16:28:27,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 16:28:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 766 transitions. [2022-12-14 16:28:27,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 16:28:27,931 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:28:27,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:28:27,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 16:28:28,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:28:28,133 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:28:28,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:28:28,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1522857055, now seen corresponding path program 1 times [2022-12-14 16:28:28,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:28:28,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248827708] [2022-12-14 16:28:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:28:28,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:28:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:28:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:28:28,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:28:28,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248827708] [2022-12-14 16:28:28,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248827708] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:28:28,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907605556] [2022-12-14 16:28:28,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:28:28,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:28:28,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:28:28,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:28:28,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0956138-2292-4523-b2dc-4cf675508233/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 16:28:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:28:28,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:28:28,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:28:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:28:28,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:28:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 16:28:28,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907605556] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:28:28,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [707801713] [2022-12-14 16:28:28,546 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2022-12-14 16:28:28,546 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:28:28,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:28:28,546 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:28:28,546 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:29:20,734 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 16:29:21,015 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs