./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/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_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/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_cca41f63-9ca3-4106-95e0-3559cd238429/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 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d --- 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 15:12:19,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:12:19,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:12:19,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:12:19,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:12:19,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:12:19,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:12:19,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:12:19,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:12:19,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:12:19,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:12:19,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:12:19,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:12:19,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:12:19,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:12:19,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:12:19,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:12:19,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:12:19,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:12:19,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:12:19,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:12:19,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:12:19,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:12:19,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:12:19,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:12:19,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:12:19,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:12:19,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:12:19,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:12:19,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:12:19,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:12:19,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:12:19,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:12:19,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:12:19,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:12:19,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:12:19,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:12:19,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:12:19,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:12:19,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:12:19,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:12:19,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:12:19,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:12:19,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:12:19,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:12:19,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:12:19,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:12:19,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:12:19,887 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:12:19,887 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:12:19,887 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:12:19,888 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:12:19,888 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:12:19,888 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:12:19,888 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:12:19,888 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:12:19,889 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:12:19,889 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:12:19,889 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:12:19,889 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:12:19,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:12:19,890 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:12:19,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:12:19,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:12:19,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:12:19,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:12:19,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:12:19,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:12:19,891 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:12:19,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:12:19,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:12:19,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:12:19,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:12:19,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:12:19,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:12:19,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:12:19,893 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:12:19,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:12:19,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:12:19,894 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:12:19,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:12:19,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:12:19,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:12:19,894 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_cca41f63-9ca3-4106-95e0-3559cd238429/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d [2022-12-14 15:12:20,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:12:20,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:12:20,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:12:20,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:12:20,124 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:12:20,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2022-12-14 15:12:22,774 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:12:22,999 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:12:23,000 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2022-12-14 15:12:23,014 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/data/53e0113db/95072420dcc545489bffa5565c8b0b0a/FLAG421362fac [2022-12-14 15:12:23,027 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/data/53e0113db/95072420dcc545489bffa5565c8b0b0a [2022-12-14 15:12:23,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:12:23,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:12:23,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:12:23,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:12:23,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:12:23,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bceae3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23, skipping insertion in model container [2022-12-14 15:12:23,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:12:23,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:12:23,364 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,385 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,387 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,389 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,394 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_cca41f63-9ca3-4106-95e0-3559cd238429/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c[33239,33252] [2022-12-14 15:12:23,448 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,450 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,458 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,459 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:12:23,469 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:12:23,506 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,508 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,509 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,511 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,529 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_cca41f63-9ca3-4106-95e0-3559cd238429/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c[33239,33252] [2022-12-14 15:12:23,562 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,564 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,569 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,569 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:12:23,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:12:23,597 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:12:23,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23 WrapperNode [2022-12-14 15:12:23,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:12:23,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:12:23,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:12:23,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:12:23,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,658 INFO L138 Inliner]: procedures = 128, calls = 206, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 1017 [2022-12-14 15:12:23,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:12:23,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:12:23,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:12:23,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:12:23,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,689 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:12:23,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:12:23,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:12:23,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:12:23,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (1/1) ... [2022-12-14 15:12:23,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:12:23,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:12:23,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:12:23,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:12:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 15:12:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 15:12:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 15:12:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 15:12:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 15:12:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 15:12:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 15:12:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 15:12:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 15:12:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 15:12:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 15:12:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 15:12:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 15:12:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 15:12:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 15:12:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 15:12:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 15:12:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 15:12:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 15:12:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 15:12:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 15:12:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:12:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 15:12:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 15:12:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 15:12:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 15:12:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 15:12:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 15:12:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 15:12:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 15:12:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 15:12:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 15:12:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 15:12:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 15:12:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 15:12:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 15:12:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:12:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 15:12:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 15:12:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:12:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:12:23,932 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:12:23,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:12:24,491 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:12:24,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:12:24,815 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:12:24,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:12:24 BoogieIcfgContainer [2022-12-14 15:12:24,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:12:24,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:12:24,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:12:24,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:12:24,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:12:23" (1/3) ... [2022-12-14 15:12:24,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3371be97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:12:24, skipping insertion in model container [2022-12-14 15:12:24,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:23" (2/3) ... [2022-12-14 15:12:24,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3371be97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:12:24, skipping insertion in model container [2022-12-14 15:12:24,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:12:24" (3/3) ... [2022-12-14 15:12:24,826 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product22.cil.c [2022-12-14 15:12:24,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:12:24,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:12:24,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:12:24,899 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;@48dd1bcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:12:24,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:12:24,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-12-14 15:12:24,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 15:12:24,912 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:12:24,912 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:12:24,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:12:24,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:12:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1969156312, now seen corresponding path program 1 times [2022-12-14 15:12:24,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:12:24,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955305757] [2022-12-14 15:12:24,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:24,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:12:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:12:25,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:12:25,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955305757] [2022-12-14 15:12:25,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955305757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:12:25,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:12:25,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:12:25,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449688507] [2022-12-14 15:12:25,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:12:25,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:12:25,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:12:25,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:12:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:12:25,220 INFO L87 Difference]: Start difference. First operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 15:12:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:12:25,330 INFO L93 Difference]: Finished difference Result 257 states and 348 transitions. [2022-12-14 15:12:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:12:25,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 15:12:25,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:12:25,344 INFO L225 Difference]: With dead ends: 257 [2022-12-14 15:12:25,344 INFO L226 Difference]: Without dead ends: 167 [2022-12-14 15:12:25,348 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 15:12:25,351 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:12:25,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:12:25,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-12-14 15:12:25,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-12-14 15:12:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.316326530612245) internal successors, (129), 101 states have internal predecessors, (129), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 15:12:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2022-12-14 15:12:25,417 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 56 [2022-12-14 15:12:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:12:25,419 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2022-12-14 15:12:25,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 15:12:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2022-12-14 15:12:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 15:12:25,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:12:25,423 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:12:25,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:12:25,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:12:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:12:25,424 INFO L85 PathProgramCache]: Analyzing trace with hash 458160130, now seen corresponding path program 1 times [2022-12-14 15:12:25,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:12:25,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843710967] [2022-12-14 15:12:25,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:25,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:12:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:12:25,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:12:25,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843710967] [2022-12-14 15:12:25,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843710967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:12:25,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:12:25,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:12:25,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221390881] [2022-12-14 15:12:25,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:12:25,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:12:25,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:12:25,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:12:25,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:12:25,632 INFO L87 Difference]: Start difference. First operand 167 states and 228 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 15:12:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:12:25,738 INFO L93 Difference]: Finished difference Result 253 states and 336 transitions. [2022-12-14 15:12:25,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:12:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-12-14 15:12:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:12:25,741 INFO L225 Difference]: With dead ends: 253 [2022-12-14 15:12:25,741 INFO L226 Difference]: Without dead ends: 169 [2022-12-14 15:12:25,742 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 15:12:25,743 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:12:25,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:12:25,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-12-14 15:12:25,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-12-14 15:12:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 100 states have (on average 1.31) internal successors, (131), 103 states have internal predecessors, (131), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 15:12:25,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 230 transitions. [2022-12-14 15:12:25,762 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 230 transitions. Word has length 57 [2022-12-14 15:12:25,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:12:25,762 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 230 transitions. [2022-12-14 15:12:25,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 15:12:25,762 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 230 transitions. [2022-12-14 15:12:25,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 15:12:25,764 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:12:25,764 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:12:25,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:12:25,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:12:25,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:12:25,765 INFO L85 PathProgramCache]: Analyzing trace with hash 418605661, now seen corresponding path program 1 times [2022-12-14 15:12:25,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:12:25,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308522974] [2022-12-14 15:12:25,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:25,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:12:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:12:25,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:12:25,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308522974] [2022-12-14 15:12:25,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308522974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:12:25,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:12:25,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:12:25,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691288805] [2022-12-14 15:12:25,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:12:25,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:12:25,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:12:25,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:12:25,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:12:25,886 INFO L87 Difference]: Start difference. First operand 169 states and 230 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 15:12:25,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:12:25,980 INFO L93 Difference]: Finished difference Result 368 states and 519 transitions. [2022-12-14 15:12:25,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:12:25,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-12-14 15:12:25,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:12:25,982 INFO L225 Difference]: With dead ends: 368 [2022-12-14 15:12:25,983 INFO L226 Difference]: Without dead ends: 217 [2022-12-14 15:12:25,984 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 15:12:25,985 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 57 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:12:25,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 400 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:12:25,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-12-14 15:12:26,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2022-12-14 15:12:26,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 132 states have (on average 1.393939393939394) internal successors, (184), 135 states have internal predecessors, (184), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 15:12:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2022-12-14 15:12:26,005 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 62 [2022-12-14 15:12:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:12:26,006 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2022-12-14 15:12:26,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 15:12:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2022-12-14 15:12:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 15:12:26,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:12:26,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:12:26,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:12:26,009 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:12:26,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:12:26,009 INFO L85 PathProgramCache]: Analyzing trace with hash 208176643, now seen corresponding path program 1 times [2022-12-14 15:12:26,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:12:26,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157996201] [2022-12-14 15:12:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:26,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:12:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:26,182 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:12:26,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:12:26,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157996201] [2022-12-14 15:12:26,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157996201] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:12:26,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484536651] [2022-12-14 15:12:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:12:26,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:12:26,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:12:26,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:12:26,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:12:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:12:26,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:12:26,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:12:26,426 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:12:26,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:12:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:12:26,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484536651] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:12:26,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1730611897] [2022-12-14 15:12:26,491 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 15:12:26,491 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:12:26,494 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:12:26,499 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:12:26,500 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:12:56,323 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:12:56,608 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:12:56,898 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-12-14 15:12:58,447 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 15:12:58,489 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-12-14 15:13:02,554 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 233 for LOIs [2022-12-14 15:13:02,621 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 478 for LOIs [2022-12-14 15:13:07,769 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:13:50,671 WARN L233 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 587 DAG size of output: 449 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:14:12,759 WARN L233 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:14:35,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1730611897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:14:35,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:14:35,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [4, 4, 4] total 45 [2022-12-14 15:14:35,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57224529] [2022-12-14 15:14:35,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:14:35,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-14 15:14:35,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:14:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-14 15:14:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1863, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 15:14:35,097 INFO L87 Difference]: Start difference. First operand 212 states and 305 transitions. Second operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 15:15:13,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:13,487 INFO L93 Difference]: Finished difference Result 585 states and 917 transitions. [2022-12-14 15:15:13,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-14 15:15:13,488 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 63 [2022-12-14 15:15:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:13,490 INFO L225 Difference]: With dead ends: 585 [2022-12-14 15:15:13,490 INFO L226 Difference]: Without dead ends: 391 [2022-12-14 15:15:13,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 109.0s TimeCoverageRelationStatistics Valid=179, Invalid=2683, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 15:15:13,492 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 203 mSDsluCounter, 4778 mSDsCounter, 0 mSdLazyCounter, 5630 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 5032 SdHoareTripleChecker+Invalid, 5656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:13,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 5032 Invalid, 5656 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 5630 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2022-12-14 15:15:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-12-14 15:15:13,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 258. [2022-12-14 15:15:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 168 states have (on average 1.380952380952381) internal successors, (232), 171 states have internal predecessors, (232), 67 states have call successors, (67), 24 states have call predecessors, (67), 22 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 15:15:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 365 transitions. [2022-12-14 15:15:13,596 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 365 transitions. Word has length 63 [2022-12-14 15:15:13,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:13,597 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 365 transitions. [2022-12-14 15:15:13,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 15:15:13,597 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 365 transitions. [2022-12-14 15:15:13,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 15:15:13,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:13,598 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:13,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:15:13,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:13,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:15:13,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:13,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1633261582, now seen corresponding path program 1 times [2022-12-14 15:15:13,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:13,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162782838] [2022-12-14 15:15:13,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:13,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:15:13,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:13,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162782838] [2022-12-14 15:15:13,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162782838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:13,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:15:13,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:15:13,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261143749] [2022-12-14 15:15:13,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:13,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:15:13,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:13,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:15:13,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:15:13,902 INFO L87 Difference]: Start difference. First operand 258 states and 365 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 15:15:14,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:14,206 INFO L93 Difference]: Finished difference Result 584 states and 865 transitions. [2022-12-14 15:15:14,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:15:14,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2022-12-14 15:15:14,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:14,209 INFO L225 Difference]: With dead ends: 584 [2022-12-14 15:15:14,209 INFO L226 Difference]: Without dead ends: 373 [2022-12-14 15:15:14,210 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 15:15:14,211 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 55 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:14,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 419 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:15:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-12-14 15:15:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 368. [2022-12-14 15:15:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 253 states have (on average 1.4466403162055337) internal successors, (366), 256 states have internal predecessors, (366), 92 states have call successors, (92), 24 states have call predecessors, (92), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2022-12-14 15:15:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 549 transitions. [2022-12-14 15:15:14,372 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 549 transitions. Word has length 68 [2022-12-14 15:15:14,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:14,372 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 549 transitions. [2022-12-14 15:15:14,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 15:15:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 549 transitions. [2022-12-14 15:15:14,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 15:15:14,374 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:14,374 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:14,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:15:14,374 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:15:14,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:14,374 INFO L85 PathProgramCache]: Analyzing trace with hash 828857105, now seen corresponding path program 1 times [2022-12-14 15:15:14,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:14,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622676589] [2022-12-14 15:15:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:15:14,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:14,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622676589] [2022-12-14 15:15:14,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622676589] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:15:14,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976238689] [2022-12-14 15:15:14,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:14,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:14,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:14,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:15:14,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:15:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:14,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:15:14,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:15:14,680 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:15:14,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:15:14,720 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:15:14,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976238689] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:15:14,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1324885218] [2022-12-14 15:15:14,724 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 15:15:14,724 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:15:14,725 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:15:14,725 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:15:14,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:16:00,323 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:16:00,615 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 15:16:00,896 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:16:43,162 WARN L233 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 583 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:16:54,827 WARN L233 SmtUtils]: Spent 11.39s 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 15:17:16,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1324885218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:17:16,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:17:16,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 15:17:16,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674985330] [2022-12-14 15:17:16,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:17:16,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 15:17:16,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:16,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 15:17:16,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2022-12-14 15:17:16,059 INFO L87 Difference]: Start difference. First operand 368 states and 549 transitions. Second operand has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-12-14 15:17:24,219 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 512 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:17:34,576 WARN L233 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 569 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:18:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:18:08,398 INFO L93 Difference]: Finished difference Result 770 states and 1196 transitions. [2022-12-14 15:18:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 15:18:08,399 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2022-12-14 15:18:08,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:18:08,401 INFO L225 Difference]: With dead ends: 770 [2022-12-14 15:18:08,401 INFO L226 Difference]: Without dead ends: 486 [2022-12-14 15:18:08,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 120.2s TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 15:18:08,402 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 298 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:18:08,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 2967 Invalid, 2152 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 15:18:08,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-12-14 15:18:08,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 411. [2022-12-14 15:18:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 293 states have (on average 1.47098976109215) internal successors, (431), 297 states have internal predecessors, (431), 94 states have call successors, (94), 25 states have call predecessors, (94), 23 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2022-12-14 15:18:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 618 transitions. [2022-12-14 15:18:08,622 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 618 transitions. Word has length 69 [2022-12-14 15:18:08,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:18:08,622 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 618 transitions. [2022-12-14 15:18:08,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-12-14 15:18:08,622 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 618 transitions. [2022-12-14 15:18:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 15:18:08,623 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:18:08,623 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:18:08,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:18:08,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:18:08,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:18:08,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:18:08,824 INFO L85 PathProgramCache]: Analyzing trace with hash -523298927, now seen corresponding path program 1 times [2022-12-14 15:18:08,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:18:08,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302872575] [2022-12-14 15:18:08,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:18:08,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:18:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:18:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:18:08,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:18:08,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302872575] [2022-12-14 15:18:08,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302872575] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:18:08,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981490429] [2022-12-14 15:18:08,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:18:08,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:18:08,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:18:08,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:18:08,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:18:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:18:09,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:18:09,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:18:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:18:09,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:18:09,172 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:18:09,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981490429] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:18:09,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [496846833] [2022-12-14 15:18:09,175 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 15:18:09,175 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:18:09,175 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:18:09,175 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:18:09,175 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:19:00,086 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 15:19:00,366 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 15:19:00,428 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 454 for LOIs [2022-12-14 15:19:00,752 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:19:01,039 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 15:19:01,105 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:19:40,460 WARN L233 SmtUtils]: Spent 7.93s on a formula simplification. DAG size of input: 623 DAG size of output: 451 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:19:47,266 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 636 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:20:03,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [496846833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:20:03,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:20:03,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 15:20:03,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870676244] [2022-12-14 15:20:03,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:20:03,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 15:20:03,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:20:03,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 15:20:03,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 15:20:03,239 INFO L87 Difference]: Start difference. First operand 411 states and 618 transitions. Second operand has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 15:20:20,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:20:20,426 INFO L93 Difference]: Finished difference Result 838 states and 1310 transitions. [2022-12-14 15:20:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 15:20:20,427 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2022-12-14 15:20:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:20:20,429 INFO L225 Difference]: With dead ends: 838 [2022-12-14 15:20:20,429 INFO L226 Difference]: Without dead ends: 554 [2022-12-14 15:20:20,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 67.1s TimeCoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 15:20:20,430 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 106 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 3524 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:20:20,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 3524 Invalid, 3413 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2022-12-14 15:20:20,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-12-14 15:20:20,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 507. [2022-12-14 15:20:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 382 states have (on average 1.5026178010471205) internal successors, (574), 387 states have internal predecessors, (574), 98 states have call successors, (98), 28 states have call predecessors, (98), 26 states have return successors, (97), 93 states have call predecessors, (97), 97 states have call successors, (97) [2022-12-14 15:20:20,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 769 transitions. [2022-12-14 15:20:20,756 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 769 transitions. Word has length 72 [2022-12-14 15:20:20,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:20:20,757 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 769 transitions. [2022-12-14 15:20:20,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 15:20:20,757 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 769 transitions. [2022-12-14 15:20:20,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 15:20:20,758 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:20:20,758 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:20:20,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:20:20,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 15:20:20,959 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:20:20,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:20:20,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1186678262, now seen corresponding path program 1 times [2022-12-14 15:20:20,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:20:20,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792119746] [2022-12-14 15:20:20,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:20:20,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:20:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:20:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:20:21,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:20:21,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792119746] [2022-12-14 15:20:21,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792119746] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:20:21,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748071652] [2022-12-14 15:20:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:20:21,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:20:21,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:20:21,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:20:21,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:20:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:20:21,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:20:21,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:20:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:20:21,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:20:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:20:21,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748071652] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:20:21,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1897256677] [2022-12-14 15:20:21,306 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 15:20:21,306 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:20:21,306 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:20:21,307 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:20:21,307 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:21:09,363 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 15:21:09,647 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:21:09,926 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-12-14 15:21:11,429 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 15:21:11,468 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-12-14 15:21:24,682 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 233 for LOIs [2022-12-14 15:21:24,716 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 438 for LOIs [2022-12-14 15:21:25,288 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:22:12,699 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 573 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:23:06,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1897256677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:23:06,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:23:06,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 15:23:06,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577021665] [2022-12-14 15:23:06,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:23:06,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 15:23:06,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:23:06,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 15:23:06,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=2584, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 15:23:06,488 INFO L87 Difference]: Start difference. First operand 507 states and 769 transitions. Second operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 15:24:02,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:02,885 INFO L93 Difference]: Finished difference Result 896 states and 1395 transitions. [2022-12-14 15:24:02,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-14 15:24:02,887 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 71 [2022-12-14 15:24:02,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:02,889 INFO L225 Difference]: With dead ends: 896 [2022-12-14 15:24:02,890 INFO L226 Difference]: Without dead ends: 612 [2022-12-14 15:24:02,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1093 ImplicationChecksByTransitivity, 140.1s TimeCoverageRelationStatistics Valid=466, Invalid=4790, Unknown=0, NotChecked=0, Total=5256 [2022-12-14 15:24:02,892 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 381 mSDsluCounter, 4612 mSDsCounter, 0 mSdLazyCounter, 5676 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 4838 SdHoareTripleChecker+Invalid, 5706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:02,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 4838 Invalid, 5706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 5676 Invalid, 0 Unknown, 0 Unchecked, 16.7s Time] [2022-12-14 15:24:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-12-14 15:24:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 536. [2022-12-14 15:24:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 411 states have (on average 1.510948905109489) internal successors, (621), 416 states have internal predecessors, (621), 98 states have call successors, (98), 28 states have call predecessors, (98), 26 states have return successors, (97), 93 states have call predecessors, (97), 97 states have call successors, (97) [2022-12-14 15:24:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 816 transitions. [2022-12-14 15:24:03,276 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 816 transitions. Word has length 71 [2022-12-14 15:24:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:03,277 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 816 transitions. [2022-12-14 15:24:03,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 15:24:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 816 transitions. [2022-12-14 15:24:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 15:24:03,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:03,278 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:03,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 15:24:03,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 15:24:03,479 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2012418195, now seen corresponding path program 1 times [2022-12-14 15:24:03,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:03,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502939749] [2022-12-14 15:24:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:24:03,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:03,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502939749] [2022-12-14 15:24:03,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502939749] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:24:03,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417239999] [2022-12-14 15:24:03,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:03,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:03,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:24:03,565 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:24:03,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca41f63-9ca3-4106-95e0-3559cd238429/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:24:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:03,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:24:03,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:24:03,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:24:03,798 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:24:03,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417239999] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:24:03,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1588509506] [2022-12-14 15:24:03,800 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 15:24:03,800 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:24:03,801 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:24:03,801 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:24:03,801 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:25:08,718 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:25:09,006 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 453 for LOIs [2022-12-14 15:25:09,291 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-12-14 15:25:10,751 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 15:25:10,787 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 256 for LOIs [2022-12-14 15:25:25,412 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 228 for LOIs [2022-12-14 15:25:25,444 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 433 for LOIs [2022-12-14 15:25:26,230 INFO L180 IcfgInterpreter]: Interpretation finished