./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/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_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/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_4260918f-5f19-4228-b792-6ed4a3eaaa08/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 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 --- 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 05:41:40,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:41:40,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:41:40,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:41:40,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:41:40,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:41:40,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:41:40,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:41:40,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:41:40,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:41:40,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:41:40,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:41:40,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:41:40,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:41:40,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:41:40,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:41:40,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:41:40,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:41:40,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:41:40,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:41:40,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:41:40,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:41:40,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:41:40,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:41:40,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:41:40,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:41:40,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:41:40,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:41:40,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:41:40,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:41:40,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:41:40,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:41:40,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:41:40,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:41:40,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:41:40,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:41:40,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:41:40,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:41:40,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:41:40,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:41:40,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:41:40,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:41:40,167 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:41:40,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:41:40,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:41:40,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:41:40,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:41:40,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:41:40,168 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:41:40,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:41:40,169 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:41:40,169 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:41:40,169 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:41:40,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:41:40,170 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:41:40,170 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:41:40,170 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:41:40,170 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:41:40,170 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:41:40,171 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:41:40,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:41:40,172 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:41:40,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:41:40,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:41:40,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:41:40,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:41:40,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:41:40,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:41:40,173 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:41:40,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:41:40,173 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:41:40,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:41:40,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:41:40,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:41:40,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:41:40,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:41:40,174 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:41:40,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:41:40,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:41:40,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:41:40,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:41:40,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:41:40,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:41:40,176 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_4260918f-5f19-4228-b792-6ed4a3eaaa08/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 [2022-12-14 05:41:40,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:41:40,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:41:40,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:41:40,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:41:40,395 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:41:40,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2022-12-14 05:41:43,003 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:41:43,205 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:41:43,206 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2022-12-14 05:41:43,218 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/data/d742c6f4a/23e17558f52140bb93474c09d8f7f582/FLAG505e27ff4 [2022-12-14 05:41:43,231 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/data/d742c6f4a/23e17558f52140bb93474c09d8f7f582 [2022-12-14 05:41:43,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:41:43,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:41:43,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:41:43,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:41:43,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:41:43,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f5b9172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43, skipping insertion in model container [2022-12-14 05:41:43,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:41:43,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:41:43,472 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,475 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,528 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_4260918f-5f19-4228-b792-6ed4a3eaaa08/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2022-12-14 05:41:43,555 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,561 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,561 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,563 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,596 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,596 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,599 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:41:43,660 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:41:43,685 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,686 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,703 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_4260918f-5f19-4228-b792-6ed4a3eaaa08/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2022-12-14 05:41:43,704 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,706 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,706 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,707 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,713 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,714 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,715 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:41:43,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:41:43,755 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:41:43,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43 WrapperNode [2022-12-14 05:41:43,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:41:43,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:41:43,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:41:43,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:41:43,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,809 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 939 [2022-12-14 05:41:43,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:41:43,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:41:43,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:41:43,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:41:43,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:41:43,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:41:43,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:41:43,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:41:43,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (1/1) ... [2022-12-14 05:41:43,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:41:43,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:41:43,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:41:43,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:41:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 05:41:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 05:41:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 05:41:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 05:41:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 05:41:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 05:41:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 05:41:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 05:41:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 05:41:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 05:41:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 05:41:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 05:41:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 05:41:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 05:41:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 05:41:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 05:41:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 05:41:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 05:41:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 05:41:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 05:41:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 05:41:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 05:41:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 05:41:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 05:41:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 05:41:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 05:41:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 05:41:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 05:41:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 05:41:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:41:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 05:41:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 05:41:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 05:41:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 05:41:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 05:41:43,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 05:41:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 05:41:43,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 05:41:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 05:41:43,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 05:41:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 05:41:43,914 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 05:41:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 05:41:43,914 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 05:41:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 05:41:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 05:41:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 05:41:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 05:41:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 05:41:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 05:41:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 05:41:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 05:41:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 05:41:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 05:41:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:41:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 05:41:43,916 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 05:41:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 05:41:43,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 05:41:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:41:43,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:41:44,074 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:41:44,076 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:41:44,612 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:41:44,958 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:41:44,958 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 05:41:44,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:41:44 BoogieIcfgContainer [2022-12-14 05:41:44,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:41:44,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:41:44,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:41:44,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:41:44,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:41:43" (1/3) ... [2022-12-14 05:41:44,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6775dbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:41:44, skipping insertion in model container [2022-12-14 05:41:44,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:43" (2/3) ... [2022-12-14 05:41:44,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6775dbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:41:44, skipping insertion in model container [2022-12-14 05:41:44,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:41:44" (3/3) ... [2022-12-14 05:41:44,970 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2022-12-14 05:41:44,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:41:44,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:41:45,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:41:45,038 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;@12654b38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:41:45,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:41:45,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 05:41:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 05:41:45,055 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:41:45,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:41:45,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:41:45,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:41:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash -347504444, now seen corresponding path program 1 times [2022-12-14 05:41:45,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:41:45,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452440008] [2022-12-14 05:41:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:41:45,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:41:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:41:45,277 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 05:41:45,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:41:45,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452440008] [2022-12-14 05:41:45,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452440008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:41:45,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:41:45,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:41:45,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449063823] [2022-12-14 05:41:45,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:41:45,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:41:45,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:41:45,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:41:45,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:41:45,308 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:41:45,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:41:45,433 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2022-12-14 05:41:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:41:45,436 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 05:41:45,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:41:45,447 INFO L225 Difference]: With dead ends: 334 [2022-12-14 05:41:45,447 INFO L226 Difference]: Without dead ends: 210 [2022-12-14 05:41:45,452 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 05:41:45,455 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:41:45,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:41:45,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-14 05:41:45,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-12-14 05:41:45,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 05:41:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2022-12-14 05:41:45,515 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 71 [2022-12-14 05:41:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:41:45,517 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2022-12-14 05:41:45,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:41:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2022-12-14 05:41:45,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 05:41:45,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:41:45,520 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:41:45,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:41:45,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:41:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:41:45,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1278810131, now seen corresponding path program 1 times [2022-12-14 05:41:45,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:41:45,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461135223] [2022-12-14 05:41:45,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:41:45,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:41:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:41:45,640 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 05:41:45,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:41:45,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461135223] [2022-12-14 05:41:45,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461135223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:41:45,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:41:45,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:41:45,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191249265] [2022-12-14 05:41:45,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:41:45,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:41:45,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:41:45,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:41:45,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:41:45,644 INFO L87 Difference]: Start difference. First operand 210 states and 276 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:41:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:41:45,754 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2022-12-14 05:41:45,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:41:45,755 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 05:41:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:41:45,757 INFO L225 Difference]: With dead ends: 330 [2022-12-14 05:41:45,757 INFO L226 Difference]: Without dead ends: 212 [2022-12-14 05:41:45,757 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 05:41:45,758 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:41:45,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:41:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-12-14 05:41:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-12-14 05:41:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 05:41:45,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2022-12-14 05:41:45,772 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 72 [2022-12-14 05:41:45,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:41:45,772 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-12-14 05:41:45,772 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:41:45,772 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2022-12-14 05:41:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 05:41:45,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:41:45,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:41:45,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:41:45,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:41:45,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:41:45,778 INFO L85 PathProgramCache]: Analyzing trace with hash -773610934, now seen corresponding path program 1 times [2022-12-14 05:41:45,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:41:45,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595383532] [2022-12-14 05:41:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:41:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:41:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:41:45,844 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 05:41:45,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:41:45,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595383532] [2022-12-14 05:41:45,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595383532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:41:45,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:41:45,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:41:45,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032511118] [2022-12-14 05:41:45,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:41:45,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:41:45,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:41:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:41:45,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:41:45,846 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:41:45,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:41:45,957 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2022-12-14 05:41:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:41:45,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 05:41:45,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:41:45,959 INFO L225 Difference]: With dead ends: 459 [2022-12-14 05:41:45,959 INFO L226 Difference]: Without dead ends: 265 [2022-12-14 05:41:45,960 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 05:41:45,961 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 59 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:41:45,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 495 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:41:45,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-12-14 05:41:45,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2022-12-14 05:41:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 05:41:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2022-12-14 05:41:45,976 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 77 [2022-12-14 05:41:45,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:41:45,976 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2022-12-14 05:41:45,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:41:45,976 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2022-12-14 05:41:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 05:41:45,978 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:41:45,978 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:41:45,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:41:45,979 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:41:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:41:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1200263021, now seen corresponding path program 1 times [2022-12-14 05:41:45,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:41:45,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533544193] [2022-12-14 05:41:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:41:45,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:41:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:41:46,077 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 05:41:46,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:41:46,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533544193] [2022-12-14 05:41:46,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533544193] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:41:46,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576080952] [2022-12-14 05:41:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:41:46,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:41:46,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:41:46,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:41:46,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:41:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:41:46,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:41:46,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:41:46,368 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 05:41:46,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:41:46,425 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 05:41:46,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576080952] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:41:46,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1022928742] [2022-12-14 05:41:46,440 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 05:41:46,441 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:41:46,444 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:41:46,448 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:41:46,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:42:18,605 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:42:18,896 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 480 for LOIs [2022-12-14 05:42:53,228 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 454 for LOIs [2022-12-14 05:42:53,517 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 05:42:53,842 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 478 for LOIs [2022-12-14 05:43:00,086 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 442 for LOIs [2022-12-14 05:43:00,367 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 265 for LOIs [2022-12-14 05:43:06,236 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-12-14 05:43:06,301 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 243 for LOIs [2022-12-14 05:43:06,340 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 457 for LOIs [2022-12-14 05:43:07,009 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-12-14 05:43:07,054 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:45:06,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1022928742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:06,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:45:06,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 05:45:06,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957359415] [2022-12-14 05:45:06,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:06,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 05:45:06,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:06,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 05:45:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=3264, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 05:45:06,843 INFO L87 Difference]: Start difference. First operand 260 states and 361 transitions. Second operand has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 05:45:53,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:53,590 INFO L93 Difference]: Finished difference Result 644 states and 946 transitions. [2022-12-14 05:45:53,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 05:45:53,591 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 78 [2022-12-14 05:45:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:53,596 INFO L225 Difference]: With dead ends: 644 [2022-12-14 05:45:53,596 INFO L226 Difference]: Without dead ends: 402 [2022-12-14 05:45:53,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 137.9s TimeCoverageRelationStatistics Valid=236, Invalid=4594, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 05:45:53,600 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 149 mSDsluCounter, 7317 mSDsCounter, 0 mSdLazyCounter, 8913 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 7592 SdHoareTripleChecker+Invalid, 8931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 8913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:53,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 7592 Invalid, 8931 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18 Valid, 8913 Invalid, 0 Unknown, 0 Unchecked, 28.1s Time] [2022-12-14 05:45:53,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-12-14 05:45:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 345. [2022-12-14 05:45:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 222 states have (on average 1.3963963963963963) internal successors, (310), 226 states have internal predecessors, (310), 87 states have call successors, (87), 38 states have call predecessors, (87), 35 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2022-12-14 05:45:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 483 transitions. [2022-12-14 05:45:53,723 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 483 transitions. Word has length 78 [2022-12-14 05:45:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:53,723 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 483 transitions. [2022-12-14 05:45:53,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 05:45:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 483 transitions. [2022-12-14 05:45:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 05:45:53,725 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:53,726 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:45:53,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:45:53,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:53,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:53,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:53,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1561682334, now seen corresponding path program 1 times [2022-12-14 05:45:53,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:53,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25405190] [2022-12-14 05:45:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:53,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:54,021 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 05:45:54,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:54,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25405190] [2022-12-14 05:45:54,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25405190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:54,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:54,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:45:54,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495732748] [2022-12-14 05:45:54,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:54,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:45:54,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:45:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:45:54,023 INFO L87 Difference]: Start difference. First operand 345 states and 483 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 05:45:54,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:54,327 INFO L93 Difference]: Finished difference Result 814 states and 1188 transitions. [2022-12-14 05:45:54,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:45:54,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-12-14 05:45:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:54,331 INFO L225 Difference]: With dead ends: 814 [2022-12-14 05:45:54,331 INFO L226 Difference]: Without dead ends: 495 [2022-12-14 05:45:54,332 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 05:45:54,332 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 57 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:54,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 508 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:45:54,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-12-14 05:45:54,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 488. [2022-12-14 05:45:54,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 334 states have (on average 1.470059880239521) internal successors, (491), 338 states have internal predecessors, (491), 118 states have call successors, (118), 38 states have call predecessors, (118), 35 states have return successors, (117), 113 states have call predecessors, (117), 117 states have call successors, (117) [2022-12-14 05:45:54,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 726 transitions. [2022-12-14 05:45:54,492 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 726 transitions. Word has length 83 [2022-12-14 05:45:54,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:54,493 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 726 transitions. [2022-12-14 05:45:54,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 05:45:54,493 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 726 transitions. [2022-12-14 05:45:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 05:45:54,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:54,495 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:45:54,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:45:54,495 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:54,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:54,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2037819644, now seen corresponding path program 1 times [2022-12-14 05:45:54,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:54,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805296147] [2022-12-14 05:45:54,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:54,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:54,594 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 05:45:54,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805296147] [2022-12-14 05:45:54,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805296147] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:45:54,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150250698] [2022-12-14 05:45:54,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:54,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:54,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:54,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:45:54,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:45:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:54,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:45:54,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:45:54,831 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 05:45:54,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:45:54,876 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 05:45:54,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150250698] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:45:54,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [110552190] [2022-12-14 05:45:54,881 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 05:45:54,881 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:45:54,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:45:54,881 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:45:54,882 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:46:28,034 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:46:28,324 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 05:46:28,612 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:47:14,129 WARN L233 SmtUtils]: Spent 8.25s on a formula simplification. DAG size of input: 597 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:47:24,664 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 574 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:47:36,165 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 572 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:47:42,010 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 570 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:47:44,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [110552190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:47:44,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:47:44,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 05:47:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995430314] [2022-12-14 05:47:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:47:44,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 05:47:44,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:47:44,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 05:47:44,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2022-12-14 05:47:44,297 INFO L87 Difference]: Start difference. First operand 488 states and 726 transitions. Second operand has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 05:48:16,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:48:16,838 INFO L93 Difference]: Finished difference Result 943 states and 1440 transitions. [2022-12-14 05:48:16,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 05:48:16,840 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2022-12-14 05:48:16,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:48:16,843 INFO L225 Difference]: With dead ends: 943 [2022-12-14 05:48:16,843 INFO L226 Difference]: Without dead ends: 601 [2022-12-14 05:48:16,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 99.6s TimeCoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 05:48:16,845 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 236 mSDsluCounter, 3783 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:48:16,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 4043 Invalid, 2536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 05:48:16,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-12-14 05:48:17,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 520. [2022-12-14 05:48:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 362 states have (on average 1.4696132596685083) internal successors, (532), 368 states have internal predecessors, (532), 121 states have call successors, (121), 39 states have call predecessors, (121), 36 states have return successors, (120), 114 states have call predecessors, (120), 120 states have call successors, (120) [2022-12-14 05:48:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 773 transitions. [2022-12-14 05:48:17,095 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 773 transitions. Word has length 84 [2022-12-14 05:48:17,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:17,096 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 773 transitions. [2022-12-14 05:48:17,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 05:48:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 773 transitions. [2022-12-14 05:48:17,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 05:48:17,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:17,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:48:17,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:48:17,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:48:17,299 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:17,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:17,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1245170899, now seen corresponding path program 1 times [2022-12-14 05:48:17,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:17,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303747345] [2022-12-14 05:48:17,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:17,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:17,443 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 05:48:17,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:17,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303747345] [2022-12-14 05:48:17,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303747345] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:48:17,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201322551] [2022-12-14 05:48:17,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:17,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:48:17,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:48:17,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:48:17,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:48:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:17,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:48:17,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:48:17,691 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 05:48:17,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:48:17,737 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 05:48:17,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201322551] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:48:17,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [315164392] [2022-12-14 05:48:17,740 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 05:48:17,740 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:48:17,740 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:48:17,740 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:48:17,741 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:49:46,639 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:49:46,925 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 232 for LOIs [2022-12-14 05:49:46,989 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 233 for LOIs [2022-12-14 05:49:47,050 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 280 for LOIs [2022-12-14 05:49:47,174 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 05:49:47,477 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:50:45,702 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 530 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:50:45,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [315164392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:50:45,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:50:45,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2022-12-14 05:50:45,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644959159] [2022-12-14 05:50:45,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:50:45,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-14 05:50:45,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:50:45,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-14 05:50:45,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 05:50:45,708 INFO L87 Difference]: Start difference. First operand 520 states and 773 transitions. Second operand has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-12-14 05:51:10,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:51:10,262 INFO L93 Difference]: Finished difference Result 980 states and 1493 transitions. [2022-12-14 05:51:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 05:51:10,263 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) Word has length 87 [2022-12-14 05:51:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:51:10,269 INFO L225 Difference]: With dead ends: 980 [2022-12-14 05:51:10,269 INFO L226 Difference]: Without dead ends: 638 [2022-12-14 05:51:10,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 69.7s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 05:51:10,272 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 205 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 3912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:51:10,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 4216 Invalid, 3912 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 3899 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2022-12-14 05:51:10,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-12-14 05:51:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 560. [2022-12-14 05:51:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 394 states have (on average 1.4644670050761421) internal successors, (577), 402 states have internal predecessors, (577), 126 states have call successors, (126), 42 states have call predecessors, (126), 39 states have return successors, (125), 117 states have call predecessors, (125), 125 states have call successors, (125) [2022-12-14 05:51:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 828 transitions. [2022-12-14 05:51:10,586 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 828 transitions. Word has length 87 [2022-12-14 05:51:10,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:51:10,587 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 828 transitions. [2022-12-14 05:51:10,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-12-14 05:51:10,587 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 828 transitions. [2022-12-14 05:51:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 05:51:10,589 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:51:10,589 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:51:10,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:51:10,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:51:10,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:51:10,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:51:10,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1658451426, now seen corresponding path program 1 times [2022-12-14 05:51:10,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:51:10,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120401464] [2022-12-14 05:51:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:51:10,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:51:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:51:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:51:10,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:51:10,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120401464] [2022-12-14 05:51:10,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120401464] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:51:10,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:51:10,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:51:10,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276122410] [2022-12-14 05:51:10,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:51:10,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:51:10,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:51:10,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:51:10,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:51:10,934 INFO L87 Difference]: Start difference. First operand 560 states and 828 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 05:51:11,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:51:11,367 INFO L93 Difference]: Finished difference Result 721 states and 1021 transitions. [2022-12-14 05:51:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:51:11,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2022-12-14 05:51:11,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:51:11,369 INFO L225 Difference]: With dead ends: 721 [2022-12-14 05:51:11,369 INFO L226 Difference]: Without dead ends: 610 [2022-12-14 05:51:11,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 05:51:11,370 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 146 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:51:11,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 360 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:51:11,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-12-14 05:51:11,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 607. [2022-12-14 05:51:11,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 417 states have (on average 1.4436450839328536) internal successors, (602), 428 states have internal predecessors, (602), 140 states have call successors, (140), 54 states have call predecessors, (140), 49 states have return successors, (138), 127 states have call predecessors, (138), 138 states have call successors, (138) [2022-12-14 05:51:11,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 880 transitions. [2022-12-14 05:51:11,681 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 880 transitions. Word has length 89 [2022-12-14 05:51:11,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:51:11,681 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 880 transitions. [2022-12-14 05:51:11,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 05:51:11,681 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 880 transitions. [2022-12-14 05:51:11,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-14 05:51:11,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:51:11,683 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:11,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:51:11,683 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:51:11,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:51:11,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1701104068, now seen corresponding path program 1 times [2022-12-14 05:51:11,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:51:11,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551712594] [2022-12-14 05:51:11,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:51:11,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:51:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:51:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-12-14 05:51:12,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:51:12,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551712594] [2022-12-14 05:51:12,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551712594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:51:12,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:51:12,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 05:51:12,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807802237] [2022-12-14 05:51:12,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:51:12,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 05:51:12,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:51:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 05:51:12,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:51:12,073 INFO L87 Difference]: Start difference. First operand 607 states and 880 transitions. Second operand has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-14 05:51:13,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:51:13,089 INFO L93 Difference]: Finished difference Result 1124 states and 1585 transitions. [2022-12-14 05:51:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 05:51:13,089 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 150 [2022-12-14 05:51:13,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:51:13,092 INFO L225 Difference]: With dead ends: 1124 [2022-12-14 05:51:13,092 INFO L226 Difference]: Without dead ends: 973 [2022-12-14 05:51:13,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-12-14 05:51:13,093 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 258 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:51:13,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 2075 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 05:51:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2022-12-14 05:51:13,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 964. [2022-12-14 05:51:13,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 640 states have (on average 1.4375) internal successors, (920), 656 states have internal predecessors, (920), 240 states have call successors, (240), 90 states have call predecessors, (240), 83 states have return successors, (235), 223 states have call predecessors, (235), 235 states have call successors, (235) [2022-12-14 05:51:13,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1395 transitions. [2022-12-14 05:51:13,476 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1395 transitions. Word has length 150 [2022-12-14 05:51:13,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:51:13,476 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 1395 transitions. [2022-12-14 05:51:13,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-14 05:51:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1395 transitions. [2022-12-14 05:51:13,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 05:51:13,478 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:51:13,478 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:51:13,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:51:13,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:51:13,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:51:13,479 INFO L85 PathProgramCache]: Analyzing trace with hash 360398359, now seen corresponding path program 1 times [2022-12-14 05:51:13,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:51:13,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338270256] [2022-12-14 05:51:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:51:13,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:51:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:51:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:51:13,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:51:13,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338270256] [2022-12-14 05:51:13,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338270256] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:51:13,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435108497] [2022-12-14 05:51:13,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:51:13,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:51:13,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:51:13,618 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:51:13,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4260918f-5f19-4228-b792-6ed4a3eaaa08/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:51:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:51:13,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1469 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:51:13,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:51:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-12-14 05:51:13,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:51:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:51:13,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435108497] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:51:13,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1915524937] [2022-12-14 05:51:14,001 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2022-12-14 05:51:14,001 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:51:14,002 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:51:14,002 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:51:14,002 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:52:06,928 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:52:07,215 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 480 for LOIs [2022-12-14 05:53:01,650 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 454 for LOIs [2022-12-14 05:53:01,943 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 05:53:02,249 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 478 for LOIs [2022-12-14 05:53:08,685 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 265 for LOIs [2022-12-14 05:53:31,598 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 250 for LOIs [2022-12-14 05:53:32,392 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 443 for LOIs [2022-12-14 05:53:32,651 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-12-14 05:53:32,718 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 441 for LOIs [2022-12-14 05:53:33,296 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 457 for LOIs [2022-12-14 05:53:33,934 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 436 for LOIs [2022-12-14 05:53:34,177 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-12-14 05:53:34,222 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:55:25,844 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 441 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:55:33,374 WARN L233 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 460 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)