./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product32.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_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/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_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/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_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/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 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d --- 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 05:03:52,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:03:52,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:03:52,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:03:52,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:03:52,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:03:52,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:03:52,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:03:52,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:03:52,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:03:52,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:03:52,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:03:52,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:03:52,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:03:52,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:03:52,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:03:52,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:03:52,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:03:52,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:03:52,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:03:52,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:03:52,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:03:52,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:03:52,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:03:52,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:03:52,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:03:52,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:03:52,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:03:52,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:03:52,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:03:52,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:03:52,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:03:52,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:03:52,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:03:52,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:03:52,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:03:52,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:03:52,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:03:52,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:03:52,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:03:52,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:03:52,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:03:52,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:03:52,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:03:52,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:03:52,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:03:52,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:03:52,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:03:52,239 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:03:52,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:03:52,240 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:03:52,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:03:52,240 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:03:52,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:03:52,240 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:03:52,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:03:52,241 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:03:52,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:03:52,241 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:03:52,241 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:03:52,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:03:52,242 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:03:52,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:03:52,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:03:52,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:03:52,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:03:52,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:03:52,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:03:52,243 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:03:52,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:03:52,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:03:52,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:03:52,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:03:52,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:03:52,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:03:52,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:03:52,245 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:03:52,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:03:52,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:03:52,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:03:52,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:03:52,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:03:52,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:03:52,246 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_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d [2022-12-14 05:03:52,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:03:52,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:03:52,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:03:52,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:03:52,462 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:03:52,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2022-12-14 05:03:55,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:03:55,252 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:03:55,252 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2022-12-14 05:03:55,265 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/data/de6f62208/e6bb682f258d4f7cabf3c15da4777f87/FLAG810046020 [2022-12-14 05:03:55,619 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/data/de6f62208/e6bb682f258d4f7cabf3c15da4777f87 [2022-12-14 05:03:55,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:03:55,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:03:55,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:03:55,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:03:55,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:03:55,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:03:55" (1/1) ... [2022-12-14 05:03:55,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86cdab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:55, skipping insertion in model container [2022-12-14 05:03:55,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:03:55" (1/1) ... [2022-12-14 05:03:55,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:03:55,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:03:55,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c[40215,40228] [2022-12-14 05:03:55,998 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,001 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,002 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,003 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,010 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,015 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,016 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,024 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,025 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,027 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:03:56,047 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:03:56,087 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_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c[40215,40228] [2022-12-14 05:03:56,099 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,101 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,102 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,103 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,106 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,109 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,109 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,111 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,112 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,114 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:03:56,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:03:56,140 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:03:56,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56 WrapperNode [2022-12-14 05:03:56,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:03:56,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:03:56,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:03:56,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:03:56,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,222 INFO L138 Inliner]: procedures = 135, calls = 244, calls flagged for inlining = 62, calls inlined = 54, statements flattened = 1014 [2022-12-14 05:03:56,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:03:56,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:03:56,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:03:56,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:03:56,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,259 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:03:56,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:03:56,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:03:56,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:03:56,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (1/1) ... [2022-12-14 05:03:56,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:03:56,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:03:56,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:03:56,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:03:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 05:03:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 05:03:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 05:03:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 05:03:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 05:03:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 05:03:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 05:03:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 05:03:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 05:03:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 05:03:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 05:03:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 05:03:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 05:03:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 05:03:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 05:03:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 05:03:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 05:03:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 05:03:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 05:03:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 05:03:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 05:03:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 05:03:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 05:03:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 05:03:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 05:03:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 05:03:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 05:03:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 05:03:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 05:03:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 05:03:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 05:03:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:03:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 05:03:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 05:03:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 05:03:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 05:03:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 05:03:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 05:03:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 05:03:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 05:03:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 05:03:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 05:03:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 05:03:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 05:03:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 05:03:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 05:03:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 05:03:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 05:03:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 05:03:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 05:03:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 05:03:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 05:03:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 05:03:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 05:03:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:03:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 05:03:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 05:03:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 05:03:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 05:03:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:03:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:03:56,512 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:03:56,513 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:03:57,154 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:03:57,527 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:03:57,527 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 05:03:57,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:03:57 BoogieIcfgContainer [2022-12-14 05:03:57,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:03:57,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:03:57,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:03:57,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:03:57,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:03:55" (1/3) ... [2022-12-14 05:03:57,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce1acd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:03:57, skipping insertion in model container [2022-12-14 05:03:57,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:03:56" (2/3) ... [2022-12-14 05:03:57,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce1acd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:03:57, skipping insertion in model container [2022-12-14 05:03:57,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:03:57" (3/3) ... [2022-12-14 05:03:57,535 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2022-12-14 05:03:57,550 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:03:57,550 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:03:57,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:03:57,592 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;@45126ddd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:03:57,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:03:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 05:03:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 05:03:57,606 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:03:57,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:03:57,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:03:57,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:03:57,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1361685775, now seen corresponding path program 1 times [2022-12-14 05:03:57,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:03:57,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174756985] [2022-12-14 05:03:57,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:03:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:03:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:03:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 05:03:57,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:03:57,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174756985] [2022-12-14 05:03:57,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174756985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:03:57,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:03:57,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:03:57,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618682828] [2022-12-14 05:03:57,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:03:57,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:03:57,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:03:57,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:03:57,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:03:57,897 INFO L87 Difference]: Start difference. First operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 05:03:58,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:03:58,015 INFO L93 Difference]: Finished difference Result 354 states and 467 transitions. [2022-12-14 05:03:58,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:03:58,017 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 87 [2022-12-14 05:03:58,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:03:58,025 INFO L225 Difference]: With dead ends: 354 [2022-12-14 05:03:58,026 INFO L226 Difference]: Without dead ends: 220 [2022-12-14 05:03:58,029 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 05:03:58,031 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:03:58,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:03:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-12-14 05:03:58,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-12-14 05:03:58,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 05:03:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 291 transitions. [2022-12-14 05:03:58,073 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 291 transitions. Word has length 87 [2022-12-14 05:03:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:03:58,074 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 291 transitions. [2022-12-14 05:03:58,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 05:03:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 291 transitions. [2022-12-14 05:03:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 05:03:58,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:03:58,077 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:03:58,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:03:58,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:03:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:03:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash 68987323, now seen corresponding path program 1 times [2022-12-14 05:03:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:03:58,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696872851] [2022-12-14 05:03:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:03:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:03:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:03:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 05:03:58,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:03:58,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696872851] [2022-12-14 05:03:58,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696872851] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:03:58,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:03:58,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:03:58,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579988826] [2022-12-14 05:03:58,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:03:58,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:03:58,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:03:58,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:03:58,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:03:58,232 INFO L87 Difference]: Start difference. First operand 220 states and 291 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 05:03:58,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:03:58,345 INFO L93 Difference]: Finished difference Result 350 states and 452 transitions. [2022-12-14 05:03:58,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:03:58,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 88 [2022-12-14 05:03:58,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:03:58,348 INFO L225 Difference]: With dead ends: 350 [2022-12-14 05:03:58,348 INFO L226 Difference]: Without dead ends: 222 [2022-12-14 05:03:58,349 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 05:03:58,350 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 0 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:03:58,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:03:58,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-12-14 05:03:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-12-14 05:03:58,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 130 states have internal predecessors, (160), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 05:03:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 293 transitions. [2022-12-14 05:03:58,364 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 293 transitions. Word has length 88 [2022-12-14 05:03:58,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:03:58,365 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 293 transitions. [2022-12-14 05:03:58,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 05:03:58,365 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 293 transitions. [2022-12-14 05:03:58,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 05:03:58,367 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:03:58,367 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:03:58,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:03:58,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:03:58,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:03:58,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1428284171, now seen corresponding path program 1 times [2022-12-14 05:03:58,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:03:58,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464581527] [2022-12-14 05:03:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:03:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:03:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:03:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:03:58,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:03:58,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464581527] [2022-12-14 05:03:58,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464581527] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:03:58,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:03:58,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:03:58,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042217008] [2022-12-14 05:03:58,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:03:58,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:03:58,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:03:58,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:03:58,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:03:58,470 INFO L87 Difference]: Start difference. First operand 222 states and 293 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 05:03:58,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:03:58,585 INFO L93 Difference]: Finished difference Result 479 states and 653 transitions. [2022-12-14 05:03:58,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:03:58,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 104 [2022-12-14 05:03:58,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:03:58,588 INFO L225 Difference]: With dead ends: 479 [2022-12-14 05:03:58,588 INFO L226 Difference]: Without dead ends: 275 [2022-12-14 05:03:58,590 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 05:03:58,591 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 59 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:03:58,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 513 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:03:58,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-12-14 05:03:58,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 270. [2022-12-14 05:03:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 160 states have (on average 1.34375) internal successors, (215), 164 states have internal predecessors, (215), 81 states have call successors, (81), 28 states have call predecessors, (81), 28 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2022-12-14 05:03:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 376 transitions. [2022-12-14 05:03:58,616 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 376 transitions. Word has length 104 [2022-12-14 05:03:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:03:58,616 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 376 transitions. [2022-12-14 05:03:58,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 05:03:58,617 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 376 transitions. [2022-12-14 05:03:58,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 05:03:58,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:03:58,626 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:03:58,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:03:58,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:03:58,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:03:58,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1683450982, now seen corresponding path program 1 times [2022-12-14 05:03:58,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:03:58,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498932893] [2022-12-14 05:03:58,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:03:58,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:03:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:03:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 05:03:58,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:03:58,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498932893] [2022-12-14 05:03:58,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498932893] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:03:58,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880258740] [2022-12-14 05:03:58,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:03:58,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:03:58,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:03:58,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:03:58,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:03:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:03:59,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:03:59,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:03:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 05:03:59,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:03:59,197 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 05:03:59,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880258740] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:03:59,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [838300826] [2022-12-14 05:03:59,217 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-12-14 05:03:59,217 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:03:59,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:03:59,224 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:03:59,225 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:04:26,747 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:04:27,044 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-12-14 05:04:28,961 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 05:04:28,999 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 05:04:29,295 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-12-14 05:04:32,226 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 283 for LOIs [2022-12-14 05:04:43,410 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-12-14 05:04:43,446 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-12-14 05:04:43,516 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 437 for LOIs [2022-12-14 05:04:44,128 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 05:04:48,819 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 255 for LOIs [2022-12-14 05:04:48,861 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-12-14 05:04:48,910 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:05:29,005 WARN L233 SmtUtils]: Spent 8.38s on a formula simplification. DAG size of input: 587 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:06:53,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [838300826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:06:53,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:06:53,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [4, 4, 4] total 65 [2022-12-14 05:06:53,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198232318] [2022-12-14 05:06:53,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:06:53,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-12-14 05:06:53,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:06:53,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-12-14 05:06:53,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=3993, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 05:06:53,603 INFO L87 Difference]: Start difference. First operand 270 states and 376 transitions. Second operand has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 05:08:02,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:08:02,189 INFO L93 Difference]: Finished difference Result 761 states and 1150 transitions. [2022-12-14 05:08:02,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-12-14 05:08:02,190 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 94 [2022-12-14 05:08:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:08:02,194 INFO L225 Difference]: With dead ends: 761 [2022-12-14 05:08:02,194 INFO L226 Difference]: Without dead ends: 509 [2022-12-14 05:08:02,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 217 SyntacticMatches, 4 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 158.7s TimeCoverageRelationStatistics Valid=260, Invalid=5902, Unknown=0, NotChecked=0, Total=6162 [2022-12-14 05:08:02,198 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 301 mSDsluCounter, 7985 mSDsCounter, 0 mSdLazyCounter, 11376 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 8306 SdHoareTripleChecker+Invalid, 11410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 11376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:08:02,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 8306 Invalid, 11410 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [34 Valid, 11376 Invalid, 0 Unknown, 0 Unchecked, 33.8s Time] [2022-12-14 05:08:02,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-12-14 05:08:02,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 410. [2022-12-14 05:08:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 271 states have (on average 1.3948339483394834) internal successors, (378), 276 states have internal predecessors, (378), 101 states have call successors, (101), 39 states have call predecessors, (101), 37 states have return successors, (101), 96 states have call predecessors, (101), 100 states have call successors, (101) [2022-12-14 05:08:02,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 580 transitions. [2022-12-14 05:08:02,379 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 580 transitions. Word has length 94 [2022-12-14 05:08:02,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:08:02,380 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 580 transitions. [2022-12-14 05:08:02,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 05:08:02,381 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 580 transitions. [2022-12-14 05:08:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-14 05:08:02,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:08:02,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:08:02,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:08:02,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:08:02,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:08:02,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:08:02,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1034712254, now seen corresponding path program 1 times [2022-12-14 05:08:02,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:08:02,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737193882] [2022-12-14 05:08:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:08:02,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:08:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:08:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 05:08:02,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:08:02,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737193882] [2022-12-14 05:08:02,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737193882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:08:02,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:08:02,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:08:02,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790311164] [2022-12-14 05:08:02,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:08:02,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:08:02,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:08:02,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:08:02,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:08:02,730 INFO L87 Difference]: Start difference. First operand 410 states and 580 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 05:08:03,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:08:03,068 INFO L93 Difference]: Finished difference Result 897 states and 1301 transitions. [2022-12-14 05:08:03,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:08:03,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 110 [2022-12-14 05:08:03,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:08:03,071 INFO L225 Difference]: With dead ends: 897 [2022-12-14 05:08:03,071 INFO L226 Difference]: Without dead ends: 534 [2022-12-14 05:08:03,072 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 05:08:03,072 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 57 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:08:03,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 522 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:08:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-12-14 05:08:03,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 527. [2022-12-14 05:08:03,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 357 states have (on average 1.4285714285714286) internal successors, (510), 362 states have internal predecessors, (510), 132 states have call successors, (132), 39 states have call predecessors, (132), 37 states have return successors, (132), 127 states have call predecessors, (132), 131 states have call successors, (132) [2022-12-14 05:08:03,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 774 transitions. [2022-12-14 05:08:03,287 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 774 transitions. Word has length 110 [2022-12-14 05:08:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:08:03,287 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 774 transitions. [2022-12-14 05:08:03,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 05:08:03,287 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 774 transitions. [2022-12-14 05:08:03,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 05:08:03,289 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:08:03,289 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, 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 05:08:03,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:08:03,289 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:08:03,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:08:03,290 INFO L85 PathProgramCache]: Analyzing trace with hash 734816233, now seen corresponding path program 1 times [2022-12-14 05:08:03,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:08:03,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127102568] [2022-12-14 05:08:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:08:03,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:08:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:08:03,416 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 05:08:03,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:08:03,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127102568] [2022-12-14 05:08:03,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127102568] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:08:03,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367741227] [2022-12-14 05:08:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:08:03,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:08:03,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:08:03,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:08:03,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:08:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:08:03,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:08:03,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:08:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 05:08:03,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:08:03,714 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 05:08:03,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367741227] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:08:03,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [103542546] [2022-12-14 05:08:03,719 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-12-14 05:08:03,719 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:08:03,720 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:08:03,720 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:08:03,720 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:08:45,934 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:08:46,225 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 05:08:46,508 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:09:22,476 WARN L233 SmtUtils]: Spent 7.63s on a formula simplification. DAG size of input: 593 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:09:40,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [103542546] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:40,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:09:40,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 05:09:40,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94549547] [2022-12-14 05:09:40,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:40,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 05:09:40,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:09:40,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 05:09:40,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2022-12-14 05:09:40,221 INFO L87 Difference]: Start difference. First operand 527 states and 774 transitions. Second operand has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-12-14 05:09:58,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:09:58,937 INFO L93 Difference]: Finished difference Result 985 states and 1493 transitions. [2022-12-14 05:09:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 05:09:58,938 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 111 [2022-12-14 05:09:58,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:09:58,942 INFO L225 Difference]: With dead ends: 985 [2022-12-14 05:09:58,942 INFO L226 Difference]: Without dead ends: 633 [2022-12-14 05:09:58,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 66.5s TimeCoverageRelationStatistics Valid=197, Invalid=1135, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 05:09:58,944 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 184 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 3609 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:09:58,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 3609 Invalid, 1953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 05:09:58,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-12-14 05:09:59,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 560. [2022-12-14 05:09:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 387 states have (on average 1.441860465116279) internal successors, (558), 393 states have internal predecessors, (558), 134 states have call successors, (134), 40 states have call predecessors, (134), 38 states have return successors, (134), 128 states have call predecessors, (134), 133 states have call successors, (134) [2022-12-14 05:09:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 826 transitions. [2022-12-14 05:09:59,172 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 826 transitions. Word has length 111 [2022-12-14 05:09:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:09:59,172 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 826 transitions. [2022-12-14 05:09:59,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-12-14 05:09:59,173 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 826 transitions. [2022-12-14 05:09:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 05:09:59,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:59,175 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 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 05:09:59,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:09:59,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:09:59,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:09:59,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:09:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1601993147, now seen corresponding path program 1 times [2022-12-14 05:09:59,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:09:59,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389630656] [2022-12-14 05:09:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:09:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:09:59,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:09:59,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389630656] [2022-12-14 05:09:59,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389630656] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:09:59,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402838495] [2022-12-14 05:09:59,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:59,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:09:59,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:09:59,499 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:09:59,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:09:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:59,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:09:59,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:09:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:09:59,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:09:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:09:59,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402838495] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:09:59,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [674045087] [2022-12-14 05:09:59,809 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2022-12-14 05:09:59,809 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:09:59,809 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:09:59,810 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:09:59,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:10:29,967 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 05:10:30,252 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 05:10:30,313 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 05:10:30,376 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-12-14 05:10:30,437 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 05:10:30,729 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:11:07,589 WARN L233 SmtUtils]: Spent 9.56s on a formula simplification. DAG size of input: 623 DAG size of output: 473 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:11:16,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [674045087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:11:16,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:11:16,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 05:11:16,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463253177] [2022-12-14 05:11:16,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:11:16,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 05:11:16,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:11:16,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 05:11:16,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 05:11:16,814 INFO L87 Difference]: Start difference. First operand 560 states and 826 transitions. Second operand has 30 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2022-12-14 05:11:45,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:11:45,615 INFO L93 Difference]: Finished difference Result 1010 states and 1528 transitions. [2022-12-14 05:11:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-14 05:11:45,616 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) Word has length 114 [2022-12-14 05:11:45,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:11:45,618 INFO L225 Difference]: With dead ends: 1010 [2022-12-14 05:11:45,618 INFO L226 Difference]: Without dead ends: 658 [2022-12-14 05:11:45,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 309 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 62.2s TimeCoverageRelationStatistics Valid=185, Invalid=1707, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 05:11:45,620 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 172 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 4138 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 4615 SdHoareTripleChecker+Invalid, 4156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:11:45,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 4615 Invalid, 4156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 4138 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-12-14 05:11:45,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-12-14 05:11:45,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 597. [2022-12-14 05:11:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 417 states have (on average 1.4388489208633093) internal successors, (600), 424 states have internal predecessors, (600), 138 states have call successors, (138), 43 states have call predecessors, (138), 41 states have return successors, (138), 131 states have call predecessors, (138), 137 states have call successors, (138) [2022-12-14 05:11:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 876 transitions. [2022-12-14 05:11:45,893 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 876 transitions. Word has length 114 [2022-12-14 05:11:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:11:45,893 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 876 transitions. [2022-12-14 05:11:45,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2022-12-14 05:11:45,893 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 876 transitions. [2022-12-14 05:11:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 05:11:45,895 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:11:45,895 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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 05:11:45,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 05:11:46,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:11:46,097 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:11:46,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:11:46,098 INFO L85 PathProgramCache]: Analyzing trace with hash 5385133, now seen corresponding path program 1 times [2022-12-14 05:11:46,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:11:46,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247407714] [2022-12-14 05:11:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:11:46,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:11:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:11:46,441 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-14 05:11:46,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:11:46,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247407714] [2022-12-14 05:11:46,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247407714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:11:46,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:11:46,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 05:11:46,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943278813] [2022-12-14 05:11:46,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:11:46,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 05:11:46,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:11:46,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 05:11:46,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:11:46,443 INFO L87 Difference]: Start difference. First operand 597 states and 876 transitions. Second operand has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 5 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2022-12-14 05:11:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:11:47,787 INFO L93 Difference]: Finished difference Result 1064 states and 1539 transitions. [2022-12-14 05:11:47,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 05:11:47,787 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 5 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 116 [2022-12-14 05:11:47,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:11:47,793 INFO L225 Difference]: With dead ends: 1064 [2022-12-14 05:11:47,793 INFO L226 Difference]: Without dead ends: 939 [2022-12-14 05:11:47,794 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 05:11:47,794 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 411 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:11:47,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 1895 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 05:11:47,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-12-14 05:11:48,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 930. [2022-12-14 05:11:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 628 states have (on average 1.4426751592356688) internal successors, (906), 639 states have internal predecessors, (906), 235 states have call successors, (235), 69 states have call predecessors, (235), 66 states have return successors, (232), 225 states have call predecessors, (232), 231 states have call successors, (232) [2022-12-14 05:11:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1373 transitions. [2022-12-14 05:11:48,143 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1373 transitions. Word has length 116 [2022-12-14 05:11:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:11:48,143 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1373 transitions. [2022-12-14 05:11:48,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 5 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2022-12-14 05:11:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1373 transitions. [2022-12-14 05:11:48,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 05:11:48,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:11:48,145 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2022-12-14 05:11:48,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:11:48,145 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:11:48,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:11:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash -404454664, now seen corresponding path program 1 times [2022-12-14 05:11:48,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:11:48,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615009440] [2022-12-14 05:11:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:11:48,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:11:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:11:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-14 05:11:48,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:11:48,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615009440] [2022-12-14 05:11:48,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615009440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:11:48,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:11:48,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-14 05:11:48,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600523668] [2022-12-14 05:11:48,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:11:48,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 05:11:48,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:11:48,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 05:11:48,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-12-14 05:11:48,684 INFO L87 Difference]: Start difference. First operand 930 states and 1373 transitions. Second operand has 16 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 10 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) [2022-12-14 05:11:50,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:11:50,407 INFO L93 Difference]: Finished difference Result 1921 states and 2652 transitions. [2022-12-14 05:11:50,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 05:11:50,407 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 10 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) Word has length 105 [2022-12-14 05:11:50,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:11:50,414 INFO L225 Difference]: With dead ends: 1921 [2022-12-14 05:11:50,414 INFO L226 Difference]: Without dead ends: 1677 [2022-12-14 05:11:50,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=777, Unknown=0, NotChecked=0, Total=930 [2022-12-14 05:11:50,417 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 698 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 2882 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 3260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:11:50,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 2952 Invalid, 3260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2882 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 05:11:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2022-12-14 05:11:50,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1653. [2022-12-14 05:11:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1029 states have (on average 1.3411078717201166) internal successors, (1380), 1057 states have internal predecessors, (1380), 451 states have call successors, (451), 172 states have call predecessors, (451), 172 states have return successors, (465), 431 states have call predecessors, (465), 433 states have call successors, (465) [2022-12-14 05:11:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2296 transitions. [2022-12-14 05:11:50,793 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2296 transitions. Word has length 105 [2022-12-14 05:11:50,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:11:50,793 INFO L495 AbstractCegarLoop]: Abstraction has 1653 states and 2296 transitions. [2022-12-14 05:11:50,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 10 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) [2022-12-14 05:11:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2296 transitions. [2022-12-14 05:11:50,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 05:11:50,796 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:11:50,796 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2022-12-14 05:11:50,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:11:50,796 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:11:50,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:11:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash -641307040, now seen corresponding path program 1 times [2022-12-14 05:11:50,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:11:50,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847419007] [2022-12-14 05:11:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:11:50,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:11:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:11:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:11:50,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:11:50,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847419007] [2022-12-14 05:11:50,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847419007] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:11:50,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386089931] [2022-12-14 05:11:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:11:50,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:11:50,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:11:50,913 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:11:50,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:11:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:11:51,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:11:51,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:11:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:11:51,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:11:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:11:51,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386089931] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:11:51,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1542021238] [2022-12-14 05:11:51,234 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-12-14 05:11:51,235 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:11:51,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:11:51,235 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:11:51,235 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:12:57,026 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 05:12:57,306 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 268 for LOIs [2022-12-14 05:12:59,020 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 05:12:59,056 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 453 for LOIs [2022-12-14 05:12:59,352 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 268 for LOIs [2022-12-14 05:13:02,423 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 278 for LOIs [2022-12-14 05:13:04,879 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 228 for LOIs [2022-12-14 05:13:04,915 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 248 for LOIs [2022-12-14 05:13:04,983 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 245 for LOIs [2022-12-14 05:13:05,023 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 236 for LOIs [2022-12-14 05:13:05,057 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 253 for LOIs [2022-12-14 05:13:05,102 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:14:55,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1542021238] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:14:55,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:14:55,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [5, 5, 5] total 60 [2022-12-14 05:14:55,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020097405] [2022-12-14 05:14:55,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:14:55,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-14 05:14:55,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:14:55,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-14 05:14:55,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=3372, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 05:14:55,294 INFO L87 Difference]: Start difference. First operand 1653 states and 2296 transitions. Second operand has 55 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 33 states have internal predecessors, (53), 17 states have call successors, (24), 12 states have call predecessors, (24), 9 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2022-12-14 05:15:56,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:56,163 INFO L93 Difference]: Finished difference Result 3284 states and 4592 transitions. [2022-12-14 05:15:56,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-14 05:15:56,164 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 33 states have internal predecessors, (53), 17 states have call successors, (24), 12 states have call predecessors, (24), 9 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) Word has length 111 [2022-12-14 05:15:56,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:56,170 INFO L225 Difference]: With dead ends: 3284 [2022-12-14 05:15:56,170 INFO L226 Difference]: Without dead ends: 1712 [2022-12-14 05:15:56,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 277 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1181 ImplicationChecksByTransitivity, 143.0s TimeCoverageRelationStatistics Valid=257, Invalid=4999, Unknown=0, NotChecked=0, Total=5256 [2022-12-14 05:15:56,176 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 131 mSDsluCounter, 7315 mSDsCounter, 0 mSdLazyCounter, 8743 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 7593 SdHoareTripleChecker+Invalid, 8769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 8743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:56,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 7593 Invalid, 8769 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [26 Valid, 8743 Invalid, 0 Unknown, 0 Unchecked, 27.1s Time] [2022-12-14 05:15:56,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2022-12-14 05:15:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1642. [2022-12-14 05:15:56,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1003 states have (on average 1.3150548354935194) internal successors, (1319), 1029 states have internal predecessors, (1319), 458 states have call successors, (458), 183 states have call predecessors, (458), 180 states have return successors, (475), 437 states have call predecessors, (475), 440 states have call successors, (475) [2022-12-14 05:15:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2252 transitions. [2022-12-14 05:15:56,604 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2252 transitions. Word has length 111 [2022-12-14 05:15:56,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:56,605 INFO L495 AbstractCegarLoop]: Abstraction has 1642 states and 2252 transitions. [2022-12-14 05:15:56,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 33 states have internal predecessors, (53), 17 states have call successors, (24), 12 states have call predecessors, (24), 9 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2022-12-14 05:15:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2252 transitions. [2022-12-14 05:15:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 05:15:56,607 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:56,607 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 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 05:15:56,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 05:15:56,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 05:15:56,808 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:15:56,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:56,808 INFO L85 PathProgramCache]: Analyzing trace with hash 643242323, now seen corresponding path program 1 times [2022-12-14 05:15:56,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:56,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955119840] [2022-12-14 05:15:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:56,920 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 05:15:56,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:56,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955119840] [2022-12-14 05:15:56,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955119840] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:56,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198080520] [2022-12-14 05:15:56,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:56,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:56,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:56,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:56,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa8921b-e057-4f9c-a36f-b091b4e3b0c0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:15:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:57,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:15:57,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:57,180 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 05:15:57,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:15:57,236 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 05:15:57,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198080520] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:15:57,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [700171719] [2022-12-14 05:15:57,238 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-12-14 05:15:57,238 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:15:57,238 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:15:57,238 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:15:57,239 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:17:05,612 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 05:17:05,899 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 05:17:05,959 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 05:17:06,026 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 437 for LOIs [2022-12-14 05:17:33,830 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 454 for LOIs [2022-12-14 05:17:34,171 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 405 for LOIs [2022-12-14 05:17:34,388 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 05:17:34,678 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 435 for LOIs [2022-12-14 05:17:39,463 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 264 for LOIs