./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/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_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/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_37a098a3-4412-4d2b-90a3-22b7cde19825/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 50599b90019c0f8b15701a8959406dc5e052f09e6cd358b81cb6701fde5581e5 --- 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 07:23:47,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:23:47,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:23:47,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:23:47,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:23:47,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:23:47,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:23:47,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:23:47,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:23:47,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:23:47,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:23:47,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:23:47,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:23:47,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:23:47,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:23:47,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:23:47,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:23:47,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:23:47,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:23:47,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:23:47,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:23:47,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:23:47,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:23:47,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:23:47,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:23:47,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:23:47,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:23:47,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:23:47,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:23:47,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:23:47,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:23:47,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:23:47,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:23:47,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:23:47,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:23:47,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:23:47,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:23:47,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:23:47,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:23:47,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:23:47,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:23:47,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:23:47,552 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:23:47,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:23:47,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:23:47,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:23:47,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:23:47,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:23:47,553 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:23:47,554 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:23:47,554 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:23:47,554 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:23:47,554 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:23:47,554 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:23:47,554 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:23:47,555 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:23:47,555 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:23:47,555 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:23:47,555 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:23:47,555 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:23:47,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:23:47,556 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:23:47,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:23:47,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:23:47,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:23:47,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:23:47,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:23:47,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:23:47,557 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:23:47,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:23:47,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:23:47,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:23:47,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:23:47,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:23:47,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:23:47,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:23:47,558 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:23:47,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:23:47,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:23:47,558 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:23:47,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:23:47,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:23:47,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:23:47,558 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_37a098a3-4412-4d2b-90a3-22b7cde19825/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50599b90019c0f8b15701a8959406dc5e052f09e6cd358b81cb6701fde5581e5 [2022-12-14 07:23:47,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:23:47,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:23:47,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:23:47,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:23:47,771 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:23:47,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product32.cil.c [2022-12-14 07:23:50,399 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:23:50,655 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:23:50,655 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/sv-benchmarks/c/product-lines/email_spec9_product32.cil.c [2022-12-14 07:23:50,671 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/data/198066352/bc82e729c25d4d67a899049b30bbe60e/FLAGc51f796c3 [2022-12-14 07:23:50,684 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/data/198066352/bc82e729c25d4d67a899049b30bbe60e [2022-12-14 07:23:50,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:23:50,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:23:50,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:23:50,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:23:50,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:23:50,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:23:50" (1/1) ... [2022-12-14 07:23:50,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8fbfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:50, skipping insertion in model container [2022-12-14 07:23:50,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:23:50" (1/1) ... [2022-12-14 07:23:50,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:23:50,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:23:50,976 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:50,983 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:50,984 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:50,986 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:50,999 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,088 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_37a098a3-4412-4d2b-90a3-22b7cde19825/sv-benchmarks/c/product-lines/email_spec9_product32.cil.c[51167,51180] [2022-12-14 07:23:51,091 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,093 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,135 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,136 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,138 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:23:51,151 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:23:51,171 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,172 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,173 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,174 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,178 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,206 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_37a098a3-4412-4d2b-90a3-22b7cde19825/sv-benchmarks/c/product-lines/email_spec9_product32.cil.c[51167,51180] [2022-12-14 07:23:51,207 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,208 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,220 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,220 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,222 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:23:51,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:23:51,245 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:23:51,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51 WrapperNode [2022-12-14 07:23:51,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:23:51,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:23:51,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:23:51,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:23:51,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,312 INFO L138 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 62, calls inlined = 54, statements flattened = 1001 [2022-12-14 07:23:51,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:23:51,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:23:51,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:23:51,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:23:51,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,360 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:23:51,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:23:51,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:23:51,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:23:51,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (1/1) ... [2022-12-14 07:23:51,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:23:51,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:23:51,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:23:51,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:23:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 07:23:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 07:23:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 07:23:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 07:23:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 07:23:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 07:23:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 07:23:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 07:23:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 07:23:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 07:23:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 07:23:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 07:23:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 07:23:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 07:23:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 07:23:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 07:23:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 07:23:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 07:23:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 07:23:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 07:23:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 07:23:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 07:23:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 07:23:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 07:23:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 07:23:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 07:23:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 07:23:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 07:23:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 07:23:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 07:23:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 07:23:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:23:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 07:23:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 07:23:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 07:23:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 07:23:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 07:23:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 07:23:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 07:23:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 07:23:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 07:23:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 07:23:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 07:23:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 07:23:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 07:23:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 07:23:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 07:23:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 07:23:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 07:23:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 07:23:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 07:23:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 07:23:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 07:23:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 07:23:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:23:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 07:23:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 07:23:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 07:23:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 07:23:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:23:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:23:51,604 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:23:51,606 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:23:52,207 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:23:52,554 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:23:52,554 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:23:52,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:23:52 BoogieIcfgContainer [2022-12-14 07:23:52,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:23:52,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:23:52,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:23:52,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:23:52,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:23:50" (1/3) ... [2022-12-14 07:23:52,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd3ba55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:23:52, skipping insertion in model container [2022-12-14 07:23:52,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:23:51" (2/3) ... [2022-12-14 07:23:52,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd3ba55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:23:52, skipping insertion in model container [2022-12-14 07:23:52,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:23:52" (3/3) ... [2022-12-14 07:23:52,563 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product32.cil.c [2022-12-14 07:23:52,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:23:52,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:23:52,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:23:52,627 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;@ea17914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:23:52,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:23:52,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 129 states have internal predecessors, (162), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 07:23:52,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 07:23:52,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:23:52,643 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:23:52,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:23:52,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:23:52,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1880117654, now seen corresponding path program 1 times [2022-12-14 07:23:52,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:23:52,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644273890] [2022-12-14 07:23:52,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:23:52,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:23:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:23:52,919 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:23:52,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:23:52,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644273890] [2022-12-14 07:23:52,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644273890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:23:52,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:23:52,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:23:52,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148078383] [2022-12-14 07:23:52,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:23:52,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:23:52,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:23:52,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:23:52,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:23:52,954 INFO L87 Difference]: Start difference. First operand has 219 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 129 states have internal predecessors, (162), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:23:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:23:53,098 INFO L93 Difference]: Finished difference Result 346 states and 455 transitions. [2022-12-14 07:23:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:23:53,100 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 07:23:53,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:23:53,108 INFO L225 Difference]: With dead ends: 346 [2022-12-14 07:23:53,108 INFO L226 Difference]: Without dead ends: 216 [2022-12-14 07:23:53,112 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 07:23:53,114 INFO L413 NwaCegarLoop]: 247 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, 247 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 07:23:53,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:23:53,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-12-14 07:23:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-12-14 07:23:53,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 122 states have (on average 1.278688524590164) internal successors, (156), 126 states have internal predecessors, (156), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 07:23:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 285 transitions. [2022-12-14 07:23:53,156 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 285 transitions. Word has length 71 [2022-12-14 07:23:53,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:23:53,157 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 285 transitions. [2022-12-14 07:23:53,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:23:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 285 transitions. [2022-12-14 07:23:53,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 07:23:53,160 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:23:53,160 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:23:53,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:23:53,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:23:53,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:23:53,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1567380629, now seen corresponding path program 1 times [2022-12-14 07:23:53,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:23:53,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038119781] [2022-12-14 07:23:53,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:23:53,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:23:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:23:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:23:53,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:23:53,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038119781] [2022-12-14 07:23:53,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038119781] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:23:53,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:23:53,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:23:53,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460297162] [2022-12-14 07:23:53,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:23:53,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:23:53,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:23:53,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:23:53,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:23:53,299 INFO L87 Difference]: Start difference. First operand 216 states and 285 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:23:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:23:53,415 INFO L93 Difference]: Finished difference Result 342 states and 440 transitions. [2022-12-14 07:23:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:23:53,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 07:23:53,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:23:53,417 INFO L225 Difference]: With dead ends: 342 [2022-12-14 07:23:53,417 INFO L226 Difference]: Without dead ends: 218 [2022-12-14 07:23:53,418 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 07:23:53,419 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 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 07:23:53,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:23:53,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-12-14 07:23:53,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-12-14 07:23:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 07:23:53,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2022-12-14 07:23:53,432 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 72 [2022-12-14 07:23:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:23:53,433 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2022-12-14 07:23:53,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:23:53,433 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2022-12-14 07:23:53,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 07:23:53,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:23:53,435 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:23:53,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:23:53,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:23:53,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:23:53,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1970827826, now seen corresponding path program 1 times [2022-12-14 07:23:53,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:23:53,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658293618] [2022-12-14 07:23:53,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:23:53,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:23:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:23:53,507 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:23:53,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:23:53,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658293618] [2022-12-14 07:23:53,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658293618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:23:53,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:23:53,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:23:53,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343374489] [2022-12-14 07:23:53,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:23:53,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:23:53,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:23:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:23:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:23:53,510 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:23:53,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:23:53,622 INFO L93 Difference]: Finished difference Result 471 states and 641 transitions. [2022-12-14 07:23:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:23:53,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 07:23:53,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:23:53,624 INFO L225 Difference]: With dead ends: 471 [2022-12-14 07:23:53,624 INFO L226 Difference]: Without dead ends: 271 [2022-12-14 07:23:53,625 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 07:23:53,626 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 59 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:23:53,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 505 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:23:53,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-12-14 07:23:53,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 266. [2022-12-14 07:23:53,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 162 states have internal predecessors, (213), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2022-12-14 07:23:53,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 370 transitions. [2022-12-14 07:23:53,642 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 370 transitions. Word has length 77 [2022-12-14 07:23:53,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:23:53,642 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 370 transitions. [2022-12-14 07:23:53,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:23:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 370 transitions. [2022-12-14 07:23:53,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 07:23:53,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:23:53,644 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:23:53,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:23:53,645 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:23:53,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:23:53,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1448035010, now seen corresponding path program 1 times [2022-12-14 07:23:53,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:23:53,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345649130] [2022-12-14 07:23:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:23:53,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:23:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:23:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:23:53,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:23:53,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345649130] [2022-12-14 07:23:53,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345649130] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:23:53,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58304541] [2022-12-14 07:23:53,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:23:53,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:23:53,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:23:53,754 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:23:53,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:23:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:23:53,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:23:53,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:23:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:23:54,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:23:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:23:54,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58304541] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:23:54,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [553382650] [2022-12-14 07:23:54,101 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 07:23:54,102 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:23:54,104 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:23:54,108 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:23:54,109 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:24:23,274 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 07:24:23,558 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 07:24:23,849 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:25:10,103 WARN L233 SmtUtils]: Spent 11.39s on a formula simplification. DAG size of input: 593 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:25:17,918 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 595 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:25:25,018 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 594 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:25:32,585 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 592 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:25:36,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [553382650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:36,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:25:36,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 07:25:36,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414701350] [2022-12-14 07:25:36,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:36,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 07:25:36,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:25:36,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 07:25:36,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 07:25:36,308 INFO L87 Difference]: Start difference. First operand 266 states and 370 transitions. Second operand has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-12-14 07:25:43,080 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 580 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:25:52,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:52,892 INFO L93 Difference]: Finished difference Result 618 states and 914 transitions. [2022-12-14 07:25:52,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 07:25:52,893 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2022-12-14 07:25:52,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:52,894 INFO L225 Difference]: With dead ends: 618 [2022-12-14 07:25:52,895 INFO L226 Difference]: Without dead ends: 370 [2022-12-14 07:25:52,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 82.1s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 07:25:52,896 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 196 mSDsluCounter, 3606 mSDsCounter, 0 mSdLazyCounter, 2109 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3873 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:52,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 3873 Invalid, 2128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2109 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 07:25:52,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-12-14 07:25:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 294. [2022-12-14 07:25:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 189 states have internal predecessors, (252), 79 states have call successors, (79), 29 states have call predecessors, (79), 29 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2022-12-14 07:25:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 409 transitions. [2022-12-14 07:25:52,985 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 409 transitions. Word has length 78 [2022-12-14 07:25:52,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:52,986 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 409 transitions. [2022-12-14 07:25:52,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-12-14 07:25:52,986 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 409 transitions. [2022-12-14 07:25:52,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 07:25:52,988 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:52,988 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:52,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:25:53,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:25:53,190 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:25:53,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:53,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2130583693, now seen corresponding path program 1 times [2022-12-14 07:25:53,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:25:53,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532678864] [2022-12-14 07:25:53,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:53,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:25:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:53,316 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:25:53,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:25:53,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532678864] [2022-12-14 07:25:53,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532678864] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:25:53,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463202359] [2022-12-14 07:25:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:53,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:25:53,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:25:53,317 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:25:53,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:25:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:53,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:25:53,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:25:53,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:25:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:25:53,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463202359] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:25:53,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1802109213] [2022-12-14 07:25:53,608 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 07:25:53,608 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:25:53,608 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:25:53,609 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:25:53,609 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:26:33,022 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 07:26:33,309 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 07:26:33,588 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:27:15,579 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 583 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:27:35,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1802109213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:27:35,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:27:35,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 07:27:35,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3951869] [2022-12-14 07:27:35,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:27:35,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 07:27:35,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:27:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 07:27:35,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-12-14 07:27:35,399 INFO L87 Difference]: Start difference. First operand 294 states and 409 transitions. Second operand has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 07:27:55,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:27:55,955 INFO L93 Difference]: Finished difference Result 673 states and 993 transitions. [2022-12-14 07:27:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 07:27:55,955 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2022-12-14 07:27:55,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:27:55,959 INFO L225 Difference]: With dead ends: 673 [2022-12-14 07:27:55,959 INFO L226 Difference]: Without dead ends: 425 [2022-12-14 07:27:55,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 74.2s TimeCoverageRelationStatistics Valid=182, Invalid=1300, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 07:27:55,961 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 184 mSDsluCounter, 4137 mSDsCounter, 0 mSdLazyCounter, 2806 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 4407 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:27:55,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 4407 Invalid, 2825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2806 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-12-14 07:27:55,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-12-14 07:27:56,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 330. [2022-12-14 07:27:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 218 states have (on average 1.4036697247706422) internal successors, (306), 223 states have internal predecessors, (306), 81 states have call successors, (81), 30 states have call predecessors, (81), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2022-12-14 07:27:56,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 467 transitions. [2022-12-14 07:27:56,121 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 467 transitions. Word has length 84 [2022-12-14 07:27:56,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:27:56,121 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 467 transitions. [2022-12-14 07:27:56,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 07:27:56,121 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 467 transitions. [2022-12-14 07:27:56,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 07:27:56,123 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:27:56,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:27:56,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:27:56,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:27:56,323 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:27:56,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:27:56,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1687798715, now seen corresponding path program 1 times [2022-12-14 07:27:56,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:27:56,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360127224] [2022-12-14 07:27:56,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:27:56,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:27:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:27:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:27:56,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:27:56,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360127224] [2022-12-14 07:27:56,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360127224] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:27:56,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167759012] [2022-12-14 07:27:56,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:27:56,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:27:56,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:27:56,438 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:27:56,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:27:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:27:56,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:27:56,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:27:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:27:56,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:27:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:27:56,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167759012] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:27:56,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [443341411] [2022-12-14 07:27:56,728 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 07:27:56,728 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:27:56,729 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:27:56,729 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:27:56,729 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:28:28,481 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 07:28:28,762 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2022-12-14 07:28:28,824 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 245 for LOIs [2022-12-14 07:28:28,886 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 251 for LOIs [2022-12-14 07:28:28,961 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 07:28:29,254 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:29:18,571 WARN L233 SmtUtils]: Spent 11.42s on a formula simplification. DAG size of input: 636 DAG size of output: 513 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:29:24,798 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 638 DAG size of output: 406 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:29:35,572 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 562 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:29:40,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [443341411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:29:40,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:29:40,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 07:29:40,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701496846] [2022-12-14 07:29:40,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:29:40,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 07:29:40,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:29:40,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 07:29:40,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 07:29:40,589 INFO L87 Difference]: Start difference. First operand 330 states and 467 transitions. Second operand has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 07:29:59,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:29:59,323 INFO L93 Difference]: Finished difference Result 698 states and 1032 transitions. [2022-12-14 07:29:59,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 07:29:59,323 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2022-12-14 07:29:59,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:29:59,325 INFO L225 Difference]: With dead ends: 698 [2022-12-14 07:29:59,325 INFO L226 Difference]: Without dead ends: 450 [2022-12-14 07:29:59,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 77.4s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 07:29:59,326 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 140 mSDsluCounter, 4086 mSDsCounter, 0 mSdLazyCounter, 3818 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 3829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:29:59,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 4339 Invalid, 3829 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3818 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-12-14 07:29:59,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-12-14 07:29:59,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 389. [2022-12-14 07:29:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 270 states have (on average 1.4296296296296296) internal successors, (386), 276 states have internal predecessors, (386), 85 states have call successors, (85), 33 states have call predecessors, (85), 33 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2022-12-14 07:29:59,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 555 transitions. [2022-12-14 07:29:59,532 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 555 transitions. Word has length 87 [2022-12-14 07:29:59,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:29:59,532 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 555 transitions. [2022-12-14 07:29:59,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 07:29:59,532 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 555 transitions. [2022-12-14 07:29:59,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 07:29:59,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:29:59,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:29:59,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:29:59,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:29:59,735 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:29:59,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:29:59,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1485163594, now seen corresponding path program 1 times [2022-12-14 07:29:59,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:29:59,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907712845] [2022-12-14 07:29:59,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:29:59,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:29:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:29:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:29:59,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:29:59,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907712845] [2022-12-14 07:29:59,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907712845] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:29:59,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382369703] [2022-12-14 07:29:59,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:29:59,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:29:59,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:29:59,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:29:59,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:30:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:30:00,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:30:00,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:30:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:30:00,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:30:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:30:00,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382369703] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:30:00,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1232581610] [2022-12-14 07:30:00,183 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 07:30:00,183 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:30:00,184 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:30:00,184 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:30:00,184 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:30:30,708 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 07:30:30,988 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 268 for LOIs [2022-12-14 07:30:32,743 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 07:30:32,779 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 07:30:33,215 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 270 for LOIs [2022-12-14 07:30:35,985 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-12-14 07:30:36,018 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 279 for LOIs [2022-12-14 07:30:42,199 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-12-14 07:30:42,267 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 246 for LOIs [2022-12-14 07:30:42,305 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 485 for LOIs [2022-12-14 07:30:45,346 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-12-14 07:30:45,390 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:31:35,133 WARN L233 SmtUtils]: Spent 11.91s on a formula simplification. DAG size of input: 594 DAG size of output: 463 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:31:41,358 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 596 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:31:48,105 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 595 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:31:54,635 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 593 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:32:55,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1232581610] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:32:55,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:32:55,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 07:32:55,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400854822] [2022-12-14 07:32:55,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:32:55,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 07:32:55,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:32:55,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 07:32:55,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=4218, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 07:32:55,830 INFO L87 Difference]: Start difference. First operand 389 states and 555 transitions. Second operand has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 07:33:17,323 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 595 DAG size of output: 432 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:33:25,748 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 601 DAG size of output: 432 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:33:50,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:33:50,860 INFO L93 Difference]: Finished difference Result 746 states and 1078 transitions. [2022-12-14 07:33:50,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-12-14 07:33:50,861 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 86 [2022-12-14 07:33:50,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:33:50,863 INFO L225 Difference]: With dead ends: 746 [2022-12-14 07:33:50,863 INFO L226 Difference]: Without dead ends: 478 [2022-12-14 07:33:50,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1661 ImplicationChecksByTransitivity, 167.0s TimeCoverageRelationStatistics Valid=390, Invalid=6582, Unknown=0, NotChecked=0, Total=6972 [2022-12-14 07:33:50,866 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 194 mSDsluCounter, 4974 mSDsCounter, 0 mSdLazyCounter, 6406 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 5201 SdHoareTripleChecker+Invalid, 6436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:33:50,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 5201 Invalid, 6436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 6406 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2022-12-14 07:33:50,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-12-14 07:33:51,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 434. [2022-12-14 07:33:51,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 299 states have (on average 1.3879598662207357) internal successors, (415), 305 states have internal predecessors, (415), 95 states have call successors, (95), 42 states have call predecessors, (95), 39 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) [2022-12-14 07:33:51,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 604 transitions. [2022-12-14 07:33:51,139 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 604 transitions. Word has length 86 [2022-12-14 07:33:51,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:33:51,139 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 604 transitions. [2022-12-14 07:33:51,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 07:33:51,139 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 604 transitions. [2022-12-14 07:33:51,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 07:33:51,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:51,141 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:33:51,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:33:51,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:33:51,341 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:33:51,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:51,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1993657625, now seen corresponding path program 1 times [2022-12-14 07:33:51,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:33:51,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377014584] [2022-12-14 07:33:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:51,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:33:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 07:33:51,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:33:51,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377014584] [2022-12-14 07:33:51,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377014584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:33:51,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:33:51,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:33:51,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889733915] [2022-12-14 07:33:51,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:33:51,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:33:51,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:33:51,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:33:51,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:33:51,484 INFO L87 Difference]: Start difference. First operand 434 states and 604 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 07:33:51,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:33:51,953 INFO L93 Difference]: Finished difference Result 601 states and 806 transitions. [2022-12-14 07:33:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:33:51,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2022-12-14 07:33:51,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:33:51,957 INFO L225 Difference]: With dead ends: 601 [2022-12-14 07:33:51,958 INFO L226 Difference]: Without dead ends: 484 [2022-12-14 07:33:51,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:33:51,959 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 146 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:33:51,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 373 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:33:51,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-12-14 07:33:52,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 481. [2022-12-14 07:33:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 322 states have (on average 1.3664596273291925) internal successors, (440), 331 states have internal predecessors, (440), 109 states have call successors, (109), 54 states have call predecessors, (109), 49 states have return successors, (107), 98 states have call predecessors, (107), 107 states have call successors, (107) [2022-12-14 07:33:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 656 transitions. [2022-12-14 07:33:52,236 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 656 transitions. Word has length 89 [2022-12-14 07:33:52,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:33:52,236 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 656 transitions. [2022-12-14 07:33:52,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 07:33:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 656 transitions. [2022-12-14 07:33:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-14 07:33:52,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:52,238 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:33:52,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 07:33:52,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:33:52,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash -513292506, now seen corresponding path program 1 times [2022-12-14 07:33:52,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:33:52,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520663621] [2022-12-14 07:33:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:33:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-12-14 07:33:52,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:33:52,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520663621] [2022-12-14 07:33:52,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520663621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:33:52,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:33:52,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 07:33:52,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545573506] [2022-12-14 07:33:52,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:33:52,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 07:33:52,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:33:52,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 07:33:52,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 07:33:52,621 INFO L87 Difference]: Start difference. First operand 481 states and 656 transitions. Second operand has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-14 07:33:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:33:53,880 INFO L93 Difference]: Finished difference Result 918 states and 1220 transitions. [2022-12-14 07:33:53,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 07:33:53,880 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 152 [2022-12-14 07:33:53,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:33:53,886 INFO L225 Difference]: With dead ends: 918 [2022-12-14 07:33:53,886 INFO L226 Difference]: Without dead ends: 761 [2022-12-14 07:33:53,887 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 07:33:53,887 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 400 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:33:53,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1851 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 07:33:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-12-14 07:33:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 754. [2022-12-14 07:33:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 484 states have (on average 1.359504132231405) internal successors, (658), 498 states have internal predecessors, (658), 186 states have call successors, (186), 90 states have call predecessors, (186), 83 states have return successors, (181), 171 states have call predecessors, (181), 181 states have call successors, (181) [2022-12-14 07:33:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1025 transitions. [2022-12-14 07:33:54,254 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1025 transitions. Word has length 152 [2022-12-14 07:33:54,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:33:54,254 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1025 transitions. [2022-12-14 07:33:54,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-14 07:33:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1025 transitions. [2022-12-14 07:33:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-14 07:33:54,256 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:54,257 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:33:54,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 07:33:54,257 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:33:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1914034092, now seen corresponding path program 1 times [2022-12-14 07:33:54,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:33:54,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561764184] [2022-12-14 07:33:54,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:54,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:33:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 07:33:54,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:33:54,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561764184] [2022-12-14 07:33:54,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561764184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:33:54,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:33:54,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:33:54,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113716843] [2022-12-14 07:33:54,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:33:54,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:33:54,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:33:54,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:33:54,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:33:54,531 INFO L87 Difference]: Start difference. First operand 754 states and 1025 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-14 07:33:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:33:55,642 INFO L93 Difference]: Finished difference Result 1193 states and 1554 transitions. [2022-12-14 07:33:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:33:55,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 151 [2022-12-14 07:33:55,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:33:55,648 INFO L225 Difference]: With dead ends: 1193 [2022-12-14 07:33:55,648 INFO L226 Difference]: Without dead ends: 939 [2022-12-14 07:33:55,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:33:55,649 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 258 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:33:55,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 480 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 07:33:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-12-14 07:33:55,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 931. [2022-12-14 07:33:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 579 states have (on average 1.3281519861830742) internal successors, (769), 601 states have internal predecessors, (769), 234 states have call successors, (234), 122 states have call predecessors, (234), 117 states have return successors, (232), 216 states have call predecessors, (232), 228 states have call successors, (232) [2022-12-14 07:33:55,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1235 transitions. [2022-12-14 07:33:55,992 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1235 transitions. Word has length 151 [2022-12-14 07:33:55,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:33:55,992 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1235 transitions. [2022-12-14 07:33:55,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-14 07:33:55,992 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1235 transitions. [2022-12-14 07:33:55,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-14 07:33:55,994 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:55,994 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:33:55,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 07:33:55,994 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:33:55,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:55,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1914993600, now seen corresponding path program 1 times [2022-12-14 07:33:55,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:33:55,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18894776] [2022-12-14 07:33:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:55,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:33:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:56,117 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-12-14 07:33:56,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:33:56,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18894776] [2022-12-14 07:33:56,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18894776] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:33:56,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773523540] [2022-12-14 07:33:56,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:56,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:33:56,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:33:56,119 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:33:56,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a098a3-4412-4d2b-90a3-22b7cde19825/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:33:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:56,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:33:56,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:33:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 07:33:56,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:33:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-12-14 07:33:56,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773523540] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:33:56,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2101987447] [2022-12-14 07:33:56,526 INFO L159 IcfgInterpreter]: Started Sifa with 119 locations of interest [2022-12-14 07:33:56,526 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:33:56,527 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:33:56,527 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:33:56,527 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:36:46,511 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 07:36:46,803 INFO L197 IcfgInterpreter]: Interpreting procedure setClientAddressBookAddress with input of size 412 for LOIs [2022-12-14 07:36:47,509 INFO L197 IcfgInterpreter]: Interpreting procedure setClientAddressBookSize with input of size 435 for LOIs [2022-12-14 07:36:47,753 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 07:36:48,031 INFO L180 IcfgInterpreter]: Interpretation finished