./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product20.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_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9d5581bc5c458c0b8250652569dd3286beeda44b685a7a0cdda121612582c0c --- 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 [2022-12-13 16:43:12,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:43:12,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:43:12,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:43:12,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:43:12,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:43:12,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:43:12,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:43:12,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:43:12,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:43:12,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:43:12,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:43:12,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:43:12,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:43:12,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:43:12,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:43:12,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:43:12,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:43:12,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:43:12,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:43:12,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:43:12,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:43:12,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:43:12,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:43:12,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:43:12,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:43:12,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:43:12,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:43:12,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:43:12,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:43:12,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:43:12,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:43:12,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:43:12,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:43:12,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:43:12,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:43:12,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:43:12,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:43:12,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:43:12,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:43:12,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:43:12,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:43:12,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:43:12,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:43:12,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:43:12,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:43:12,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:43:12,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:43:12,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:43:12,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:43:12,576 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:43:12,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:43:12,576 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:43:12,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:43:12,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:43:12,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:43:12,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:43:12,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:43:12,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:43:12,578 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:43:12,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:43:12,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:43:12,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:43:12,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:43:12,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:43:12,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:43:12,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:43:12,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:43:12,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:43:12,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:43:12,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:43:12,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:43:12,580 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:43:12,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:43:12,580 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:43:12,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:43:12,581 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:43:12,581 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d5581bc5c458c0b8250652569dd3286beeda44b685a7a0cdda121612582c0c [2022-12-13 16:43:12,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:43:12,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:43:12,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:43:12,785 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:43:12,785 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:43:12,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec11_product20.cil.c [2022-12-13 16:43:15,334 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:43:15,556 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:43:15,557 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/sv-benchmarks/c/product-lines/email_spec11_product20.cil.c [2022-12-13 16:43:15,566 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/data/d4f99e34a/8b491683a3a042ffaa545955bb7d7920/FLAG3d3cfbce4 [2022-12-13 16:43:15,891 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/data/d4f99e34a/8b491683a3a042ffaa545955bb7d7920 [2022-12-13 16:43:15,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:43:15,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:43:15,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:43:15,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:43:15,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:43:15,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:43:15" (1/1) ... [2022-12-13 16:43:15,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f8db89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:15, skipping insertion in model container [2022-12-13 16:43:15,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:43:15" (1/1) ... [2022-12-13 16:43:15,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:43:15,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:43:16,048 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_0be84c6c-f23b-4db9-be26-eee1c10517c4/sv-benchmarks/c/product-lines/email_spec11_product20.cil.c[1543,1556] [2022-12-13 16:43:16,109 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,113 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,118 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,228 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,250 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,255 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,256 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,257 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,265 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:43:16,317 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:43:16,327 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_0be84c6c-f23b-4db9-be26-eee1c10517c4/sv-benchmarks/c/product-lines/email_spec11_product20.cil.c[1543,1556] [2022-12-13 16:43:16,330 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,330 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,332 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,369 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,370 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,380 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,381 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,381 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,384 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:43:16,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:43:16,438 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:43:16,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16 WrapperNode [2022-12-13 16:43:16,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:43:16,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:43:16,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:43:16,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:43:16,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,497 INFO L138 Inliner]: procedures = 128, calls = 214, calls flagged for inlining = 54, calls inlined = 49, statements flattened = 973 [2022-12-13 16:43:16,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:43:16,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:43:16,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:43:16,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:43:16,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:43:16,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:43:16,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:43:16,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:43:16,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (1/1) ... [2022-12-13 16:43:16,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:43:16,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:16,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:43:16,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:43:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 16:43:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 16:43:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-13 16:43:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-13 16:43:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 16:43:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 16:43:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-13 16:43:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-13 16:43:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 16:43:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 16:43:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-13 16:43:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-13 16:43:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 16:43:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 16:43:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 16:43:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 16:43:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 16:43:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 16:43:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-13 16:43:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-13 16:43:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 16:43:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 16:43:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 16:43:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 16:43:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 16:43:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 16:43:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 16:43:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:43:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 16:43:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 16:43:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 16:43:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 16:43:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 16:43:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 16:43:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 16:43:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 16:43:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 16:43:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 16:43:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-13 16:43:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-13 16:43:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 16:43:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 16:43:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 16:43:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 16:43:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:43:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 16:43:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 16:43:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 16:43:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 16:43:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:43:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:43:16,745 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:43:16,746 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:43:17,302 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:43:17,312 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:43:17,312 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:43:17,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:43:17 BoogieIcfgContainer [2022-12-13 16:43:17,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:43:17,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:43:17,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:43:17,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:43:17,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:43:15" (1/3) ... [2022-12-13 16:43:17,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3797d7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:43:17, skipping insertion in model container [2022-12-13 16:43:17,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:16" (2/3) ... [2022-12-13 16:43:17,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3797d7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:43:17, skipping insertion in model container [2022-12-13 16:43:17,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:43:17" (3/3) ... [2022-12-13 16:43:17,322 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product20.cil.c [2022-12-13 16:43:17,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:43:17,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:43:17,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:43:17,393 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=PETRI_NET, 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;@69f49a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:43:17,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:43:17,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 289 states have (on average 1.57439446366782) internal successors, (455), 294 states have internal predecessors, (455), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-12-13 16:43:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-13 16:43:17,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:17,417 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:43:17,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash -732503312, now seen corresponding path program 1 times [2022-12-13 16:43:17,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:17,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100587799] [2022-12-13 16:43:17,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:17,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:17,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 16:43:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 16:43:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:17,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 16:43:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 16:43:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:43:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:43:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 16:43:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 16:43:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 16:43:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 16:43:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 16:43:18,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:18,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100587799] [2022-12-13 16:43:18,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100587799] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:43:18,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107779407] [2022-12-13 16:43:18,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:18,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:18,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:18,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:43:18,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:43:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:43:18,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:43:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 16:43:18,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:43:18,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107779407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:18,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:43:18,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-12-13 16:43:18,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283542245] [2022-12-13 16:43:18,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:18,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:43:18,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:43:18,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:43:18,357 INFO L87 Difference]: Start difference. First operand has 368 states, 289 states have (on average 1.57439446366782) internal successors, (455), 294 states have internal predecessors, (455), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:18,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:18,399 INFO L93 Difference]: Finished difference Result 543 states and 816 transitions. [2022-12-13 16:43:18,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:43:18,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-12-13 16:43:18,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:18,411 INFO L225 Difference]: With dead ends: 543 [2022-12-13 16:43:18,412 INFO L226 Difference]: Without dead ends: 361 [2022-12-13 16:43:18,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:43:18,418 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:18,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:43:18,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-12-13 16:43:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2022-12-13 16:43:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 283 states have (on average 1.568904593639576) internal successors, (444), 287 states have internal predecessors, (444), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-13 16:43:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 551 transitions. [2022-12-13 16:43:18,463 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 551 transitions. Word has length 118 [2022-12-13 16:43:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:18,464 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 551 transitions. [2022-12-13 16:43:18,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 551 transitions. [2022-12-13 16:43:18,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-13 16:43:18,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:18,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:43:18,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:43:18,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 16:43:18,669 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash 756418028, now seen corresponding path program 1 times [2022-12-13 16:43:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:18,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088633929] [2022-12-13 16:43:18,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:18,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 16:43:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 16:43:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 16:43:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 16:43:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 16:43:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 16:43:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 16:43:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 16:43:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 16:43:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 16:43:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:43:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:43:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 16:43:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 16:43:18,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:18,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088633929] [2022-12-13 16:43:18,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088633929] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:43:18,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140382495] [2022-12-13 16:43:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:18,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:18,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:18,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:43:18,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 16:43:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:43:19,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:43:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-12-13 16:43:19,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:43:19,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140382495] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:19,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:43:19,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 16:43:19,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067098125] [2022-12-13 16:43:19,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:19,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:43:19,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:19,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:43:19,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:43:19,259 INFO L87 Difference]: Start difference. First operand 361 states and 551 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:43:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:19,292 INFO L93 Difference]: Finished difference Result 533 states and 794 transitions. [2022-12-13 16:43:19,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:43:19,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2022-12-13 16:43:19,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:19,295 INFO L225 Difference]: With dead ends: 533 [2022-12-13 16:43:19,295 INFO L226 Difference]: Without dead ends: 364 [2022-12-13 16:43:19,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:43:19,297 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 1 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:19,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1096 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:43:19,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-12-13 16:43:19,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 363. [2022-12-13 16:43:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 285 states have (on average 1.5649122807017544) internal successors, (446), 289 states have internal predecessors, (446), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-13 16:43:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 553 transitions. [2022-12-13 16:43:19,314 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 553 transitions. Word has length 138 [2022-12-13 16:43:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:19,315 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 553 transitions. [2022-12-13 16:43:19,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:43:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 553 transitions. [2022-12-13 16:43:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-13 16:43:19,317 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:19,317 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-12-13 16:43:19,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 16:43:19,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:19,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:19,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:19,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1738665915, now seen corresponding path program 1 times [2022-12-13 16:43:19,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:19,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674408966] [2022-12-13 16:43:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 16:43:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 16:43:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 16:43:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 16:43:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 16:43:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 16:43:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 16:43:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:43:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:43:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:43:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:19,836 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 16:43:19,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:19,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674408966] [2022-12-13 16:43:19,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674408966] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:43:19,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870742872] [2022-12-13 16:43:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:19,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:19,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:19,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:43:19,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 16:43:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:43:20,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:43:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 16:43:20,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:43:20,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870742872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:20,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:43:20,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 16:43:20,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153425773] [2022-12-13 16:43:20,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:20,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:43:20,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:20,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:43:20,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:43:20,090 INFO L87 Difference]: Start difference. First operand 363 states and 553 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:20,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:20,120 INFO L93 Difference]: Finished difference Result 774 states and 1198 transitions. [2022-12-13 16:43:20,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:43:20,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2022-12-13 16:43:20,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:20,123 INFO L225 Difference]: With dead ends: 774 [2022-12-13 16:43:20,123 INFO L226 Difference]: Without dead ends: 438 [2022-12-13 16:43:20,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:43:20,124 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 134 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:20,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1074 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:43:20,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-12-13 16:43:20,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 430. [2022-12-13 16:43:20,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 338 states have (on average 1.5828402366863905) internal successors, (535), 342 states have internal predecessors, (535), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-13 16:43:20,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 670 transitions. [2022-12-13 16:43:20,142 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 670 transitions. Word has length 128 [2022-12-13 16:43:20,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:20,143 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 670 transitions. [2022-12-13 16:43:20,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 670 transitions. [2022-12-13 16:43:20,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-12-13 16:43:20,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:20,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-12-13 16:43:20,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 16:43:20,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:20,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:20,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:20,346 INFO L85 PathProgramCache]: Analyzing trace with hash 167253923, now seen corresponding path program 1 times [2022-12-13 16:43:20,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:20,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550986888] [2022-12-13 16:43:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:20,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 16:43:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 16:43:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 16:43:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 16:43:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 16:43:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:43:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 16:43:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 16:43:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:43:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 16:43:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 16:43:20,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:20,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550986888] [2022-12-13 16:43:20,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550986888] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:43:20,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084786316] [2022-12-13 16:43:20,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:20,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:20,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:20,559 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:43:20,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 16:43:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:20,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1170 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 16:43:20,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:43:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 16:43:20,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:43:20,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084786316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:20,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:43:20,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 16:43:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047090710] [2022-12-13 16:43:20,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:20,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:43:20,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:20,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:43:20,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:43:20,821 INFO L87 Difference]: Start difference. First operand 430 states and 670 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 16:43:20,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:20,889 INFO L93 Difference]: Finished difference Result 851 states and 1330 transitions. [2022-12-13 16:43:20,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:43:20,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 129 [2022-12-13 16:43:20,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:20,892 INFO L225 Difference]: With dead ends: 851 [2022-12-13 16:43:20,892 INFO L226 Difference]: Without dead ends: 432 [2022-12-13 16:43:20,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:20,894 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 152 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:20,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1993 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:43:20,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-12-13 16:43:20,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2022-12-13 16:43:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 339 states have (on average 1.5811209439528024) internal successors, (536), 344 states have internal predecessors, (536), 68 states have call successors, (68), 23 states have call predecessors, (68), 24 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2022-12-13 16:43:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 673 transitions. [2022-12-13 16:43:20,912 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 673 transitions. Word has length 129 [2022-12-13 16:43:20,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:20,912 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 673 transitions. [2022-12-13 16:43:20,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 16:43:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 673 transitions. [2022-12-13 16:43:20,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-13 16:43:20,915 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:20,915 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-12-13 16:43:20,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 16:43:21,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:21,116 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:21,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:21,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2009173091, now seen corresponding path program 1 times [2022-12-13 16:43:21,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:21,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810834511] [2022-12-13 16:43:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:21,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 16:43:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:43:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 16:43:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 16:43:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:43:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:43:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:43:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 16:43:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:43:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 16:43:21,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:21,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810834511] [2022-12-13 16:43:21,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810834511] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:43:21,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117077245] [2022-12-13 16:43:21,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:21,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:21,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:21,329 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:43:21,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 16:43:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:43:21,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:43:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 16:43:21,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:43:21,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117077245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:21,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:43:21,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 16:43:21,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037486847] [2022-12-13 16:43:21,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:21,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:43:21,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:21,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:43:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:43:21,599 INFO L87 Difference]: Start difference. First operand 432 states and 673 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 16:43:21,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:21,667 INFO L93 Difference]: Finished difference Result 853 states and 1335 transitions. [2022-12-13 16:43:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:43:21,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-12-13 16:43:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:21,669 INFO L225 Difference]: With dead ends: 853 [2022-12-13 16:43:21,669 INFO L226 Difference]: Without dead ends: 434 [2022-12-13 16:43:21,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:43:21,671 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 151 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:21,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1982 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:43:21,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-12-13 16:43:21,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2022-12-13 16:43:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 340 states have (on average 1.5794117647058823) internal successors, (537), 346 states have internal predecessors, (537), 68 states have call successors, (68), 23 states have call predecessors, (68), 25 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2022-12-13 16:43:21,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 679 transitions. [2022-12-13 16:43:21,686 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 679 transitions. Word has length 130 [2022-12-13 16:43:21,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:21,686 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 679 transitions. [2022-12-13 16:43:21,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 16:43:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 679 transitions. [2022-12-13 16:43:21,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-13 16:43:21,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:21,688 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-12-13 16:43:21,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 16:43:21,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:21,889 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:21,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:21,889 INFO L85 PathProgramCache]: Analyzing trace with hash 907270775, now seen corresponding path program 1 times [2022-12-13 16:43:21,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:21,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123563373] [2022-12-13 16:43:21,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:21,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 16:43:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 16:43:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 16:43:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:43:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 16:43:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 16:43:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 16:43:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:43:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 16:43:22,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:22,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123563373] [2022-12-13 16:43:22,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123563373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:22,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:22,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:43:22,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980486830] [2022-12-13 16:43:22,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:22,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:43:22,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:22,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:43:22,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:43:22,053 INFO L87 Difference]: Start difference. First operand 434 states and 679 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 16:43:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:23,765 INFO L93 Difference]: Finished difference Result 953 states and 1514 transitions. [2022-12-13 16:43:23,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:43:23,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-12-13 16:43:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:23,770 INFO L225 Difference]: With dead ends: 953 [2022-12-13 16:43:23,770 INFO L226 Difference]: Without dead ends: 542 [2022-12-13 16:43:23,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 16:43:23,772 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1332 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:23,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 1192 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 16:43:23,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-12-13 16:43:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 434. [2022-12-13 16:43:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 340 states have (on average 1.5794117647058823) internal successors, (537), 346 states have internal predecessors, (537), 68 states have call successors, (68), 23 states have call predecessors, (68), 25 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2022-12-13 16:43:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 678 transitions. [2022-12-13 16:43:23,811 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 678 transitions. Word has length 131 [2022-12-13 16:43:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:23,812 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 678 transitions. [2022-12-13 16:43:23,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 16:43:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 678 transitions. [2022-12-13 16:43:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 16:43:23,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:23,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 16:43:23,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:43:23,814 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:23,815 INFO L85 PathProgramCache]: Analyzing trace with hash -176571027, now seen corresponding path program 1 times [2022-12-13 16:43:23,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:23,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739683891] [2022-12-13 16:43:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:23,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 16:43:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:43:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:43:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 16:43:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 16:43:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 16:43:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 16:43:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:43:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:43:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 16:43:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:43:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:24,000 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 16:43:24,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:24,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739683891] [2022-12-13 16:43:24,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739683891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:24,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:24,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:43:24,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685846746] [2022-12-13 16:43:24,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:24,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:43:24,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:24,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:43:24,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:43:24,002 INFO L87 Difference]: Start difference. First operand 434 states and 678 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 16:43:25,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:25,520 INFO L93 Difference]: Finished difference Result 955 states and 1517 transitions. [2022-12-13 16:43:25,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:43:25,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 151 [2022-12-13 16:43:25,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:25,525 INFO L225 Difference]: With dead ends: 955 [2022-12-13 16:43:25,526 INFO L226 Difference]: Without dead ends: 544 [2022-12-13 16:43:25,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 16:43:25,528 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1342 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2333 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 2333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:25,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1192 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 2333 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 16:43:25,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-12-13 16:43:25,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 436. [2022-12-13 16:43:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 348 states have internal predecessors, (538), 68 states have call successors, (68), 23 states have call predecessors, (68), 26 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2022-12-13 16:43:25,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 681 transitions. [2022-12-13 16:43:25,551 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 681 transitions. Word has length 151 [2022-12-13 16:43:25,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:25,551 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 681 transitions. [2022-12-13 16:43:25,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 16:43:25,551 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 681 transitions. [2022-12-13 16:43:25,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 16:43:25,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:25,553 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2022-12-13 16:43:25,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:43:25,554 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:25,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:25,554 INFO L85 PathProgramCache]: Analyzing trace with hash 2000120032, now seen corresponding path program 1 times [2022-12-13 16:43:25,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:25,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765454036] [2022-12-13 16:43:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:25,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 16:43:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:43:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 16:43:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 16:43:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 16:43:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:43:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 16:43:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:43:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:43:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 16:43:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:25,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:25,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765454036] [2022-12-13 16:43:25,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765454036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:25,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:25,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 16:43:25,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807807017] [2022-12-13 16:43:25,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:25,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 16:43:25,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:25,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 16:43:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:43:25,754 INFO L87 Difference]: Start difference. First operand 436 states and 681 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-12-13 16:43:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:27,489 INFO L93 Difference]: Finished difference Result 953 states and 1512 transitions. [2022-12-13 16:43:27,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:43:27,490 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 152 [2022-12-13 16:43:27,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:27,492 INFO L225 Difference]: With dead ends: 953 [2022-12-13 16:43:27,492 INFO L226 Difference]: Without dead ends: 544 [2022-12-13 16:43:27,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:43:27,493 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1512 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3807 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 4300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 3807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:27,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1557 Invalid, 4300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 3807 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 16:43:27,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-12-13 16:43:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 436. [2022-12-13 16:43:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 348 states have internal predecessors, (538), 68 states have call successors, (68), 23 states have call predecessors, (68), 26 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2022-12-13 16:43:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 680 transitions. [2022-12-13 16:43:27,516 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 680 transitions. Word has length 152 [2022-12-13 16:43:27,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:27,517 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 680 transitions. [2022-12-13 16:43:27,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-12-13 16:43:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 680 transitions. [2022-12-13 16:43:27,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-13 16:43:27,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:27,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1] [2022-12-13 16:43:27,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:43:27,519 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:27,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:27,519 INFO L85 PathProgramCache]: Analyzing trace with hash -595675742, now seen corresponding path program 2 times [2022-12-13 16:43:27,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:27,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391361687] [2022-12-13 16:43:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:27,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 16:43:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 16:43:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:43:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:43:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:43:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 16:43:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 16:43:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 16:43:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 16:43:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 16:43:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:27,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:27,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391361687] [2022-12-13 16:43:27,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391361687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:27,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:27,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 16:43:27,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249048285] [2022-12-13 16:43:27,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:27,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 16:43:27,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:27,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 16:43:27,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:43:27,695 INFO L87 Difference]: Start difference. First operand 436 states and 680 transitions. Second operand has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-12-13 16:43:29,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:29,507 INFO L93 Difference]: Finished difference Result 955 states and 1518 transitions. [2022-12-13 16:43:29,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:43:29,508 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 153 [2022-12-13 16:43:29,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:29,510 INFO L225 Difference]: With dead ends: 955 [2022-12-13 16:43:29,510 INFO L226 Difference]: Without dead ends: 546 [2022-12-13 16:43:29,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:43:29,511 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1494 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3898 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 4374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 3898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:29,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1557 Invalid, 4374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 3898 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 16:43:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-12-13 16:43:29,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 438. [2022-12-13 16:43:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 342 states have (on average 1.5760233918128654) internal successors, (539), 350 states have internal predecessors, (539), 68 states have call successors, (68), 23 states have call predecessors, (68), 27 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2022-12-13 16:43:29,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 686 transitions. [2022-12-13 16:43:29,536 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 686 transitions. Word has length 153 [2022-12-13 16:43:29,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:29,536 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 686 transitions. [2022-12-13 16:43:29,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-12-13 16:43:29,536 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 686 transitions. [2022-12-13 16:43:29,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-13 16:43:29,538 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:29,538 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-12-13 16:43:29,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:43:29,538 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:29,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:29,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1653108027, now seen corresponding path program 1 times [2022-12-13 16:43:29,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:29,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635721625] [2022-12-13 16:43:29,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:29,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 16:43:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 16:43:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 16:43:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 16:43:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 16:43:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:43:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 16:43:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 16:43:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 16:43:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 16:43:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-13 16:43:29,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:29,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635721625] [2022-12-13 16:43:29,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635721625] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:43:29,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793197430] [2022-12-13 16:43:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:29,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:29,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:29,715 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:43:29,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 16:43:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:29,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:43:29,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:43:29,947 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:43:29,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:43:30,009 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:43:30,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793197430] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:43:30,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:43:30,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-12-13 16:43:30,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677510675] [2022-12-13 16:43:30,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:43:30,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 16:43:30,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:30,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 16:43:30,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:43:30,011 INFO L87 Difference]: Start difference. First operand 438 states and 686 transitions. Second operand has 15 states, 14 states have (on average 11.214285714285714) internal successors, (157), 11 states have internal predecessors, (157), 4 states have call successors, (41), 6 states have call predecessors, (41), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2022-12-13 16:43:32,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:32,557 INFO L93 Difference]: Finished difference Result 1814 states and 3076 transitions. [2022-12-13 16:43:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 16:43:32,558 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.214285714285714) internal successors, (157), 11 states have internal predecessors, (157), 4 states have call successors, (41), 6 states have call predecessors, (41), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 154 [2022-12-13 16:43:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:32,562 INFO L225 Difference]: With dead ends: 1814 [2022-12-13 16:43:32,562 INFO L226 Difference]: Without dead ends: 1407 [2022-12-13 16:43:32,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-12-13 16:43:32,564 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 3809 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 5764 mSolverCounterSat, 1425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3811 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 7189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1425 IncrementalHoareTripleChecker+Valid, 5764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:32,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3811 Valid, 3846 Invalid, 7189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1425 Valid, 5764 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 16:43:32,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2022-12-13 16:43:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 856. [2022-12-13 16:43:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 681 states have (on average 1.6226138032305433) internal successors, (1105), 689 states have internal predecessors, (1105), 147 states have call successors, (147), 23 states have call predecessors, (147), 27 states have return successors, (168), 145 states have call predecessors, (168), 146 states have call successors, (168) [2022-12-13 16:43:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1420 transitions. [2022-12-13 16:43:32,634 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1420 transitions. Word has length 154 [2022-12-13 16:43:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:32,634 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 1420 transitions. [2022-12-13 16:43:32,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.214285714285714) internal successors, (157), 11 states have internal predecessors, (157), 4 states have call successors, (41), 6 states have call predecessors, (41), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2022-12-13 16:43:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1420 transitions. [2022-12-13 16:43:32,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-13 16:43:32,637 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:32,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-12-13 16:43:32,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 16:43:32,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 16:43:32,839 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:32,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:32,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1577430670, now seen corresponding path program 1 times [2022-12-13 16:43:32,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:32,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435123024] [2022-12-13 16:43:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:32,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:43:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:43:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 16:43:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 16:43:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:43:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:43:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 16:43:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:32,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:32,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435123024] [2022-12-13 16:43:32,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435123024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:32,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:32,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:32,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828306157] [2022-12-13 16:43:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:32,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:32,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:32,958 INFO L87 Difference]: Start difference. First operand 856 states and 1420 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:34,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:34,011 INFO L93 Difference]: Finished difference Result 2140 states and 3644 transitions. [2022-12-13 16:43:34,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:43:34,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 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 138 [2022-12-13 16:43:34,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:34,015 INFO L225 Difference]: With dead ends: 2140 [2022-12-13 16:43:34,015 INFO L226 Difference]: Without dead ends: 1362 [2022-12-13 16:43:34,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:34,017 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1346 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:34,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 1027 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:43:34,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-12-13 16:43:34,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1246. [2022-12-13 16:43:34,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 992 states have (on average 1.6381048387096775) internal successors, (1625), 1000 states have internal predecessors, (1625), 226 states have call successors, (226), 23 states have call predecessors, (226), 27 states have return successors, (257), 224 states have call predecessors, (257), 225 states have call successors, (257) [2022-12-13 16:43:34,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 2108 transitions. [2022-12-13 16:43:34,108 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 2108 transitions. Word has length 138 [2022-12-13 16:43:34,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:34,108 INFO L495 AbstractCegarLoop]: Abstraction has 1246 states and 2108 transitions. [2022-12-13 16:43:34,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:34,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 2108 transitions. [2022-12-13 16:43:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-13 16:43:34,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:34,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-12-13 16:43:34,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:43:34,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:34,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:34,115 INFO L85 PathProgramCache]: Analyzing trace with hash 897583237, now seen corresponding path program 1 times [2022-12-13 16:43:34,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:34,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765898207] [2022-12-13 16:43:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:34,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 16:43:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:43:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:43:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:43:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 16:43:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 16:43:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 16:43:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:34,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:34,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765898207] [2022-12-13 16:43:34,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765898207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:34,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:34,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:34,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380445061] [2022-12-13 16:43:34,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:34,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:34,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:34,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:34,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:34,217 INFO L87 Difference]: Start difference. First operand 1246 states and 2108 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:35,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:35,388 INFO L93 Difference]: Finished difference Result 3114 states and 5353 transitions. [2022-12-13 16:43:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:43:35,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 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 139 [2022-12-13 16:43:35,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:35,396 INFO L225 Difference]: With dead ends: 3114 [2022-12-13 16:43:35,396 INFO L226 Difference]: Without dead ends: 1999 [2022-12-13 16:43:35,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:35,398 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1327 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:35,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 1000 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:43:35,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2022-12-13 16:43:35,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1883. [2022-12-13 16:43:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1883 states, 1510 states have (on average 1.6443708609271523) internal successors, (2483), 1518 states have internal predecessors, (2483), 345 states have call successors, (345), 23 states have call predecessors, (345), 27 states have return successors, (376), 343 states have call predecessors, (376), 344 states have call successors, (376) [2022-12-13 16:43:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 3204 transitions. [2022-12-13 16:43:35,533 INFO L78 Accepts]: Start accepts. Automaton has 1883 states and 3204 transitions. Word has length 139 [2022-12-13 16:43:35,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:35,533 INFO L495 AbstractCegarLoop]: Abstraction has 1883 states and 3204 transitions. [2022-12-13 16:43:35,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1883 states and 3204 transitions. [2022-12-13 16:43:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 16:43:35,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:35,539 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:43:35,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:43:35,539 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:35,540 INFO L85 PathProgramCache]: Analyzing trace with hash -103651076, now seen corresponding path program 1 times [2022-12-13 16:43:35,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:35,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649711233] [2022-12-13 16:43:35,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:35,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 16:43:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:43:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 16:43:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:43:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:43:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 16:43:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 16:43:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 16:43:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 16:43:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 16:43:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:43:35,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:35,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649711233] [2022-12-13 16:43:35,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649711233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:35,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:35,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:35,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662016275] [2022-12-13 16:43:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:35,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:35,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:35,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:35,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:35,639 INFO L87 Difference]: Start difference. First operand 1883 states and 3204 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:43:36,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:36,791 INFO L93 Difference]: Finished difference Result 4594 states and 7964 transitions. [2022-12-13 16:43:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:43:36,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 159 [2022-12-13 16:43:36,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:36,800 INFO L225 Difference]: With dead ends: 4594 [2022-12-13 16:43:36,800 INFO L226 Difference]: Without dead ends: 2977 [2022-12-13 16:43:36,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:36,803 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1328 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:36,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 993 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 16:43:36,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2022-12-13 16:43:37,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2861. [2022-12-13 16:43:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2326 states have (on average 1.6496130696474633) internal successors, (3837), 2334 states have internal predecessors, (3837), 507 states have call successors, (507), 23 states have call predecessors, (507), 27 states have return successors, (554), 505 states have call predecessors, (554), 506 states have call successors, (554) [2022-12-13 16:43:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 4898 transitions. [2022-12-13 16:43:37,060 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 4898 transitions. Word has length 159 [2022-12-13 16:43:37,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:37,060 INFO L495 AbstractCegarLoop]: Abstraction has 2861 states and 4898 transitions. [2022-12-13 16:43:37,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:43:37,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 4898 transitions. [2022-12-13 16:43:37,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 16:43:37,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:37,068 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2022-12-13 16:43:37,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:43:37,068 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:37,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1013225444, now seen corresponding path program 1 times [2022-12-13 16:43:37,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:37,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015915725] [2022-12-13 16:43:37,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:37,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 16:43:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 16:43:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 16:43:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:43:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 16:43:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 16:43:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 16:43:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:37,146 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:37,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:37,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015915725] [2022-12-13 16:43:37,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015915725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:37,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:37,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:37,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411823831] [2022-12-13 16:43:37,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:37,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:37,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:37,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:37,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:37,148 INFO L87 Difference]: Start difference. First operand 2861 states and 4898 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:38,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:38,421 INFO L93 Difference]: Finished difference Result 6933 states and 12099 transitions. [2022-12-13 16:43:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:43:38,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 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 141 [2022-12-13 16:43:38,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:38,434 INFO L225 Difference]: With dead ends: 6933 [2022-12-13 16:43:38,434 INFO L226 Difference]: Without dead ends: 4557 [2022-12-13 16:43:38,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:38,439 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1321 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:38,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 993 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:43:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4557 states. [2022-12-13 16:43:38,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4557 to 4441. [2022-12-13 16:43:38,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4441 states, 3661 states have (on average 1.6533733952472003) internal successors, (6053), 3669 states have internal predecessors, (6053), 752 states have call successors, (752), 23 states have call predecessors, (752), 27 states have return successors, (825), 750 states have call predecessors, (825), 751 states have call successors, (825) [2022-12-13 16:43:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4441 states to 4441 states and 7630 transitions. [2022-12-13 16:43:38,766 INFO L78 Accepts]: Start accepts. Automaton has 4441 states and 7630 transitions. Word has length 141 [2022-12-13 16:43:38,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:38,767 INFO L495 AbstractCegarLoop]: Abstraction has 4441 states and 7630 transitions. [2022-12-13 16:43:38,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:38,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4441 states and 7630 transitions. [2022-12-13 16:43:38,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-13 16:43:38,787 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:38,787 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1] [2022-12-13 16:43:38,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:43:38,787 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:38,787 INFO L85 PathProgramCache]: Analyzing trace with hash 819846340, now seen corresponding path program 1 times [2022-12-13 16:43:38,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:38,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594028842] [2022-12-13 16:43:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:38,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 16:43:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 16:43:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:43:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 16:43:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 16:43:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 16:43:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 16:43:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:38,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:38,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594028842] [2022-12-13 16:43:38,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594028842] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:38,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:38,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:38,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595344437] [2022-12-13 16:43:38,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:38,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:38,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:38,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:38,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:38,869 INFO L87 Difference]: Start difference. First operand 4441 states and 7630 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:40,418 INFO L93 Difference]: Finished difference Result 11104 states and 19428 transitions. [2022-12-13 16:43:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:43:40,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 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 142 [2022-12-13 16:43:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:40,444 INFO L225 Difference]: With dead ends: 11104 [2022-12-13 16:43:40,444 INFO L226 Difference]: Without dead ends: 7400 [2022-12-13 16:43:40,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:40,451 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1300 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:40,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1064 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:43:40,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7400 states. [2022-12-13 16:43:40,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7400 to 7284. [2022-12-13 16:43:40,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7284 states, 6011 states have (on average 1.6489768757278322) internal successors, (9912), 6019 states have internal predecessors, (9912), 1245 states have call successors, (1245), 23 states have call predecessors, (1245), 27 states have return successors, (1362), 1243 states have call predecessors, (1362), 1244 states have call successors, (1362) [2022-12-13 16:43:41,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7284 states to 7284 states and 12519 transitions. [2022-12-13 16:43:41,002 INFO L78 Accepts]: Start accepts. Automaton has 7284 states and 12519 transitions. Word has length 142 [2022-12-13 16:43:41,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:41,002 INFO L495 AbstractCegarLoop]: Abstraction has 7284 states and 12519 transitions. [2022-12-13 16:43:41,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:41,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7284 states and 12519 transitions. [2022-12-13 16:43:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 16:43:41,017 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:41,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-12-13 16:43:41,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 16:43:41,017 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:41,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:41,017 INFO L85 PathProgramCache]: Analyzing trace with hash -491247104, now seen corresponding path program 1 times [2022-12-13 16:43:41,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:41,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575470753] [2022-12-13 16:43:41,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:41,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:43:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:43:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 16:43:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:43:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 16:43:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:43:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:43:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:41,099 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:41,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:41,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575470753] [2022-12-13 16:43:41,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575470753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:41,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:41,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:41,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204655375] [2022-12-13 16:43:41,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:41,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:41,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:41,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:41,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:41,100 INFO L87 Difference]: Start difference. First operand 7284 states and 12519 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:43,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:43,039 INFO L93 Difference]: Finished difference Result 18524 states and 32392 transitions. [2022-12-13 16:43:43,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:43:43,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 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 143 [2022-12-13 16:43:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:43,078 INFO L225 Difference]: With dead ends: 18524 [2022-12-13 16:43:43,078 INFO L226 Difference]: Without dead ends: 12379 [2022-12-13 16:43:43,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:43,094 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1298 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:43,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 1006 Invalid, 1905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:43:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12379 states. [2022-12-13 16:43:43,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12379 to 12263. [2022-12-13 16:43:43,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12263 states, 10168 states have (on average 1.64860346184107) internal successors, (16763), 10176 states have internal predecessors, (16763), 2067 states have call successors, (2067), 23 states have call predecessors, (2067), 27 states have return successors, (2262), 2065 states have call predecessors, (2262), 2066 states have call successors, (2262) [2022-12-13 16:43:43,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12263 states to 12263 states and 21092 transitions. [2022-12-13 16:43:43,928 INFO L78 Accepts]: Start accepts. Automaton has 12263 states and 21092 transitions. Word has length 143 [2022-12-13 16:43:43,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:43,928 INFO L495 AbstractCegarLoop]: Abstraction has 12263 states and 21092 transitions. [2022-12-13 16:43:43,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:43,928 INFO L276 IsEmpty]: Start isEmpty. Operand 12263 states and 21092 transitions. [2022-12-13 16:43:43,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 16:43:43,948 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:43,948 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:43:43,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 16:43:43,948 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:43,949 INFO L85 PathProgramCache]: Analyzing trace with hash 67966458, now seen corresponding path program 1 times [2022-12-13 16:43:43,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:43,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876206298] [2022-12-13 16:43:43,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:43,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:43,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:43,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:43,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:43:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 16:43:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 16:43:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:43:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 16:43:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 16:43:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 16:43:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 16:43:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:43:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:43:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:43:44,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:44,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876206298] [2022-12-13 16:43:44,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876206298] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:44,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:44,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:44,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792875213] [2022-12-13 16:43:44,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:44,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:44,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:44,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:44,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:44,029 INFO L87 Difference]: Start difference. First operand 12263 states and 21092 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:43:46,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:46,502 INFO L93 Difference]: Finished difference Result 29482 states and 51252 transitions. [2022-12-13 16:43:46,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:43:46,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 163 [2022-12-13 16:43:46,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:46,549 INFO L225 Difference]: With dead ends: 29482 [2022-12-13 16:43:46,549 INFO L226 Difference]: Without dead ends: 19332 [2022-12-13 16:43:46,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:46,569 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1319 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:46,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 971 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 16:43:46,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19332 states. [2022-12-13 16:43:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19332 to 19216. [2022-12-13 16:43:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19216 states, 15918 states have (on average 1.6228797587636639) internal successors, (25833), 15926 states have internal predecessors, (25833), 3270 states have call successors, (3270), 23 states have call predecessors, (3270), 27 states have return successors, (3609), 3268 states have call predecessors, (3609), 3269 states have call successors, (3609) [2022-12-13 16:43:48,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19216 states to 19216 states and 32712 transitions. [2022-12-13 16:43:48,129 INFO L78 Accepts]: Start accepts. Automaton has 19216 states and 32712 transitions. Word has length 163 [2022-12-13 16:43:48,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:48,129 INFO L495 AbstractCegarLoop]: Abstraction has 19216 states and 32712 transitions. [2022-12-13 16:43:48,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:43:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 19216 states and 32712 transitions. [2022-12-13 16:43:48,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 16:43:48,150 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:48,150 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-12-13 16:43:48,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:43:48,150 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:48,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:48,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2144511553, now seen corresponding path program 1 times [2022-12-13 16:43:48,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:48,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918093692] [2022-12-13 16:43:48,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:48,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:43:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:43:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 16:43:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:43:48,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 16:43:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:43:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 16:43:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:48,229 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:48,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:48,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918093692] [2022-12-13 16:43:48,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918093692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:48,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:48,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:48,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105313624] [2022-12-13 16:43:48,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:48,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:48,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:48,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:48,230 INFO L87 Difference]: Start difference. First operand 19216 states and 32712 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:51,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:51,808 INFO L93 Difference]: Finished difference Result 50914 states and 88170 transitions. [2022-12-13 16:43:51,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:43:51,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 6 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 145 [2022-12-13 16:43:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:51,890 INFO L225 Difference]: With dead ends: 50914 [2022-12-13 16:43:51,890 INFO L226 Difference]: Without dead ends: 34453 [2022-12-13 16:43:51,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:43:51,921 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1321 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:51,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 998 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:43:51,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34453 states. [2022-12-13 16:43:54,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34453 to 34337. [2022-12-13 16:43:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34337 states, 28589 states have (on average 1.6194690265486726) internal successors, (46299), 28597 states have internal predecessors, (46299), 5720 states have call successors, (5720), 23 states have call predecessors, (5720), 27 states have return successors, (6333), 5718 states have call predecessors, (6333), 5719 states have call successors, (6333) [2022-12-13 16:43:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34337 states to 34337 states and 58352 transitions. [2022-12-13 16:43:54,810 INFO L78 Accepts]: Start accepts. Automaton has 34337 states and 58352 transitions. Word has length 145 [2022-12-13 16:43:54,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:54,810 INFO L495 AbstractCegarLoop]: Abstraction has 34337 states and 58352 transitions. [2022-12-13 16:43:54,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:43:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand 34337 states and 58352 transitions. [2022-12-13 16:43:54,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-13 16:43:54,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:54,841 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:43:54,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 16:43:54,841 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:43:54,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash -683397528, now seen corresponding path program 1 times [2022-12-13 16:43:54,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:54,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818805608] [2022-12-13 16:43:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:54,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:43:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:43:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:43:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:43:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:43:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:43:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 16:43:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 16:43:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 16:43:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 16:43:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 16:43:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:43:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 16:43:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:43:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:54,924 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:43:54,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:54,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818805608] [2022-12-13 16:43:54,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818805608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:43:54,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:43:54,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:43:54,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805418111] [2022-12-13 16:43:54,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:43:54,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:43:54,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:54,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:43:54,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:43:54,926 INFO L87 Difference]: Start difference. First operand 34337 states and 58352 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:44:00,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:44:00,536 INFO L93 Difference]: Finished difference Result 93786 states and 161569 transitions. [2022-12-13 16:44:00,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:44:00,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 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 146 [2022-12-13 16:44:00,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:44:00,706 INFO L225 Difference]: With dead ends: 93786 [2022-12-13 16:44:00,706 INFO L226 Difference]: Without dead ends: 63120 [2022-12-13 16:44:00,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:44:00,763 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1294 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:44:00,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 1000 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:44:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63120 states. [2022-12-13 16:44:05,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63120 to 63004. [2022-12-13 16:44:05,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63004 states, 52743 states have (on average 1.6150768822402972) internal successors, (85184), 52751 states have internal predecessors, (85184), 10233 states have call successors, (10233), 23 states have call predecessors, (10233), 27 states have return successors, (11378), 10231 states have call predecessors, (11378), 10232 states have call successors, (11378) [2022-12-13 16:44:05,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63004 states to 63004 states and 106795 transitions. [2022-12-13 16:44:05,726 INFO L78 Accepts]: Start accepts. Automaton has 63004 states and 106795 transitions. Word has length 146 [2022-12-13 16:44:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:44:05,726 INFO L495 AbstractCegarLoop]: Abstraction has 63004 states and 106795 transitions. [2022-12-13 16:44:05,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:44:05,726 INFO L276 IsEmpty]: Start isEmpty. Operand 63004 states and 106795 transitions. [2022-12-13 16:44:05,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 16:44:05,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:44:05,766 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:44:05,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 16:44:05,766 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:44:05,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:44:05,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1670050689, now seen corresponding path program 1 times [2022-12-13 16:44:05,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:44:05,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438308553] [2022-12-13 16:44:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:44:05,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:44:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:44:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:44:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:44:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:44:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:44:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:44:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 16:44:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 16:44:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 16:44:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:44:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 16:44:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 16:44:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 16:44:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:44:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:44:05,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:44:05,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438308553] [2022-12-13 16:44:05,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438308553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:44:05,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:44:05,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:44:05,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585366179] [2022-12-13 16:44:05,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:44:05,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:44:05,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:44:05,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:44:05,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:44:05,938 INFO L87 Difference]: Start difference. First operand 63004 states and 106795 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:44:14,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:44:14,719 INFO L93 Difference]: Finished difference Result 118162 states and 203946 transitions. [2022-12-13 16:44:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:44:14,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 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 147 [2022-12-13 16:44:14,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:44:15,058 INFO L225 Difference]: With dead ends: 118162 [2022-12-13 16:44:15,058 INFO L226 Difference]: Without dead ends: 117993 [2022-12-13 16:44:15,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:44:15,098 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1316 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:44:15,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 995 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:44:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117993 states. [2022-12-13 16:44:24,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117993 to 117877. [2022-12-13 16:44:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117877 states, 99248 states have (on average 1.6096243753022732) internal successors, (159752), 99256 states have internal predecessors, (159752), 18601 states have call successors, (18601), 23 states have call predecessors, (18601), 27 states have return successors, (20792), 18599 states have call predecessors, (20792), 18600 states have call successors, (20792) [2022-12-13 16:44:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117877 states to 117877 states and 199145 transitions. [2022-12-13 16:44:24,457 INFO L78 Accepts]: Start accepts. Automaton has 117877 states and 199145 transitions. Word has length 147 [2022-12-13 16:44:24,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:44:24,457 INFO L495 AbstractCegarLoop]: Abstraction has 117877 states and 199145 transitions. [2022-12-13 16:44:24,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:44:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 117877 states and 199145 transitions. [2022-12-13 16:44:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-13 16:44:24,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:44:24,507 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:44:24,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 16:44:24,508 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:44:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:44:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash -923665645, now seen corresponding path program 1 times [2022-12-13 16:44:24,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:44:24,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133727292] [2022-12-13 16:44:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:44:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:44:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:44:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:44:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:44:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:44:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:44:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:44:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:44:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:44:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:44:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:44:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 16:44:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 16:44:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 16:44:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 16:44:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 16:44:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:44:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:44:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:44:24,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:44:24,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133727292] [2022-12-13 16:44:24,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133727292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:44:24,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:44:24,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 16:44:24,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550149820] [2022-12-13 16:44:24,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:44:24,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:44:24,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:44:24,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:44:24,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:44:24,665 INFO L87 Difference]: Start difference. First operand 117877 states and 199145 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 16:44:42,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:44:42,260 INFO L93 Difference]: Finished difference Result 226885 states and 391220 transitions. [2022-12-13 16:44:42,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 16:44:42,260 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 167 [2022-12-13 16:44:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:44:43,000 INFO L225 Difference]: With dead ends: 226885 [2022-12-13 16:44:43,001 INFO L226 Difference]: Without dead ends: 226724 [2022-12-13 16:44:43,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-12-13 16:44:43,072 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 2728 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 3443 mSolverCounterSat, 1006 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 4449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1006 IncrementalHoareTripleChecker+Valid, 3443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:44:43,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2745 Valid, 1727 Invalid, 4449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1006 Valid, 3443 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 16:44:43,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226724 states. [2022-12-13 16:45:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226724 to 226486. [2022-12-13 16:45:00,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226486 states, 190731 states have (on average 1.6131305346273024) internal successors, (307674), 190687 states have internal predecessors, (307674), 35704 states have call successors, (35704), 45 states have call predecessors, (35704), 50 states have return successors, (38987), 35757 states have call predecessors, (38987), 35702 states have call successors, (38987) [2022-12-13 16:45:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226486 states to 226486 states and 382365 transitions. [2022-12-13 16:45:00,946 INFO L78 Accepts]: Start accepts. Automaton has 226486 states and 382365 transitions. Word has length 167 [2022-12-13 16:45:00,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:45:00,946 INFO L495 AbstractCegarLoop]: Abstraction has 226486 states and 382365 transitions. [2022-12-13 16:45:00,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 16:45:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 226486 states and 382365 transitions. [2022-12-13 16:45:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-13 16:45:01,010 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:45:01,010 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:45:01,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 16:45:01,010 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:45:01,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:45:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1177084375, now seen corresponding path program 1 times [2022-12-13 16:45:01,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:45:01,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856675798] [2022-12-13 16:45:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:45:01,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:45:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:45:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:45:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:45:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:45:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:45:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:45:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:45:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:45:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:45:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:45:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 16:45:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 16:45:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:45:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:45:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,273 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 16:45:01,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:45:01,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856675798] [2022-12-13 16:45:01,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856675798] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:45:01,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371481308] [2022-12-13 16:45:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:45:01,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:45:01,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:45:01,275 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:45:01,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 16:45:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:01,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 16:45:01,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:45:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 16:45:01,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:45:01,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371481308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:45:01,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:45:01,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2022-12-13 16:45:01,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885526045] [2022-12-13 16:45:01,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:45:01,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 16:45:01,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:45:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 16:45:01,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-12-13 16:45:01,899 INFO L87 Difference]: Start difference. First operand 226486 states and 382365 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-12-13 16:45:33,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:45:33,994 INFO L93 Difference]: Finished difference Result 451846 states and 773244 transitions. [2022-12-13 16:45:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:45:33,995 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 148 [2022-12-13 16:45:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:45:35,681 INFO L225 Difference]: With dead ends: 451846 [2022-12-13 16:45:35,681 INFO L226 Difference]: Without dead ends: 451520 [2022-12-13 16:45:35,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=1166, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 16:45:35,839 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 1076 mSDsluCounter, 5316 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 6029 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:45:35,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 6029 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:45:36,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451520 states. [2022-12-13 16:46:12,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451520 to 451484. [2022-12-13 16:46:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451484 states, 380278 states have (on average 1.6134696195940865) internal successors, (613567), 380054 states have internal predecessors, (613567), 71074 states have call successors, (71074), 117 states have call predecessors, (71074), 131 states have return successors, (85943), 71328 states have call predecessors, (85943), 71068 states have call successors, (85943) [2022-12-13 16:46:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451484 states to 451484 states and 770584 transitions. [2022-12-13 16:46:14,633 INFO L78 Accepts]: Start accepts. Automaton has 451484 states and 770584 transitions. Word has length 148 [2022-12-13 16:46:14,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:46:14,633 INFO L495 AbstractCegarLoop]: Abstraction has 451484 states and 770584 transitions. [2022-12-13 16:46:14,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-12-13 16:46:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 451484 states and 770584 transitions. [2022-12-13 16:46:14,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-13 16:46:14,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:46:14,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:14,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 16:46:14,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 16:46:14,966 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:46:14,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:14,967 INFO L85 PathProgramCache]: Analyzing trace with hash 199824716, now seen corresponding path program 1 times [2022-12-13 16:46:14,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:14,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453524576] [2022-12-13 16:46:14,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:46:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:46:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:46:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:46:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:46:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:46:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:46:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:46:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:46:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:46:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 16:46:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 16:46:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 16:46:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:46:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:46:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 16:46:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:46:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:46:15,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:15,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453524576] [2022-12-13 16:46:15,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453524576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:15,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:15,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 16:46:15,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977021588] [2022-12-13 16:46:15,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:15,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 16:46:15,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 16:46:15,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:46:15,179 INFO L87 Difference]: Start difference. First operand 451484 states and 770584 transitions. Second operand has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (20), 8 states have call predecessors, (20), 2 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-12-13 16:46:51,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:46:51,155 INFO L93 Difference]: Finished difference Result 453436 states and 786238 transitions. [2022-12-13 16:46:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 16:46:51,156 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (20), 8 states have call predecessors, (20), 2 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 170 [2022-12-13 16:46:51,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:46:52,861 INFO L225 Difference]: With dead ends: 453436 [2022-12-13 16:46:52,861 INFO L226 Difference]: Without dead ends: 452286 [2022-12-13 16:46:52,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2022-12-13 16:46:52,999 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1772 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 3904 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 4754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 3904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:46:53,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 1833 Invalid, 4754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 3904 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 16:46:53,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452286 states. [2022-12-13 16:47:31,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452286 to 451590. [2022-12-13 16:47:31,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451590 states, 380335 states have (on average 1.6133855679861175) internal successors, (613627), 380122 states have internal predecessors, (613627), 71111 states have call successors, (71111), 123 states have call predecessors, (71111), 143 states have return successors, (86001), 71360 states have call predecessors, (86001), 71093 states have call successors, (86001) [2022-12-13 16:47:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451590 states to 451590 states and 770739 transitions. [2022-12-13 16:47:33,775 INFO L78 Accepts]: Start accepts. Automaton has 451590 states and 770739 transitions. Word has length 170 [2022-12-13 16:47:33,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:47:33,775 INFO L495 AbstractCegarLoop]: Abstraction has 451590 states and 770739 transitions. [2022-12-13 16:47:33,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (20), 8 states have call predecessors, (20), 2 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-12-13 16:47:33,775 INFO L276 IsEmpty]: Start isEmpty. Operand 451590 states and 770739 transitions. [2022-12-13 16:47:33,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 16:47:33,908 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:47:33,908 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:47:33,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 16:47:33,908 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:47:33,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:47:33,909 INFO L85 PathProgramCache]: Analyzing trace with hash 466515512, now seen corresponding path program 1 times [2022-12-13 16:47:33,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:47:33,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793916347] [2022-12-13 16:47:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:47:33,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:47:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:33,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:47:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:47:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:33,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:47:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:33,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:47:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:33,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:47:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:33,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:47:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:47:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:47:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:47:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:47:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:47:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:47:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:47:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:47:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:47:34,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:47:34,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793916347] [2022-12-13 16:47:34,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793916347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:47:34,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:47:34,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:47:34,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492456873] [2022-12-13 16:47:34,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:47:34,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:47:34,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:47:34,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:47:34,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:47:34,019 INFO L87 Difference]: Start difference. First operand 451590 states and 770739 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 16:48:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:48:30,644 INFO L93 Difference]: Finished difference Result 680188 states and 1196120 transitions. [2022-12-13 16:48:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 16:48:30,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2022-12-13 16:48:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:48:33,305 INFO L225 Difference]: With dead ends: 680188 [2022-12-13 16:48:33,305 INFO L226 Difference]: Without dead ends: 679362 [2022-12-13 16:48:33,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2022-12-13 16:48:33,548 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 3195 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 1236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 3790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1236 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:48:33,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3208 Valid, 1445 Invalid, 3790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1236 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 16:48:34,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679362 states. [2022-12-13 16:49:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679362 to 676659. [2022-12-13 16:49:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676659 states, 569918 states have (on average 1.6134724644597995) internal successors, (919547), 569534 states have internal predecessors, (919547), 106507 states have call successors, (106507), 197 states have call predecessors, (106507), 233 states have return successors, (143331), 106955 states have call predecessors, (143331), 106477 states have call successors, (143331) [2022-12-13 16:49:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676659 states to 676659 states and 1169385 transitions. [2022-12-13 16:49:39,403 INFO L78 Accepts]: Start accepts. Automaton has 676659 states and 1169385 transitions. Word has length 149 [2022-12-13 16:49:39,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:49:39,403 INFO L495 AbstractCegarLoop]: Abstraction has 676659 states and 1169385 transitions. [2022-12-13 16:49:39,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 16:49:39,403 INFO L276 IsEmpty]: Start isEmpty. Operand 676659 states and 1169385 transitions. [2022-12-13 16:49:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 16:49:39,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:49:39,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:49:39,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 16:49:39,687 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:49:39,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:49:39,687 INFO L85 PathProgramCache]: Analyzing trace with hash -518489067, now seen corresponding path program 1 times [2022-12-13 16:49:39,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:49:39,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786752524] [2022-12-13 16:49:39,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:49:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:49:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:49:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:49:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:49:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:49:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:49:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:49:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:49:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:49:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:49:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:49:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:49:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:49:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:49:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:49:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:39,953 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 16:49:39,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:49:39,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786752524] [2022-12-13 16:49:39,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786752524] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:49:39,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34067618] [2022-12-13 16:49:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:49:39,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:49:39,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:49:39,955 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:49:39,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 16:49:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:49:40,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 16:49:40,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:49:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 16:49:40,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:49:40,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34067618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:49:40,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:49:40,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2022-12-13 16:49:40,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752287161] [2022-12-13 16:49:40,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:49:40,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:49:40,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:49:40,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:49:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:49:40,311 INFO L87 Difference]: Start difference. First operand 676659 states and 1169385 transitions. Second operand has 11 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2022-12-13 16:50:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:50:31,729 INFO L93 Difference]: Finished difference Result 679626 states and 1173905 transitions. [2022-12-13 16:50:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:50:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 149 [2022-12-13 16:50:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:50:34,418 INFO L225 Difference]: With dead ends: 679626 [2022-12-13 16:50:34,418 INFO L226 Difference]: Without dead ends: 677619 [2022-12-13 16:50:34,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-12-13 16:50:34,634 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 182 mSDsluCounter, 4796 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 5346 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:50:34,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 5346 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:50:35,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677619 states. [2022-12-13 16:51:34,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677619 to 677617. [2022-12-13 16:51:34,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677617 states, 570684 states have (on average 1.6132693399499547) internal successors, (920667), 570338 states have internal predecessors, (920667), 106671 states have call successors, (106671), 207 states have call predecessors, (106671), 261 states have return successors, (143571), 107127 states have call predecessors, (143571), 106641 states have call successors, (143571) [2022-12-13 16:51:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677617 states to 677617 states and 1170909 transitions. [2022-12-13 16:51:37,249 INFO L78 Accepts]: Start accepts. Automaton has 677617 states and 1170909 transitions. Word has length 149 [2022-12-13 16:51:37,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:51:37,250 INFO L495 AbstractCegarLoop]: Abstraction has 677617 states and 1170909 transitions. [2022-12-13 16:51:37,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2022-12-13 16:51:37,250 INFO L276 IsEmpty]: Start isEmpty. Operand 677617 states and 1170909 transitions. [2022-12-13 16:51:37,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 16:51:37,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:51:37,460 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:51:37,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 16:51:37,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 16:51:37,662 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:51:37,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:51:37,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1701836364, now seen corresponding path program 1 times [2022-12-13 16:51:37,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:51:37,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913339640] [2022-12-13 16:51:37,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:51:37,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:51:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:51:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:51:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:51:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:51:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:51:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:51:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:51:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:51:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:51:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:51:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:51:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:51:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:51:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:51:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:37,860 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 16:51:37,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:51:37,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913339640] [2022-12-13 16:51:37,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913339640] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:51:37,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901519966] [2022-12-13 16:51:37,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:51:37,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:51:37,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:51:37,862 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:51:37,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be84c6c-f23b-4db9-be26-eee1c10517c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 16:51:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:51:38,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 16:51:38,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:51:38,183 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 16:51:38,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:51:38,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901519966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:51:38,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:51:38,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2022-12-13 16:51:38,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823449088] [2022-12-13 16:51:38,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:51:38,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:51:38,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:51:38,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:51:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:51:38,185 INFO L87 Difference]: Start difference. First operand 677617 states and 1170909 transitions. Second operand has 11 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-12-13 16:52:30,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:52:30,717 INFO L93 Difference]: Finished difference Result 682110 states and 1177653 transitions. [2022-12-13 16:52:30,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:52:30,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 149 [2022-12-13 16:52:30,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:52:33,438 INFO L225 Difference]: With dead ends: 682110 [2022-12-13 16:52:33,439 INFO L226 Difference]: Without dead ends: 679454 [2022-12-13 16:52:33,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 16:52:33,680 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 1001 mSDsluCounter, 4596 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:52:33,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 5180 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:52:34,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679454 states. [2022-12-13 16:53:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679454 to 678152. [2022-12-13 16:53:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678152 states, 571097 states have (on average 1.613125265935559) internal successors, (921251), 570750 states have internal predecessors, (921251), 106754 states have call successors, (106754), 237 states have call predecessors, (106754), 300 states have return successors, (143702), 107228 states have call predecessors, (143702), 106718 states have call successors, (143702)