./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/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_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/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_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/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 5711b4c0ea669ac051f0ad97dbc3a1a473a1622b7d95c937325001ba5ca1073b --- 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 20:29:14,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:29:14,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:29:14,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:29:14,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:29:14,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:29:14,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:29:14,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:29:14,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:29:14,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:29:14,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:29:14,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:29:14,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:29:14,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:29:14,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:29:14,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:29:14,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:29:14,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:29:14,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:29:14,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:29:14,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:29:14,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:29:14,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:29:14,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:29:14,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:29:14,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:29:14,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:29:14,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:29:14,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:29:14,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:29:14,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:29:14,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:29:14,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:29:14,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:29:14,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:29:14,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:29:14,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:29:14,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:29:14,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:29:14,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:29:14,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:29:14,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:29:14,519 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:29:14,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:29:14,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:29:14,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:29:14,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:29:14,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:29:14,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:29:14,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:29:14,525 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:29:14,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:29:14,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:29:14,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:29:14,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:29:14,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:29:14,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:29:14,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:29:14,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:29:14,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:29:14,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:29:14,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:29:14,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:29:14,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:29:14,528 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:29:14,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:29:14,528 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:29:14,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:29:14,529 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:29:14,529 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_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5711b4c0ea669ac051f0ad97dbc3a1a473a1622b7d95c937325001ba5ca1073b [2022-12-13 20:29:14,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:29:14,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:29:14,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:29:14,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:29:14,733 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:29:14,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c [2022-12-13 20:29:17,272 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:29:17,530 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:29:17,531 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c [2022-12-13 20:29:17,545 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/data/6d754aa47/ac80000bd5a04da08ca8e09ce2ef92d5/FLAG0985111ef [2022-12-13 20:29:17,857 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/data/6d754aa47/ac80000bd5a04da08ca8e09ce2ef92d5 [2022-12-13 20:29:17,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:29:17,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:29:17,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:29:17,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:29:17,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:29:17,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:29:17" (1/1) ... [2022-12-13 20:29:17,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd3c2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:17, skipping insertion in model container [2022-12-13 20:29:17,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:29:17" (1/1) ... [2022-12-13 20:29:17,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:29:17,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:29:18,175 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,177 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,179 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,185 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_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c[32699,32712] [2022-12-13 20:29:18,229 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,235 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,235 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,237 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,246 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,248 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:29:18,304 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:29:18,332 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,333 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,335 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,337 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_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c[32699,32712] [2022-12-13 20:29:18,342 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,344 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,344 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,345 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,348 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,350 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:29:18,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:29:18,390 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:29:18,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18 WrapperNode [2022-12-13 20:29:18,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:29:18,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:29:18,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:29:18,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:29:18,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,448 INFO L138 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 987 [2022-12-13 20:29:18,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:29:18,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:29:18,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:29:18,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:29:18,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:29:18,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:29:18,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:29:18,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:29:18,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (1/1) ... [2022-12-13 20:29:18,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:29:18,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:29:18,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:29:18,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:29:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-13 20:29:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-13 20:29:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 20:29:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 20:29:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-13 20:29:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-13 20:29:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 20:29:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 20:29:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-13 20:29:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-13 20:29:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 20:29:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 20:29:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-13 20:29:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-13 20:29:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 20:29:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 20:29:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 20:29:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 20:29:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 20:29:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 20:29:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-13 20:29:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-13 20:29:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-13 20:29:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-13 20:29:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 20:29:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 20:29:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 20:29:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 20:29:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 20:29:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 20:29:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 20:29:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:29:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-13 20:29:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-13 20:29:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-13 20:29:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-13 20:29:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 20:29:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 20:29:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 20:29:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 20:29:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 20:29:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 20:29:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 20:29:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 20:29:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-13 20:29:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-13 20:29:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 20:29:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 20:29:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-13 20:29:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-13 20:29:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 20:29:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 20:29:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 20:29:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 20:29:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:29:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 20:29:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 20:29:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 20:29:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 20:29:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:29:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:29:18,716 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:29:18,717 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:29:19,335 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:29:19,346 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:29:19,346 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:29:19,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:29:19 BoogieIcfgContainer [2022-12-13 20:29:19,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:29:19,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:29:19,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:29:19,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:29:19,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:29:17" (1/3) ... [2022-12-13 20:29:19,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52406d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:29:19, skipping insertion in model container [2022-12-13 20:29:19,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:18" (2/3) ... [2022-12-13 20:29:19,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52406d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:29:19, skipping insertion in model container [2022-12-13 20:29:19,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:29:19" (3/3) ... [2022-12-13 20:29:19,357 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product32.cil.c [2022-12-13 20:29:19,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:29:19,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:29:19,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:29:19,433 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;@38175fa2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:29:19,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:29:19,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 425 states, 330 states have (on average 1.5515151515151515) internal successors, (512), 335 states have internal predecessors, (512), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 20:29:19,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 20:29:19,458 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:19,459 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] [2022-12-13 20:29:19,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:19,465 INFO L85 PathProgramCache]: Analyzing trace with hash -302497054, now seen corresponding path program 1 times [2022-12-13 20:29:19,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:19,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043721681] [2022-12-13 20:29:19,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:19,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:19,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:19,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:19,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 20:29:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 20:29:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:19,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:29:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:29:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:29:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 20:29:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:29:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 20:29:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:29:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:29:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 20:29:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 20:29:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,053 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 20:29:20,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:20,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043721681] [2022-12-13 20:29:20,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043721681] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:29:20,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879103743] [2022-12-13 20:29:20,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:20,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:20,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:29:20,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:29:20,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:29:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 20:29:20,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:29:20,306 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 20:29:20,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:29:20,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879103743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:20,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:29:20,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-12-13 20:29:20,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807414643] [2022-12-13 20:29:20,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:20,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:29:20,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:20,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:29:20,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:29:20,338 INFO L87 Difference]: Start difference. First operand has 425 states, 330 states have (on average 1.5515151515151515) internal successors, (512), 335 states have internal predecessors, (512), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:20,389 INFO L93 Difference]: Finished difference Result 657 states and 974 transitions. [2022-12-13 20:29:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:29:20,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2022-12-13 20:29:20,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:20,401 INFO L225 Difference]: With dead ends: 657 [2022-12-13 20:29:20,401 INFO L226 Difference]: Without dead ends: 418 [2022-12-13 20:29:20,405 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 20:29:20,408 INFO L413 NwaCegarLoop]: 638 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, 638 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 20:29:20,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:20,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-12-13 20:29:20,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-12-13 20:29:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 324 states have (on average 1.5462962962962963) internal successors, (501), 328 states have internal predecessors, (501), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-13 20:29:20,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 630 transitions. [2022-12-13 20:29:20,472 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 630 transitions. Word has length 116 [2022-12-13 20:29:20,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:20,474 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 630 transitions. [2022-12-13 20:29:20,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 630 transitions. [2022-12-13 20:29:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-13 20:29:20,479 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:20,480 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] [2022-12-13 20:29:20,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:29:20,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:20,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:20,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash -825151926, now seen corresponding path program 1 times [2022-12-13 20:29:20,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:20,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191680914] [2022-12-13 20:29:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:20,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 20:29:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 20:29:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:29:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:29:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 20:29:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:29:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 20:29:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:29:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 20:29:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 20:29:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:29:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 20:29:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:20,910 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 20:29:20,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:20,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191680914] [2022-12-13 20:29:20,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191680914] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:29:20,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231001123] [2022-12-13 20:29:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:20,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:20,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:29:20,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:29:20,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 20:29:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:29:21,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:29:21,159 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 20:29:21,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:29:21,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231001123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:21,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:29:21,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 20:29:21,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328420012] [2022-12-13 20:29:21,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:21,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:29:21,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:21,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:29:21,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:29:21,162 INFO L87 Difference]: Start difference. First operand 418 states and 630 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:21,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:21,192 INFO L93 Difference]: Finished difference Result 647 states and 952 transitions. [2022-12-13 20:29:21,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:29:21,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 117 [2022-12-13 20:29:21,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:21,195 INFO L225 Difference]: With dead ends: 647 [2022-12-13 20:29:21,195 INFO L226 Difference]: Without dead ends: 421 [2022-12-13 20:29:21,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 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 20:29:21,196 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 1 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1254 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 20:29:21,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:21,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-12-13 20:29:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2022-12-13 20:29:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 326 states have (on average 1.5429447852760736) internal successors, (503), 330 states have internal predecessors, (503), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-13 20:29:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 632 transitions. [2022-12-13 20:29:21,214 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 632 transitions. Word has length 117 [2022-12-13 20:29:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:21,215 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 632 transitions. [2022-12-13 20:29:21,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 632 transitions. [2022-12-13 20:29:21,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-13 20:29:21,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:21,217 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] [2022-12-13 20:29:21,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 20:29:21,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:21,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:21,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:21,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1143586185, now seen corresponding path program 1 times [2022-12-13 20:29:21,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:21,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574468648] [2022-12-13 20:29:21,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:21,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 20:29:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 20:29:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:29:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:29:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:29:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 20:29:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:29:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 20:29:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 20:29:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:29:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 20:29:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 20:29:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,779 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 20:29:21,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:21,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574468648] [2022-12-13 20:29:21,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574468648] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:29:21,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182026543] [2022-12-13 20:29:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:21,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:21,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:29:21,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:29:21,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 20:29:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:29:22,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:29:22,029 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 20:29:22,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:29:22,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182026543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:22,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:29:22,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 20:29:22,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040750375] [2022-12-13 20:29:22,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:22,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:29:22,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:22,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:29:22,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:29:22,032 INFO L87 Difference]: Start difference. First operand 420 states and 632 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:22,073 INFO L93 Difference]: Finished difference Result 888 states and 1356 transitions. [2022-12-13 20:29:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:29:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2022-12-13 20:29:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:22,077 INFO L225 Difference]: With dead ends: 888 [2022-12-13 20:29:22,077 INFO L226 Difference]: Without dead ends: 495 [2022-12-13 20:29:22,079 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 20:29:22,080 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 134 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1240 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 20:29:22,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1240 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:22,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-12-13 20:29:22,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 487. [2022-12-13 20:29:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 379 states have (on average 1.562005277044855) internal successors, (592), 383 states have internal predecessors, (592), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2022-12-13 20:29:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 749 transitions. [2022-12-13 20:29:22,111 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 749 transitions. Word has length 126 [2022-12-13 20:29:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:22,111 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 749 transitions. [2022-12-13 20:29:22,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 749 transitions. [2022-12-13 20:29:22,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 20:29:22,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:22,115 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] [2022-12-13 20:29:22,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 20:29:22,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:22,316 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:22,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:22,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1449405, now seen corresponding path program 1 times [2022-12-13 20:29:22,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:22,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497448789] [2022-12-13 20:29:22,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:22,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 20:29:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 20:29:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:29:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 20:29:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:29:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:29:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 20:29:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 20:29:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:29:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 20:29:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 20:29:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 20:29:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,578 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 20:29:22,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:22,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497448789] [2022-12-13 20:29:22,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497448789] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:29:22,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464035077] [2022-12-13 20:29:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:22,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:22,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:29:22,580 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:29:22,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 20:29:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:22,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 20:29:22,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:29:22,856 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 20:29:22,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:29:22,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464035077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:22,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:29:22,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 20:29:22,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65909972] [2022-12-13 20:29:22,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:22,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:29:22,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:29:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:29:22,858 INFO L87 Difference]: Start difference. First operand 487 states and 749 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 20:29:22,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:22,923 INFO L93 Difference]: Finished difference Result 965 states and 1488 transitions. [2022-12-13 20:29:22,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:29:22,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2022-12-13 20:29:22,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:22,926 INFO L225 Difference]: With dead ends: 965 [2022-12-13 20:29:22,926 INFO L226 Difference]: Without dead ends: 489 [2022-12-13 20:29:22,927 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 20:29:22,928 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 152 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2309 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 20:29:22,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2309 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:22,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-12-13 20:29:22,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2022-12-13 20:29:22,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.5605263157894738) internal successors, (593), 385 states have internal predecessors, (593), 79 states have call successors, (79), 28 states have call predecessors, (79), 29 states have return successors, (80), 77 states have call predecessors, (80), 78 states have call successors, (80) [2022-12-13 20:29:22,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 752 transitions. [2022-12-13 20:29:22,944 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 752 transitions. Word has length 127 [2022-12-13 20:29:22,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:22,944 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 752 transitions. [2022-12-13 20:29:22,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 20:29:22,945 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 752 transitions. [2022-12-13 20:29:22,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 20:29:22,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:22,947 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:22,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 20:29:23,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-13 20:29:23,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:23,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:23,148 INFO L85 PathProgramCache]: Analyzing trace with hash -76625628, now seen corresponding path program 1 times [2022-12-13 20:29:23,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:23,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980869816] [2022-12-13 20:29:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:23,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:29:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 20:29:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:29:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:29:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 20:29:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:29:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 20:29:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:29:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:29:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 20:29:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 20:29:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 20:29:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:29:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 20:29:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 20:29:23,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:23,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980869816] [2022-12-13 20:29:23,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980869816] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:29:23,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467302537] [2022-12-13 20:29:23,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:23,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:23,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:29:23,432 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:29:23,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 20:29:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1269 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 20:29:23,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:29:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 20:29:23,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:29:23,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467302537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:23,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:29:23,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 20:29:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658038274] [2022-12-13 20:29:23,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:23,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:29:23,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:23,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:29:23,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 20:29:23,711 INFO L87 Difference]: Start difference. First operand 489 states and 752 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 20:29:23,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:23,776 INFO L93 Difference]: Finished difference Result 967 states and 1493 transitions. [2022-12-13 20:29:23,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:29:23,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2022-12-13 20:29:23,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:23,778 INFO L225 Difference]: With dead ends: 967 [2022-12-13 20:29:23,779 INFO L226 Difference]: Without dead ends: 491 [2022-12-13 20:29:23,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 175 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 20:29:23,780 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 151 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2298 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 20:29:23,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2298 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:23,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-12-13 20:29:23,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2022-12-13 20:29:23,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 387 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2022-12-13 20:29:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 758 transitions. [2022-12-13 20:29:23,803 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 758 transitions. Word has length 147 [2022-12-13 20:29:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:23,803 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 758 transitions. [2022-12-13 20:29:23,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 20:29:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 758 transitions. [2022-12-13 20:29:23,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-12-13 20:29:23,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:23,807 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] [2022-12-13 20:29:23,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 20:29:24,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:24,008 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:24,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:24,008 INFO L85 PathProgramCache]: Analyzing trace with hash 588920322, now seen corresponding path program 1 times [2022-12-13 20:29:24,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:24,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736798047] [2022-12-13 20:29:24,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:24,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 20:29:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 20:29:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 20:29:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:29:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 20:29:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 20:29:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 20:29:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 20:29:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 20:29:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 20:29:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:24,273 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 20:29:24,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:24,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736798047] [2022-12-13 20:29:24,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736798047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:24,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:24,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:29:24,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312483285] [2022-12-13 20:29:24,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:24,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:29:24,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:24,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:29:24,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:29:24,275 INFO L87 Difference]: Start difference. First operand 491 states and 758 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 20:29:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:26,129 INFO L93 Difference]: Finished difference Result 1093 states and 1709 transitions. [2022-12-13 20:29:26,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:29:26,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2022-12-13 20:29:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:26,134 INFO L225 Difference]: With dead ends: 1093 [2022-12-13 20:29:26,134 INFO L226 Difference]: Without dead ends: 625 [2022-12-13 20:29:26,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 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 20:29:26,136 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1565 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:26,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 1192 Invalid, 3357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 20:29:26,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-12-13 20:29:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 491. [2022-12-13 20:29:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 387 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (84), 77 states have call predecessors, (84), 78 states have call successors, (84) [2022-12-13 20:29:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 757 transitions. [2022-12-13 20:29:26,165 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 757 transitions. Word has length 129 [2022-12-13 20:29:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:26,165 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 757 transitions. [2022-12-13 20:29:26,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 20:29:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 757 transitions. [2022-12-13 20:29:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-13 20:29:26,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:26,167 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 20:29:26,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:29:26,167 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:26,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:26,167 INFO L85 PathProgramCache]: Analyzing trace with hash 34869954, now seen corresponding path program 2 times [2022-12-13 20:29:26,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:26,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891926924] [2022-12-13 20:29:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:26,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 20:29:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 20:29:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 20:29:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 20:29:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 20:29:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 20:29:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 20:29:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 20:29:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 20:29:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 20:29:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:26,330 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 20:29:26,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:26,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891926924] [2022-12-13 20:29:26,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891926924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:26,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:26,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:29:26,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624022714] [2022-12-13 20:29:26,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:26,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:29:26,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:26,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:29:26,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:29:26,333 INFO L87 Difference]: Start difference. First operand 491 states and 757 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 20:29:28,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:28,013 INFO L93 Difference]: Finished difference Result 1095 states and 1712 transitions. [2022-12-13 20:29:28,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:29:28,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2022-12-13 20:29:28,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:28,016 INFO L225 Difference]: With dead ends: 1095 [2022-12-13 20:29:28,016 INFO L226 Difference]: Without dead ends: 627 [2022-12-13 20:29:28,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 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 20:29:28,019 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1563 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 3349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:28,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 1191 Invalid, 3349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 20:29:28,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-12-13 20:29:28,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 493. [2022-12-13 20:29:28,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 382 states have (on average 1.557591623036649) internal successors, (595), 389 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (86), 77 states have call predecessors, (86), 78 states have call successors, (86) [2022-12-13 20:29:28,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 760 transitions. [2022-12-13 20:29:28,048 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 760 transitions. Word has length 130 [2022-12-13 20:29:28,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:28,049 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 760 transitions. [2022-12-13 20:29:28,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 20:29:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 760 transitions. [2022-12-13 20:29:28,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-13 20:29:28,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:28,051 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:28,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:29:28,051 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:28,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2146944700, now seen corresponding path program 1 times [2022-12-13 20:29:28,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:28,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352200268] [2022-12-13 20:29:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:28,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:29:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:29:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 20:29:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:29:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 20:29:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 20:29:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:29:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 20:29:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 20:29:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 20:29:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 20:29:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 20:29:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 20:29:28,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:28,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352200268] [2022-12-13 20:29:28,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352200268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:28,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:28,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:29:28,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509288231] [2022-12-13 20:29:28,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:28,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:29:28,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:28,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:29:28,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:29:28,256 INFO L87 Difference]: Start difference. First operand 493 states and 760 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 20:29:30,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:30,493 INFO L93 Difference]: Finished difference Result 1093 states and 1707 transitions. [2022-12-13 20:29:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:29:30,494 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 150 [2022-12-13 20:29:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:30,496 INFO L225 Difference]: With dead ends: 1093 [2022-12-13 20:29:30,496 INFO L226 Difference]: Without dead ends: 627 [2022-12-13 20:29:30,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 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 20:29:30,497 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1714 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4680 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 5283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 4680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:30,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 1555 Invalid, 5283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 4680 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 20:29:30,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-12-13 20:29:30,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 493. [2022-12-13 20:29:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 382 states have (on average 1.557591623036649) internal successors, (595), 389 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2022-12-13 20:29:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 759 transitions. [2022-12-13 20:29:30,524 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 759 transitions. Word has length 150 [2022-12-13 20:29:30,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:30,525 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 759 transitions. [2022-12-13 20:29:30,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 20:29:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 759 transitions. [2022-12-13 20:29:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 20:29:30,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:30,526 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 20:29:30,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:29:30,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:30,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:30,527 INFO L85 PathProgramCache]: Analyzing trace with hash 581688158, now seen corresponding path program 1 times [2022-12-13 20:29:30,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:30,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693311896] [2022-12-13 20:29:30,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:30,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:29:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 20:29:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 20:29:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 20:29:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 20:29:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 20:29:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 20:29:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 20:29:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:29:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:30,685 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 20:29:30,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:30,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693311896] [2022-12-13 20:29:30,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693311896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:30,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:30,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:29:30,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930475531] [2022-12-13 20:29:30,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:30,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:29:30,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:30,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:29:30,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:29:30,688 INFO L87 Difference]: Start difference. First operand 493 states and 759 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-12-13 20:29:32,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:32,690 INFO L93 Difference]: Finished difference Result 1095 states and 1713 transitions. [2022-12-13 20:29:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:29:32,691 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 132 [2022-12-13 20:29:32,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:32,694 INFO L225 Difference]: With dead ends: 1095 [2022-12-13 20:29:32,694 INFO L226 Difference]: Without dead ends: 629 [2022-12-13 20:29:32,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 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 20:29:32,695 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1707 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4730 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 5324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 4730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:32,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 1556 Invalid, 5324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 4730 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 20:29:32,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-12-13 20:29:32,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 495. [2022-12-13 20:29:32,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 383 states have (on average 1.556135770234987) internal successors, (596), 391 states have internal predecessors, (596), 79 states have call successors, (79), 28 states have call predecessors, (79), 32 states have return successors, (90), 77 states have call predecessors, (90), 78 states have call successors, (90) [2022-12-13 20:29:32,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 765 transitions. [2022-12-13 20:29:32,724 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 765 transitions. Word has length 132 [2022-12-13 20:29:32,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:32,725 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 765 transitions. [2022-12-13 20:29:32,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-12-13 20:29:32,725 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 765 transitions. [2022-12-13 20:29:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 20:29:32,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:32,726 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:32,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:29:32,727 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:32,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:32,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1324371639, now seen corresponding path program 1 times [2022-12-13 20:29:32,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:32,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402044427] [2022-12-13 20:29:32,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:32,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:29:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:29:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 20:29:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 20:29:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 20:29:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 20:29:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 20:29:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 20:29:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 20:29:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:29:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 20:29:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 20:29:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 20:29:32,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:32,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402044427] [2022-12-13 20:29:32,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402044427] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:29:32,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829689204] [2022-12-13 20:29:32,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:32,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:32,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:29:32,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:29:32,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 20:29:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:33,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:29:33,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:29:33,168 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 20:29:33,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:29:33,240 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 20:29:33,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829689204] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:29:33,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:29:33,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-12-13 20:29:33,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708782429] [2022-12-13 20:29:33,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:29:33,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 20:29:33,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:33,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 20:29:33,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-13 20:29:33,243 INFO L87 Difference]: Start difference. First operand 495 states and 765 transitions. Second operand has 15 states, 14 states have (on average 11.142857142857142) internal successors, (156), 11 states have internal predecessors, (156), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2022-12-13 20:29:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:36,269 INFO L93 Difference]: Finished difference Result 1954 states and 3271 transitions. [2022-12-13 20:29:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:29:36,270 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.142857142857142) internal successors, (156), 11 states have internal predecessors, (156), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 152 [2022-12-13 20:29:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:36,274 INFO L225 Difference]: With dead ends: 1954 [2022-12-13 20:29:36,274 INFO L226 Difference]: Without dead ends: 1490 [2022-12-13 20:29:36,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-12-13 20:29:36,276 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 3669 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 6248 mSolverCounterSat, 1415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 7663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1415 IncrementalHoareTripleChecker+Valid, 6248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:36,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3671 Valid, 3665 Invalid, 7663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1415 Valid, 6248 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 20:29:36,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-12-13 20:29:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 913. [2022-12-13 20:29:36,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 722 states have (on average 1.6094182825484764) internal successors, (1162), 730 states have internal predecessors, (1162), 158 states have call successors, (158), 28 states have call predecessors, (158), 32 states have return successors, (179), 156 states have call predecessors, (179), 157 states have call successors, (179) [2022-12-13 20:29:36,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1499 transitions. [2022-12-13 20:29:36,350 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1499 transitions. Word has length 152 [2022-12-13 20:29:36,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:36,351 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1499 transitions. [2022-12-13 20:29:36,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.142857142857142) internal successors, (156), 11 states have internal predecessors, (156), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2022-12-13 20:29:36,351 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1499 transitions. [2022-12-13 20:29:36,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 20:29:36,354 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:36,354 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:36,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 20:29:36,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7f7b6-9c9a-42b9-9ffa-392f29afe4e2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:29:36,555 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:36,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:36,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1355936204, now seen corresponding path program 1 times [2022-12-13 20:29:36,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:36,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828627364] [2022-12-13 20:29:36,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:36,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:29:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:29:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:29:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 20:29:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 20:29:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 20:29:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:29:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 20:29:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 20:29:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 20:29:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 20:29:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 20:29:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 20:29:36,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:36,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828627364] [2022-12-13 20:29:36,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828627364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:36,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:36,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:29:36,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71049315] [2022-12-13 20:29:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:36,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:36,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:36,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:36,632 INFO L87 Difference]: Start difference. First operand 913 states and 1499 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:29:38,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:38,128 INFO L93 Difference]: Finished difference Result 2280 states and 3839 transitions. [2022-12-13 20:29:38,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:38,128 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2022-12-13 20:29:38,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:38,132 INFO L225 Difference]: With dead ends: 2280 [2022-12-13 20:29:38,132 INFO L226 Difference]: Without dead ends: 1445 [2022-12-13 20:29:38,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 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 20:29:38,134 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1543 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:38,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 1041 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 20:29:38,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2022-12-13 20:29:38,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1303. [2022-12-13 20:29:38,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1033 states have (on average 1.628267182962246) internal successors, (1682), 1041 states have internal predecessors, (1682), 237 states have call successors, (237), 28 states have call predecessors, (237), 32 states have return successors, (268), 235 states have call predecessors, (268), 236 states have call successors, (268) [2022-12-13 20:29:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2187 transitions. [2022-12-13 20:29:38,225 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 2187 transitions. Word has length 155 [2022-12-13 20:29:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:38,225 INFO L495 AbstractCegarLoop]: Abstraction has 1303 states and 2187 transitions. [2022-12-13 20:29:38,225 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:29:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 2187 transitions. [2022-12-13 20:29:38,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 20:29:38,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:38,229 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] [2022-12-13 20:29:38,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:29:38,230 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:38,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:38,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1324847824, now seen corresponding path program 1 times [2022-12-13 20:29:38,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:38,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336393237] [2022-12-13 20:29:38,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 20:29:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 20:29:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 20:29:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 20:29:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:29:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:29:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 20:29:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 20:29:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 20:29:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:38,317 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 20:29:38,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:38,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336393237] [2022-12-13 20:29:38,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336393237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:38,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:38,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:29:38,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289817431] [2022-12-13 20:29:38,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:38,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:38,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:38,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:38,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:38,319 INFO L87 Difference]: Start difference. First operand 1303 states and 2187 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:39,681 INFO L93 Difference]: Finished difference Result 3254 states and 5548 transitions. [2022-12-13 20:29:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:39,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2022-12-13 20:29:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:39,688 INFO L225 Difference]: With dead ends: 3254 [2022-12-13 20:29:39,688 INFO L226 Difference]: Without dead ends: 2082 [2022-12-13 20:29:39,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 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 20:29:39,690 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1541 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:39,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 1024 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 20:29:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2022-12-13 20:29:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1940. [2022-12-13 20:29:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1551 states have (on average 1.6376531270148291) internal successors, (2540), 1559 states have internal predecessors, (2540), 356 states have call successors, (356), 28 states have call predecessors, (356), 32 states have return successors, (387), 354 states have call predecessors, (387), 355 states have call successors, (387) [2022-12-13 20:29:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 3283 transitions. [2022-12-13 20:29:39,824 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 3283 transitions. Word has length 137 [2022-12-13 20:29:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:39,824 INFO L495 AbstractCegarLoop]: Abstraction has 1940 states and 3283 transitions. [2022-12-13 20:29:39,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 3283 transitions. [2022-12-13 20:29:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-13 20:29:39,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:39,830 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 20:29:39,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:29:39,830 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:39,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:39,830 INFO L85 PathProgramCache]: Analyzing trace with hash -199308063, now seen corresponding path program 1 times [2022-12-13 20:29:39,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:39,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214265700] [2022-12-13 20:29:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:39,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:29:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:29:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 20:29:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 20:29:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 20:29:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 20:29:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 20:29:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 20:29:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 20:29:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:39,915 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 20:29:39,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:39,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214265700] [2022-12-13 20:29:39,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214265700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:39,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:39,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:29:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824074957] [2022-12-13 20:29:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:39,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:39,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:39,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:39,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:39,917 INFO L87 Difference]: Start difference. First operand 1940 states and 3283 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:41,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:41,506 INFO L93 Difference]: Finished difference Result 4734 states and 8159 transitions. [2022-12-13 20:29:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:41,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2022-12-13 20:29:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:41,522 INFO L225 Difference]: With dead ends: 4734 [2022-12-13 20:29:41,523 INFO L226 Difference]: Without dead ends: 3060 [2022-12-13 20:29:41,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 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 20:29:41,528 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1539 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:41,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 994 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 20:29:41,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2022-12-13 20:29:41,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2918. [2022-12-13 20:29:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2367 states have (on average 1.6451204055766793) internal successors, (3894), 2375 states have internal predecessors, (3894), 518 states have call successors, (518), 28 states have call predecessors, (518), 32 states have return successors, (565), 516 states have call predecessors, (565), 517 states have call successors, (565) [2022-12-13 20:29:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4977 transitions. [2022-12-13 20:29:41,812 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4977 transitions. Word has length 138 [2022-12-13 20:29:41,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:41,813 INFO L495 AbstractCegarLoop]: Abstraction has 2918 states and 4977 transitions. [2022-12-13 20:29:41,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:41,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4977 transitions. [2022-12-13 20:29:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-13 20:29:41,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:41,821 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 20:29:41,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 20:29:41,821 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:41,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:41,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1628759281, now seen corresponding path program 1 times [2022-12-13 20:29:41,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:41,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178360] [2022-12-13 20:29:41,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:41,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 20:29:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 20:29:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:29:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 20:29:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 20:29:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 20:29:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 20:29:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:29:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:29:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:41,903 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 20:29:41,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:41,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178360] [2022-12-13 20:29:41,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:41,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:41,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:29:41,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961356178] [2022-12-13 20:29:41,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:41,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:41,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:41,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:41,904 INFO L87 Difference]: Start difference. First operand 2918 states and 4977 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:43,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:43,675 INFO L93 Difference]: Finished difference Result 7073 states and 12294 transitions. [2022-12-13 20:29:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:43,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2022-12-13 20:29:43,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:43,701 INFO L225 Difference]: With dead ends: 7073 [2022-12-13 20:29:43,701 INFO L226 Difference]: Without dead ends: 4640 [2022-12-13 20:29:43,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 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 20:29:43,708 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1538 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:43,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 992 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [615 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 20:29:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4640 states. [2022-12-13 20:29:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4640 to 4498. [2022-12-13 20:29:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 3702 states have (on average 1.650459211237169) internal successors, (6110), 3710 states have internal predecessors, (6110), 763 states have call successors, (763), 28 states have call predecessors, (763), 32 states have return successors, (836), 761 states have call predecessors, (836), 762 states have call successors, (836) [2022-12-13 20:29:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 7709 transitions. [2022-12-13 20:29:44,043 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 7709 transitions. Word has length 139 [2022-12-13 20:29:44,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:44,043 INFO L495 AbstractCegarLoop]: Abstraction has 4498 states and 7709 transitions. [2022-12-13 20:29:44,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:44,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 7709 transitions. [2022-12-13 20:29:44,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 20:29:44,052 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:44,052 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:44,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:29:44,052 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:44,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1275533250, now seen corresponding path program 1 times [2022-12-13 20:29:44,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:44,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631823503] [2022-12-13 20:29:44,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:44,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 20:29:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 20:29:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 20:29:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:29:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 20:29:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 20:29:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 20:29:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 20:29:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 20:29:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 20:29:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 20:29:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 20:29:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 20:29:44,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:44,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631823503] [2022-12-13 20:29:44,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631823503] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:44,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:44,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:29:44,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504953562] [2022-12-13 20:29:44,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:44,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:44,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:44,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:44,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:44,137 INFO L87 Difference]: Start difference. First operand 4498 states and 7709 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:29:45,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:45,972 INFO L93 Difference]: Finished difference Result 11244 states and 19623 transitions. [2022-12-13 20:29:45,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:45,973 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2022-12-13 20:29:45,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:45,994 INFO L225 Difference]: With dead ends: 11244 [2022-12-13 20:29:45,994 INFO L226 Difference]: Without dead ends: 7483 [2022-12-13 20:29:46,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 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 20:29:46,001 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1534 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:46,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 1026 Invalid, 2291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 20:29:46,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7483 states. [2022-12-13 20:29:46,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 7341. [2022-12-13 20:29:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7341 states, 6052 states have (on average 1.647224058162591) internal successors, (9969), 6060 states have internal predecessors, (9969), 1256 states have call successors, (1256), 28 states have call predecessors, (1256), 32 states have return successors, (1373), 1254 states have call predecessors, (1373), 1255 states have call successors, (1373) [2022-12-13 20:29:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7341 states to 7341 states and 12598 transitions. [2022-12-13 20:29:46,699 INFO L78 Accepts]: Start accepts. Automaton has 7341 states and 12598 transitions. Word has length 159 [2022-12-13 20:29:46,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:46,699 INFO L495 AbstractCegarLoop]: Abstraction has 7341 states and 12598 transitions. [2022-12-13 20:29:46,700 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:29:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7341 states and 12598 transitions. [2022-12-13 20:29:46,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 20:29:46,712 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:46,712 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 20:29:46,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 20:29:46,712 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:46,712 INFO L85 PathProgramCache]: Analyzing trace with hash -620845333, now seen corresponding path program 1 times [2022-12-13 20:29:46,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:46,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060057377] [2022-12-13 20:29:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:46,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:29:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 20:29:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 20:29:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 20:29:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 20:29:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 20:29:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 20:29:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 20:29:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 20:29:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,791 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 20:29:46,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:46,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060057377] [2022-12-13 20:29:46,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060057377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:46,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:46,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:29:46,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739467949] [2022-12-13 20:29:46,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:46,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:46,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:46,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:46,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:46,792 INFO L87 Difference]: Start difference. First operand 7341 states and 12598 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:48,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:48,932 INFO L93 Difference]: Finished difference Result 18664 states and 32587 transitions. [2022-12-13 20:29:48,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:48,932 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2022-12-13 20:29:48,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:48,972 INFO L225 Difference]: With dead ends: 18664 [2022-12-13 20:29:48,972 INFO L226 Difference]: Without dead ends: 12462 [2022-12-13 20:29:48,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 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 20:29:48,982 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1535 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 2251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:48,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 1031 Invalid, 2251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 20:29:48,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12462 states. [2022-12-13 20:29:50,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12462 to 12320. [2022-12-13 20:29:50,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12320 states, 10209 states have (on average 1.6475658732490939) internal successors, (16820), 10217 states have internal predecessors, (16820), 2078 states have call successors, (2078), 28 states have call predecessors, (2078), 32 states have return successors, (2273), 2076 states have call predecessors, (2273), 2077 states have call successors, (2273) [2022-12-13 20:29:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12320 states to 12320 states and 21171 transitions. [2022-12-13 20:29:50,069 INFO L78 Accepts]: Start accepts. Automaton has 12320 states and 21171 transitions. Word has length 141 [2022-12-13 20:29:50,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:50,070 INFO L495 AbstractCegarLoop]: Abstraction has 12320 states and 21171 transitions. [2022-12-13 20:29:50,070 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:50,070 INFO L276 IsEmpty]: Start isEmpty. Operand 12320 states and 21171 transitions. [2022-12-13 20:29:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-13 20:29:50,088 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:50,088 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 20:29:50,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 20:29:50,088 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:50,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:50,088 INFO L85 PathProgramCache]: Analyzing trace with hash -953878621, now seen corresponding path program 1 times [2022-12-13 20:29:50,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:50,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969917521] [2022-12-13 20:29:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:50,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 20:29:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 20:29:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 20:29:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:29:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 20:29:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:29:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 20:29:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 20:29:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 20:29:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:50,152 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 20:29:50,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:50,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969917521] [2022-12-13 20:29:50,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969917521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:50,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:50,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:29:50,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348820130] [2022-12-13 20:29:50,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:50,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:50,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:50,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:50,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:50,154 INFO L87 Difference]: Start difference. First operand 12320 states and 21171 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:52,687 INFO L93 Difference]: Finished difference Result 29622 states and 51447 transitions. [2022-12-13 20:29:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:52,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2022-12-13 20:29:52,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:52,735 INFO L225 Difference]: With dead ends: 29622 [2022-12-13 20:29:52,735 INFO L226 Difference]: Without dead ends: 19415 [2022-12-13 20:29:52,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 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 20:29:52,753 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1535 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:52,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 973 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 20:29:52,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19415 states. [2022-12-13 20:29:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19415 to 19273. [2022-12-13 20:29:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19273 states, 15959 states have (on average 1.6222820978758068) internal successors, (25890), 15967 states have internal predecessors, (25890), 3281 states have call successors, (3281), 28 states have call predecessors, (3281), 32 states have return successors, (3620), 3279 states have call predecessors, (3620), 3280 states have call successors, (3620) [2022-12-13 20:29:54,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19273 states to 19273 states and 32791 transitions. [2022-12-13 20:29:54,298 INFO L78 Accepts]: Start accepts. Automaton has 19273 states and 32791 transitions. Word has length 142 [2022-12-13 20:29:54,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:54,298 INFO L495 AbstractCegarLoop]: Abstraction has 19273 states and 32791 transitions. [2022-12-13 20:29:54,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:54,299 INFO L276 IsEmpty]: Start isEmpty. Operand 19273 states and 32791 transitions. [2022-12-13 20:29:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 20:29:54,317 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:54,317 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 20:29:54,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 20:29:54,318 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:54,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:54,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1305006806, now seen corresponding path program 1 times [2022-12-13 20:29:54,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:54,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336207900] [2022-12-13 20:29:54,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:54,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:29:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:29:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:29:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:29:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:29:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:29:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:29:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:29:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 20:29:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 20:29:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:29:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 20:29:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 20:29:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 20:29:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 20:29:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,390 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 20:29:54,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:54,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336207900] [2022-12-13 20:29:54,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336207900] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:54,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:54,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:29:54,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605877060] [2022-12-13 20:29:54,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:54,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:54,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:54,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:54,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:54,392 INFO L87 Difference]: Start difference. First operand 19273 states and 32791 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:29:58,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:58,521 INFO L93 Difference]: Finished difference Result 51054 states and 88365 transitions. [2022-12-13 20:29:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:58,521 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2022-12-13 20:29:58,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:58,606 INFO L225 Difference]: With dead ends: 51054 [2022-12-13 20:29:58,607 INFO L226 Difference]: Without dead ends: 34536 [2022-12-13 20:29:58,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 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 20:29:58,633 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1529 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:58,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 996 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 20:29:58,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34536 states. [2022-12-13 20:30:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34536 to 34394. [2022-12-13 20:30:01,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34394 states, 28630 states have (on average 1.61914076143905) internal successors, (46356), 28638 states have internal predecessors, (46356), 5731 states have call successors, (5731), 28 states have call predecessors, (5731), 32 states have return successors, (6344), 5729 states have call predecessors, (6344), 5730 states have call successors, (6344) [2022-12-13 20:30:01,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34394 states to 34394 states and 58431 transitions. [2022-12-13 20:30:01,420 INFO L78 Accepts]: Start accepts. Automaton has 34394 states and 58431 transitions. Word has length 143 [2022-12-13 20:30:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:01,420 INFO L495 AbstractCegarLoop]: Abstraction has 34394 states and 58431 transitions. [2022-12-13 20:30:01,420 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:30:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 34394 states and 58431 transitions. [2022-12-13 20:30:01,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 20:30:01,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:01,446 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:01,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 20:30:01,446 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:01,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:01,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1086875802, now seen corresponding path program 1 times [2022-12-13 20:30:01,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:01,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397010556] [2022-12-13 20:30:01,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:30:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:30:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:30:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:30:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:30:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:30:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 20:30:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 20:30:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 20:30:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 20:30:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:30:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 20:30:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 20:30:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 20:30:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:30:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 20:30:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 20:30:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 20:30:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 20:30:01,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:01,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397010556] [2022-12-13 20:30:01,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397010556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:01,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:01,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:30:01,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081110467] [2022-12-13 20:30:01,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:01,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:30:01,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:01,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:30:01,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:30:01,524 INFO L87 Difference]: Start difference. First operand 34394 states and 58431 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:30:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:30:07,391 INFO L93 Difference]: Finished difference Result 93926 states and 161764 transitions. [2022-12-13 20:30:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:30:07,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2022-12-13 20:30:07,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:30:07,542 INFO L225 Difference]: With dead ends: 93926 [2022-12-13 20:30:07,542 INFO L226 Difference]: Without dead ends: 63203 [2022-12-13 20:30:07,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 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 20:30:07,590 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1530 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:30:07,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1549 Valid, 1038 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 1638 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 20:30:07,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63203 states. [2022-12-13 20:30:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63203 to 63061. [2022-12-13 20:30:12,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63061 states, 52784 states have (on average 1.6149022431039708) internal successors, (85241), 52792 states have internal predecessors, (85241), 10244 states have call successors, (10244), 28 states have call predecessors, (10244), 32 states have return successors, (11389), 10242 states have call predecessors, (11389), 10243 states have call successors, (11389) [2022-12-13 20:30:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63061 states to 63061 states and 106874 transitions. [2022-12-13 20:30:12,428 INFO L78 Accepts]: Start accepts. Automaton has 63061 states and 106874 transitions. Word has length 163 [2022-12-13 20:30:12,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:12,428 INFO L495 AbstractCegarLoop]: Abstraction has 63061 states and 106874 transitions. [2022-12-13 20:30:12,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:30:12,428 INFO L276 IsEmpty]: Start isEmpty. Operand 63061 states and 106874 transitions. [2022-12-13 20:30:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-13 20:30:12,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:12,461 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:12,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 20:30:12,461 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:12,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:12,461 INFO L85 PathProgramCache]: Analyzing trace with hash 420907641, now seen corresponding path program 1 times [2022-12-13 20:30:12,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:12,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117072822] [2022-12-13 20:30:12,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:12,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:30:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:30:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:30:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:30:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:30:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:30:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 20:30:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:30:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 20:30:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 20:30:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 20:30:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 20:30:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 20:30:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 20:30:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:30:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 20:30:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 20:30:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 20:30:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 20:30:12,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:12,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117072822] [2022-12-13 20:30:12,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117072822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:12,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:12,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:30:12,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051986262] [2022-12-13 20:30:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:12,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:30:12,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:30:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:30:12,544 INFO L87 Difference]: Start difference. First operand 63061 states and 106874 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:30:22,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:30:22,022 INFO L93 Difference]: Finished difference Result 118302 states and 204141 transitions. [2022-12-13 20:30:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:30:22,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2022-12-13 20:30:22,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:30:22,343 INFO L225 Difference]: With dead ends: 118302 [2022-12-13 20:30:22,343 INFO L226 Difference]: Without dead ends: 118076 [2022-12-13 20:30:22,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 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 20:30:22,383 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1526 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:30:22,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 996 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 20:30:22,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118076 states. [2022-12-13 20:30:31,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118076 to 117934. [2022-12-13 20:30:31,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117934 states, 99289 states have (on average 1.6095337852128635) internal successors, (159809), 99297 states have internal predecessors, (159809), 18612 states have call successors, (18612), 28 states have call predecessors, (18612), 32 states have return successors, (20803), 18610 states have call predecessors, (20803), 18611 states have call successors, (20803) [2022-12-13 20:30:31,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117934 states to 117934 states and 199224 transitions. [2022-12-13 20:30:31,528 INFO L78 Accepts]: Start accepts. Automaton has 117934 states and 199224 transitions. Word has length 164 [2022-12-13 20:30:31,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:31,528 INFO L495 AbstractCegarLoop]: Abstraction has 117934 states and 199224 transitions. [2022-12-13 20:30:31,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:30:31,528 INFO L276 IsEmpty]: Start isEmpty. Operand 117934 states and 199224 transitions. [2022-12-13 20:30:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-12-13 20:30:31,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:31,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:31,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 20:30:31,570 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:31,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2113227335, now seen corresponding path program 1 times [2022-12-13 20:30:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:31,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016296717] [2022-12-13 20:30:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:30:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:30:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:30:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:30:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:30:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:30:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 20:30:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 20:30:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 20:30:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:30:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 20:30:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 20:30:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 20:30:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 20:30:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 20:30:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 20:30:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 20:30:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 20:30:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 20:30:31,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:31,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016296717] [2022-12-13 20:30:31,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016296717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:31,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:31,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:30:31,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650736058] [2022-12-13 20:30:31,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:31,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:30:31,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:31,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:30:31,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:30:31,720 INFO L87 Difference]: Start difference. First operand 117934 states and 199224 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:30:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:30:49,345 INFO L93 Difference]: Finished difference Result 227116 states and 391539 transitions. [2022-12-13 20:30:49,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 20:30:49,345 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2022-12-13 20:30:49,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:30:50,026 INFO L225 Difference]: With dead ends: 227116 [2022-12-13 20:30:50,026 INFO L226 Difference]: Without dead ends: 226898 [2022-12-13 20:30:50,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-12-13 20:30:50,090 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 3221 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 4167 mSolverCounterSat, 1235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 5402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1235 IncrementalHoareTripleChecker+Valid, 4167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:30:50,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 1725 Invalid, 5402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1235 Valid, 4167 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 20:30:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226898 states. [2022-12-13 20:31:06,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226898 to 226600. [2022-12-13 20:31:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226600 states, 190813 states have (on average 1.613034751301012) internal successors, (307788), 190769 states have internal predecessors, (307788), 35726 states have call successors, (35726), 55 states have call predecessors, (35726), 60 states have return successors, (39009), 35779 states have call predecessors, (39009), 35724 states have call successors, (39009) [2022-12-13 20:31:07,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226600 states to 226600 states and 382523 transitions. [2022-12-13 20:31:07,762 INFO L78 Accepts]: Start accepts. Automaton has 226600 states and 382523 transitions. Word has length 165 [2022-12-13 20:31:07,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:31:07,762 INFO L495 AbstractCegarLoop]: Abstraction has 226600 states and 382523 transitions. [2022-12-13 20:31:07,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 20:31:07,763 INFO L276 IsEmpty]: Start isEmpty. Operand 226600 states and 382523 transitions. [2022-12-13 20:31:07,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-13 20:31:07,813 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:31:07,813 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 20:31:07,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 20:31:07,813 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:31:07,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:07,814 INFO L85 PathProgramCache]: Analyzing trace with hash 159805290, now seen corresponding path program 1 times [2022-12-13 20:31:07,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:07,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240806130] [2022-12-13 20:31:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:07,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:31:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:31:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:31:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:31:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:31:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:31:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 20:31:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 20:31:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 20:31:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:31:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 20:31:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 20:31:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 20:31:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:31:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 20:31:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:08,231 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 20:31:08,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:08,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240806130] [2022-12-13 20:31:08,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240806130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:08,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:08,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-13 20:31:08,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926356643] [2022-12-13 20:31:08,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:08,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 20:31:08,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:08,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 20:31:08,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:31:08,234 INFO L87 Difference]: Start difference. First operand 226600 states and 382523 transitions. Second operand has 18 states, 16 states have (on average 6.0625) internal successors, (97), 12 states have internal predecessors, (97), 6 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-13 20:31:45,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:31:45,883 INFO L93 Difference]: Finished difference Result 453306 states and 788061 transitions. [2022-12-13 20:31:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-13 20:31:45,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.0625) internal successors, (97), 12 states have internal predecessors, (97), 6 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 146 [2022-12-13 20:31:45,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:31:47,553 INFO L225 Difference]: With dead ends: 453306 [2022-12-13 20:31:47,553 INFO L226 Difference]: Without dead ends: 452866 [2022-12-13 20:31:47,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1280 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=872, Invalid=3820, Unknown=0, NotChecked=0, Total=4692 [2022-12-13 20:31:47,695 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 5579 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 12400 mSolverCounterSat, 2820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5579 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 15220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2820 IncrementalHoareTripleChecker+Valid, 12400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:31:47,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5579 Valid, 3499 Invalid, 15220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2820 Valid, 12400 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-12-13 20:31:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452866 states. [2022-12-13 20:32:24,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452866 to 451896. [2022-12-13 20:32:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451896 states, 380558 states have (on average 1.6132389806547227) internal successors, (613931), 380338 states have internal predecessors, (613931), 71168 states have call successors, (71168), 147 states have call predecessors, (71168), 169 states have return successors, (86067), 71426 states have call predecessors, (86067), 71162 states have call successors, (86067) [2022-12-13 20:32:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451896 states to 451896 states and 771166 transitions. [2022-12-13 20:32:26,637 INFO L78 Accepts]: Start accepts. Automaton has 451896 states and 771166 transitions. Word has length 146 [2022-12-13 20:32:26,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:32:26,637 INFO L495 AbstractCegarLoop]: Abstraction has 451896 states and 771166 transitions. [2022-12-13 20:32:26,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.0625) internal successors, (97), 12 states have internal predecessors, (97), 6 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-13 20:32:26,637 INFO L276 IsEmpty]: Start isEmpty. Operand 451896 states and 771166 transitions. [2022-12-13 20:32:26,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 20:32:26,840 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:32:26,840 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 20:32:26,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 20:32:26,841 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:32:26,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:26,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1153011106, now seen corresponding path program 1 times [2022-12-13 20:32:26,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:26,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935798355] [2022-12-13 20:32:26,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:26,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:26,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:32:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:32:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:32:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:32:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:26,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:32:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:32:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 20:32:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 20:32:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 20:32:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:32:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 20:32:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 20:32:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 20:32:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:32:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 20:32:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:27,055 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 20:32:27,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:27,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935798355] [2022-12-13 20:32:27,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935798355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:27,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:27,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 20:32:27,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602585336] [2022-12-13 20:32:27,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:27,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 20:32:27,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:27,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 20:32:27,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:32:27,056 INFO L87 Difference]: Start difference. First operand 451896 states and 771166 transitions. Second operand has 16 states, 16 states have (on average 6.125) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (18), 8 states have call predecessors, (18), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-13 20:33:04,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:33:04,545 INFO L93 Difference]: Finished difference Result 455836 states and 789970 transitions. [2022-12-13 20:33:04,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 20:33:04,546 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (18), 8 states have call predecessors, (18), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 147 [2022-12-13 20:33:04,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:33:06,193 INFO L225 Difference]: With dead ends: 455836 [2022-12-13 20:33:06,193 INFO L226 Difference]: Without dead ends: 454250 [2022-12-13 20:33:06,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 20:33:06,339 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 2698 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 7211 mSolverCounterSat, 1376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 8587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1376 IncrementalHoareTripleChecker+Valid, 7211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:33:06,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2716 Valid, 2352 Invalid, 8587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1376 Valid, 7211 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-13 20:33:06,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454250 states. [2022-12-13 20:33:44,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454250 to 452710. [2022-12-13 20:33:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452710 states, 381122 states have (on average 1.6128247647734846) internal successors, (614683), 380927 states have internal predecessors, (614683), 71402 states have call successors, (71402), 159 states have call predecessors, (71402), 185 states have return successors, (86356), 71655 states have call predecessors, (86356), 71384 states have call successors, (86356) [2022-12-13 20:33:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452710 states to 452710 states and 772441 transitions. [2022-12-13 20:33:46,599 INFO L78 Accepts]: Start accepts. Automaton has 452710 states and 772441 transitions. Word has length 147 [2022-12-13 20:33:46,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:33:46,600 INFO L495 AbstractCegarLoop]: Abstraction has 452710 states and 772441 transitions. [2022-12-13 20:33:46,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (18), 8 states have call predecessors, (18), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-13 20:33:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand 452710 states and 772441 transitions. [2022-12-13 20:33:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 20:33:46,711 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:33:46,711 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 20:33:46,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 20:33:46,711 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:33:46,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:46,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1257629872, now seen corresponding path program 1 times [2022-12-13 20:33:46,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:46,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642480020] [2022-12-13 20:33:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:46,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:33:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:33:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:33:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:33:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:33:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:33:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 20:33:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 20:33:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 20:33:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:33:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 20:33:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 20:33:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 20:33:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:33:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 20:33:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:46,828 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 20:33:46,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:46,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642480020] [2022-12-13 20:33:46,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642480020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:46,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:46,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:33:46,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888324928] [2022-12-13 20:33:46,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:46,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:33:46,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:46,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:33:46,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:33:46,830 INFO L87 Difference]: Start difference. First operand 452710 states and 772441 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:34:46,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:34:46,368 INFO L93 Difference]: Finished difference Result 686470 states and 1206026 transitions. [2022-12-13 20:34:46,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 20:34:46,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2022-12-13 20:34:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:34:49,042 INFO L225 Difference]: With dead ends: 686470 [2022-12-13 20:34:49,042 INFO L226 Difference]: Without dead ends: 684886 [2022-12-13 20:34:49,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2022-12-13 20:34:49,297 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 3887 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 1709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3900 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1709 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:34:49,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3900 Valid, 1675 Invalid, 6515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1709 Valid, 4806 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-13 20:34:49,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684886 states. [2022-12-13 20:35:51,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684886 to 680790. [2022-12-13 20:35:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680790 states, 572875 states have (on average 1.6122243072223434) internal successors, (923603), 572579 states have internal predecessors, (923603), 107458 states have call successors, (107458), 371 states have call predecessors, (107458), 456 states have return successors, (144612), 107927 states have call predecessors, (144612), 107410 states have call successors, (144612) [2022-12-13 20:35:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680790 states to 680790 states and 1175673 transitions. [2022-12-13 20:35:54,459 INFO L78 Accepts]: Start accepts. Automaton has 680790 states and 1175673 transitions. Word has length 147 [2022-12-13 20:35:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:35:54,460 INFO L495 AbstractCegarLoop]: Abstraction has 680790 states and 1175673 transitions. [2022-12-13 20:35:54,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:35:54,460 INFO L276 IsEmpty]: Start isEmpty. Operand 680790 states and 1175673 transitions. [2022-12-13 20:35:54,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 20:35:54,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:35:54,790 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 20:35:54,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 20:35:54,790 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:35:54,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1950731569, now seen corresponding path program 1 times [2022-12-13 20:35:54,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:54,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592278116] [2022-12-13 20:35:54,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:54,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:35:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:35:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:35:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:35:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:35:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:35:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 20:35:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 20:35:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 20:35:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:35:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 20:35:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 20:35:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 20:35:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:35:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 20:35:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:54,937 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 20:35:54,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:54,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592278116] [2022-12-13 20:35:54,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592278116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:54,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:54,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:35:54,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137716869] [2022-12-13 20:35:54,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:54,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:35:54,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:35:54,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:35:54,939 INFO L87 Difference]: Start difference. First operand 680790 states and 1175673 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:37:03,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:37:03,679 INFO L93 Difference]: Finished difference Result 712486 states and 1246241 transitions. [2022-12-13 20:37:03,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 20:37:03,680 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2022-12-13 20:37:03,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:37:06,497 INFO L225 Difference]: With dead ends: 712486 [2022-12-13 20:37:06,497 INFO L226 Difference]: Without dead ends: 706522 [2022-12-13 20:37:06,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2022-12-13 20:37:06,830 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 3227 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 4182 mSolverCounterSat, 1612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3244 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 5794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1612 IncrementalHoareTripleChecker+Valid, 4182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:37:06,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3244 Valid, 1321 Invalid, 5794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1612 Valid, 4182 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 20:37:07,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706522 states. [2022-12-13 20:38:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706522 to 687046. [2022-12-13 20:38:12,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687046 states, 577435 states have (on average 1.6104340748309334) internal successors, (929921), 577274 states have internal predecessors, (929921), 108736 states have call successors, (108736), 675 states have call predecessors, (108736), 874 states have return successors, (146435), 109272 states have call predecessors, (146435), 108640 states have call successors, (146435) [2022-12-13 20:38:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687046 states to 687046 states and 1185092 transitions. [2022-12-13 20:38:15,700 INFO L78 Accepts]: Start accepts. Automaton has 687046 states and 1185092 transitions. Word has length 147 [2022-12-13 20:38:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:38:15,701 INFO L495 AbstractCegarLoop]: Abstraction has 687046 states and 1185092 transitions. [2022-12-13 20:38:15,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 20:38:15,701 INFO L276 IsEmpty]: Start isEmpty. Operand 687046 states and 1185092 transitions. [2022-12-13 20:38:15,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 20:38:15,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:38:15,892 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:15,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 20:38:15,892 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:38:15,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:15,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1615386911, now seen corresponding path program 1 times [2022-12-13 20:38:15,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:15,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884603431] [2022-12-13 20:38:15,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:15,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 20:38:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:38:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:38:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 20:38:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:38:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 20:38:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 20:38:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 20:38:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 20:38:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:38:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 20:38:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 20:38:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 20:38:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 20:38:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 20:38:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 20:38:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 20:38:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 20:38:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 20:38:16,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:16,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884603431] [2022-12-13 20:38:16,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884603431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:16,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:16,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 20:38:16,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116842127] [2022-12-13 20:38:16,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:16,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:38:16,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:16,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:38:16,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:38:16,082 INFO L87 Difference]: Start difference. First operand 687046 states and 1185092 transitions. Second operand has 14 states, 13 states have (on average 8.384615384615385) internal successors, (109), 8 states have internal predecessors, (109), 5 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2022-12-13 20:39:20,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:39:20,392 INFO L93 Difference]: Finished difference Result 707128 states and 1235071 transitions. [2022-12-13 20:39:20,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 20:39:20,393 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.384615384615385) internal successors, (109), 8 states have internal predecessors, (109), 5 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 169 [2022-12-13 20:39:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:39:23,209 INFO L225 Difference]: With dead ends: 707128 [2022-12-13 20:39:23,209 INFO L226 Difference]: Without dead ends: 694854 [2022-12-13 20:39:23,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 20:39:23,490 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 2107 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 5396 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2126 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 6363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 5396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 20:39:23,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2126 Valid, 2006 Invalid, 6363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 5396 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 20:39:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694854 states.