./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product35.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_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/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_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/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_cfe9dfbf-6246-4b64-9820-12549f8b2494/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 979399ca852926e8ca1f854d8ed303a24eaf5d25d69a2db1d99b3449cc418039 --- 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 11:15:31,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:15:31,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:15:31,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:15:31,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:15:31,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:15:31,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:15:31,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:15:31,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:15:31,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:15:31,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:15:31,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:15:31,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:15:31,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:15:31,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:15:31,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:15:31,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:15:31,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:15:31,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:15:31,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:15:31,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:15:31,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:15:31,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:15:31,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:15:31,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:15:31,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:15:31,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:15:31,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:15:31,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:15:31,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:15:31,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:15:31,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:15:31,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:15:31,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:15:31,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:15:31,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:15:31,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:15:31,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:15:31,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:15:31,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:15:31,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:15:31,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:15:31,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:15:31,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:15:31,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:15:31,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:15:31,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:15:31,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:15:31,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:15:31,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:15:31,910 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:15:31,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:15:31,911 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:15:31,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:15:31,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:15:31,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:15:31,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:15:31,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:15:31,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:15:31,912 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:15:31,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:15:31,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:15:31,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:15:31,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:15:31,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:15:31,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:15:31,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:15:31,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:15:31,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:15:31,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:15:31,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:15:31,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:15:31,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:15:31,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:15:31,915 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:15:31,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:15:31,915 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:15:31,915 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_cfe9dfbf-6246-4b64-9820-12549f8b2494/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 979399ca852926e8ca1f854d8ed303a24eaf5d25d69a2db1d99b3449cc418039 [2022-12-13 11:15:32,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:15:32,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:15:32,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:15:32,131 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:15:32,132 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:15:32,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec9_product35.cil.c [2022-12-13 11:15:34,726 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:15:34,953 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:15:34,954 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c [2022-12-13 11:15:34,969 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/data/f4dbb6ada/2fd66d625e824d2fb4b55865985491b9/FLAGa236a8051 [2022-12-13 11:15:34,981 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/data/f4dbb6ada/2fd66d625e824d2fb4b55865985491b9 [2022-12-13 11:15:34,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:15:34,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:15:34,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:15:34,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:15:34,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:15:34,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:15:34" (1/1) ... [2022-12-13 11:15:34,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2979453d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:34, skipping insertion in model container [2022-12-13 11:15:34,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:15:34" (1/1) ... [2022-12-13 11:15:34,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:15:35,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:15:35,239 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,243 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,247 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,345 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,347 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,380 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_cfe9dfbf-6246-4b64-9820-12549f8b2494/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c[46615,46628] [2022-12-13 11:15:35,403 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,409 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,409 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,410 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,419 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,420 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:15:35,447 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:15:35,458 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,459 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,461 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,512 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,513 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,525 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_cfe9dfbf-6246-4b64-9820-12549f8b2494/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c[46615,46628] [2022-12-13 11:15:35,530 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,532 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,532 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,533 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,538 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,539 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:15:35,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:15:35,577 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:15:35,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35 WrapperNode [2022-12-13 11:15:35,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:15:35,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:15:35,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:15:35,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:15:35,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,654 INFO L138 Inliner]: procedures = 138, calls = 252, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1162 [2022-12-13 11:15:35,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:15:35,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:15:35,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:15:35,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:15:35,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,707 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:15:35,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:15:35,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:15:35,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:15:35,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (1/1) ... [2022-12-13 11:15:35,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:15:35,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:15:35,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:15:35,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:15:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-13 11:15:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-13 11:15:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 11:15:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 11:15:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-13 11:15:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-13 11:15:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 11:15:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 11:15:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-13 11:15:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-13 11:15:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 11:15:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 11:15:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-13 11:15:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-13 11:15:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 11:15:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 11:15:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 11:15:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 11:15:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 11:15:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 11:15:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-13 11:15:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-13 11:15:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-13 11:15:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-13 11:15:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 11:15:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 11:15:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 11:15:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 11:15:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 11:15:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-13 11:15:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-13 11:15:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 11:15:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 11:15:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:15:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-13 11:15:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-13 11:15:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-13 11:15:35,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-13 11:15:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 11:15:35,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 11:15:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 11:15:35,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 11:15:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 11:15:35,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 11:15:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 11:15:35,794 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 11:15:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-13 11:15:35,794 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-13 11:15:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 11:15:35,794 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 11:15:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-13 11:15:35,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-13 11:15:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 11:15:35,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 11:15:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 11:15:35,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 11:15:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:15:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 11:15:35,795 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 11:15:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 11:15:35,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 11:15:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:15:35,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:15:35,977 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:15:35,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:15:36,628 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:15:36,635 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:15:36,635 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:15:36,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:15:36 BoogieIcfgContainer [2022-12-13 11:15:36,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:15:36,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:15:36,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:15:36,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:15:36,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:15:34" (1/3) ... [2022-12-13 11:15:36,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8f7e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:15:36, skipping insertion in model container [2022-12-13 11:15:36,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:15:35" (2/3) ... [2022-12-13 11:15:36,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8f7e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:15:36, skipping insertion in model container [2022-12-13 11:15:36,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:15:36" (3/3) ... [2022-12-13 11:15:36,643 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product35.cil.c [2022-12-13 11:15:36,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:15:36,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:15:36,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:15:36,705 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;@d3bed3d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:15:36,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:15:36,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 467 states, 361 states have (on average 1.5346260387811634) internal successors, (554), 366 states have internal predecessors, (554), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-13 11:15:36,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-13 11:15:36,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:36,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:36,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:36,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:36,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1305642597, now seen corresponding path program 1 times [2022-12-13 11:15:36,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:36,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410887505] [2022-12-13 11:15:36,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:36,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 11:15:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 11:15:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 11:15:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 11:15:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 11:15:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 11:15:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 11:15:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 11:15:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 11:15:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 11:15:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 11:15:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 11:15:37,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:37,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410887505] [2022-12-13 11:15:37,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410887505] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:15:37,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55630968] [2022-12-13 11:15:37,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:37,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:37,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:15:37,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:15:37,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:15:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:37,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 11:15:37,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:37,546 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 11:15:37,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:37,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55630968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:37,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:15:37,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-12-13 11:15:37,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117109705] [2022-12-13 11:15:37,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:37,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:15:37,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:37,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:15:37,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:15:37,586 INFO L87 Difference]: Start difference. First operand has 467 states, 361 states have (on average 1.5346260387811634) internal successors, (554), 366 states have internal predecessors, (554), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:15:37,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:37,659 INFO L93 Difference]: Finished difference Result 736 states and 1090 transitions. [2022-12-13 11:15:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:15:37,661 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2022-12-13 11:15:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:37,671 INFO L225 Difference]: With dead ends: 736 [2022-12-13 11:15:37,671 INFO L226 Difference]: Without dead ends: 460 [2022-12-13 11:15:37,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 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 11:15:37,678 INFO L413 NwaCegarLoop]: 700 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, 700 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 11:15:37,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:15:37,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-12-13 11:15:37,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2022-12-13 11:15:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 355 states have (on average 1.5295774647887324) internal successors, (543), 359 states have internal predecessors, (543), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-12-13 11:15:37,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 692 transitions. [2022-12-13 11:15:37,733 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 692 transitions. Word has length 110 [2022-12-13 11:15:37,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:37,734 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 692 transitions. [2022-12-13 11:15:37,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:15:37,735 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 692 transitions. [2022-12-13 11:15:37,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 11:15:37,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:37,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:37,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:15:37,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 11:15:37,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:37,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:37,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1412794511, now seen corresponding path program 1 times [2022-12-13 11:15:37,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:37,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086074210] [2022-12-13 11:15:37,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:37,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 11:15:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 11:15:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 11:15:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:15:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 11:15:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 11:15:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 11:15:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 11:15:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 11:15:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 11:15:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 11:15:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,162 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 11:15:38,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:38,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086074210] [2022-12-13 11:15:38,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086074210] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:15:38,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665073199] [2022-12-13 11:15:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:38,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:38,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:15:38,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:15:38,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:15:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:15:38,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 11:15:38,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:38,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665073199] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:38,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:15:38,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 11:15:38,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256419337] [2022-12-13 11:15:38,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:38,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:15:38,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:15:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:15:38,448 INFO L87 Difference]: Start difference. First operand 460 states and 692 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:15:38,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:38,480 INFO L93 Difference]: Finished difference Result 726 states and 1068 transitions. [2022-12-13 11:15:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:15:38,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2022-12-13 11:15:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:38,483 INFO L225 Difference]: With dead ends: 726 [2022-12-13 11:15:38,483 INFO L226 Difference]: Without dead ends: 463 [2022-12-13 11:15:38,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 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 11:15:38,485 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 1 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1378 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 11:15:38,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1378 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:15:38,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-12-13 11:15:38,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 462. [2022-12-13 11:15:38,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 357 states have (on average 1.526610644257703) internal successors, (545), 361 states have internal predecessors, (545), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-12-13 11:15:38,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 694 transitions. [2022-12-13 11:15:38,505 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 694 transitions. Word has length 111 [2022-12-13 11:15:38,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:38,506 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 694 transitions. [2022-12-13 11:15:38,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:15:38,506 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 694 transitions. [2022-12-13 11:15:38,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-13 11:15:38,508 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:38,508 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:38,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 11:15:38,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:38,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:38,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:38,710 INFO L85 PathProgramCache]: Analyzing trace with hash 389162940, now seen corresponding path program 1 times [2022-12-13 11:15:38,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:38,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015860081] [2022-12-13 11:15:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 11:15:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 11:15:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 11:15:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 11:15:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 11:15:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 11:15:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 11:15:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:15:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 11:15:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 11:15:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 11:15:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 11:15:38,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:38,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015860081] [2022-12-13 11:15:38,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015860081] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:15:38,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133361687] [2022-12-13 11:15:38,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:38,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:38,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:15:38,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:15:38,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 11:15:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:15:39,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:39,185 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 11:15:39,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:39,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133361687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:39,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:15:39,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 11:15:39,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533960525] [2022-12-13 11:15:39,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:39,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:15:39,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:39,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:15:39,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:15:39,188 INFO L87 Difference]: Start difference. First operand 462 states and 694 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:15:39,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:39,218 INFO L93 Difference]: Finished difference Result 977 states and 1488 transitions. [2022-12-13 11:15:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:15:39,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-12-13 11:15:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:39,225 INFO L225 Difference]: With dead ends: 977 [2022-12-13 11:15:39,225 INFO L226 Difference]: Without dead ends: 542 [2022-12-13 11:15:39,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 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 11:15:39,229 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 142 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1365 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 11:15:39,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1365 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:15:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-12-13 11:15:39,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 534. [2022-12-13 11:15:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 415 states have (on average 1.546987951807229) internal successors, (642), 419 states have internal predecessors, (642), 89 states have call successors, (89), 29 states have call predecessors, (89), 29 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2022-12-13 11:15:39,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 819 transitions. [2022-12-13 11:15:39,272 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 819 transitions. Word has length 120 [2022-12-13 11:15:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:39,273 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 819 transitions. [2022-12-13 11:15:39,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:15:39,273 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 819 transitions. [2022-12-13 11:15:39,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-13 11:15:39,280 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:39,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:39,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 11:15:39,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:39,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:39,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:39,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2042303042, now seen corresponding path program 1 times [2022-12-13 11:15:39,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:39,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702757142] [2022-12-13 11:15:39,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:39,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 11:15:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 11:15:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 11:15:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 11:15:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 11:15:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:15:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:15:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:15:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 11:15:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 11:15:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 11:15:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 11:15:39,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:39,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702757142] [2022-12-13 11:15:39,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702757142] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:15:39,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451536041] [2022-12-13 11:15:39,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:39,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:39,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:15:39,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:15:39,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 11:15:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:15:40,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 11:15:40,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:40,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451536041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:40,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:15:40,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 11:15:40,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223658993] [2022-12-13 11:15:40,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:40,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:15:40,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:40,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:15:40,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:15:40,102 INFO L87 Difference]: Start difference. First operand 534 states and 819 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 11:15:40,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:40,167 INFO L93 Difference]: Finished difference Result 1059 states and 1628 transitions. [2022-12-13 11:15:40,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:15:40,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-12-13 11:15:40,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:40,170 INFO L225 Difference]: With dead ends: 1059 [2022-12-13 11:15:40,170 INFO L226 Difference]: Without dead ends: 536 [2022-12-13 11:15:40,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 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 11:15:40,172 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 160 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2549 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 11:15:40,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2549 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:15:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-12-13 11:15:40,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2022-12-13 11:15:40,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 416 states have (on average 1.5456730769230769) internal successors, (643), 421 states have internal predecessors, (643), 89 states have call successors, (89), 29 states have call predecessors, (89), 30 states have return successors, (90), 87 states have call predecessors, (90), 88 states have call successors, (90) [2022-12-13 11:15:40,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 822 transitions. [2022-12-13 11:15:40,195 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 822 transitions. Word has length 121 [2022-12-13 11:15:40,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:40,196 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 822 transitions. [2022-12-13 11:15:40,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 11:15:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 822 transitions. [2022-12-13 11:15:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-13 11:15:40,200 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:40,200 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:40,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 11:15:40,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:40,401 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:40,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:40,401 INFO L85 PathProgramCache]: Analyzing trace with hash -410227042, now seen corresponding path program 1 times [2022-12-13 11:15:40,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:40,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029556835] [2022-12-13 11:15:40,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:40,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:15:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 11:15:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:15:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 11:15:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 11:15:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 11:15:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 11:15:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 11:15:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 11:15:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 11:15:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 11:15:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,661 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 11:15:40,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:40,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029556835] [2022-12-13 11:15:40,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029556835] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:15:40,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986133169] [2022-12-13 11:15:40,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:40,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:40,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:15:40,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:15:40,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 11:15:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:40,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:15:40,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:40,933 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 11:15:40,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:40,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986133169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:40,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:15:40,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 11:15:40,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578469761] [2022-12-13 11:15:40,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:40,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:15:40,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:40,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:15:40,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:15:40,934 INFO L87 Difference]: Start difference. First operand 536 states and 822 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 11:15:41,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:41,003 INFO L93 Difference]: Finished difference Result 1061 states and 1633 transitions. [2022-12-13 11:15:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:15:41,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-12-13 11:15:41,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:41,009 INFO L225 Difference]: With dead ends: 1061 [2022-12-13 11:15:41,009 INFO L226 Difference]: Without dead ends: 538 [2022-12-13 11:15:41,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 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 11:15:41,013 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 159 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2538 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 11:15:41,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2538 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:15:41,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-12-13 11:15:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-12-13 11:15:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 417 states have (on average 1.5443645083932853) internal successors, (644), 423 states have internal predecessors, (644), 89 states have call successors, (89), 29 states have call predecessors, (89), 31 states have return successors, (95), 87 states have call predecessors, (95), 88 states have call successors, (95) [2022-12-13 11:15:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 828 transitions. [2022-12-13 11:15:41,035 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 828 transitions. Word has length 122 [2022-12-13 11:15:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:41,035 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 828 transitions. [2022-12-13 11:15:41,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 11:15:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 828 transitions. [2022-12-13 11:15:41,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-13 11:15:41,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:41,037 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:41,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 11:15:41,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:41,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:41,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:41,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1783283689, now seen corresponding path program 1 times [2022-12-13 11:15:41,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:41,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128128616] [2022-12-13 11:15:41,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:41,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:15:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:15:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 11:15:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 11:15:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 11:15:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 11:15:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:15:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:15:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 11:15:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 11:15:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 11:15:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 11:15:41,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:41,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128128616] [2022-12-13 11:15:41,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128128616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:41,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:41,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:15:41,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418415] [2022-12-13 11:15:41,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:41,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:15:41,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:41,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:15:41,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:15:41,574 INFO L87 Difference]: Start difference. First operand 538 states and 828 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 11:15:43,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:43,840 INFO L93 Difference]: Finished difference Result 1287 states and 2007 transitions. [2022-12-13 11:15:43,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 11:15:43,841 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2022-12-13 11:15:43,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:43,847 INFO L225 Difference]: With dead ends: 1287 [2022-12-13 11:15:43,847 INFO L226 Difference]: Without dead ends: 772 [2022-12-13 11:15:43,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 11:15:43,850 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1830 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3454 mSolverCounterSat, 752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 4206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 3454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:43,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1850 Valid, 1247 Invalid, 4206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [752 Valid, 3454 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 11:15:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-12-13 11:15:43,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 538. [2022-12-13 11:15:43,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 417 states have (on average 1.5443645083932853) internal successors, (644), 423 states have internal predecessors, (644), 89 states have call successors, (89), 29 states have call predecessors, (89), 31 states have return successors, (94), 87 states have call predecessors, (94), 88 states have call successors, (94) [2022-12-13 11:15:43,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 827 transitions. [2022-12-13 11:15:43,905 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 827 transitions. Word has length 123 [2022-12-13 11:15:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:43,905 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 827 transitions. [2022-12-13 11:15:43,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 11:15:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 827 transitions. [2022-12-13 11:15:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-13 11:15:43,908 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:43,908 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:43,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:15:43,908 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:43,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash -14687389, now seen corresponding path program 2 times [2022-12-13 11:15:43,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:43,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935115669] [2022-12-13 11:15:43,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:43,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:15:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:15:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:15:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 11:15:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:15:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 11:15:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 11:15:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 11:15:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 11:15:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:15:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 11:15:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 11:15:44,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:44,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935115669] [2022-12-13 11:15:44,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935115669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:44,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:44,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:15:44,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788407884] [2022-12-13 11:15:44,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:44,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:15:44,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:44,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:15:44,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:15:44,065 INFO L87 Difference]: Start difference. First operand 538 states and 827 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, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 11:15:46,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:46,109 INFO L93 Difference]: Finished difference Result 1289 states and 2010 transitions. [2022-12-13 11:15:46,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 11:15:46,110 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, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2022-12-13 11:15:46,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:46,117 INFO L225 Difference]: With dead ends: 1289 [2022-12-13 11:15:46,117 INFO L226 Difference]: Without dead ends: 774 [2022-12-13 11:15:46,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 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 11:15:46,121 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1904 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:46,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 1246 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 11:15:46,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-12-13 11:15:46,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 540. [2022-12-13 11:15:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 418 states have (on average 1.5430622009569377) internal successors, (645), 425 states have internal predecessors, (645), 89 states have call successors, (89), 29 states have call predecessors, (89), 32 states have return successors, (96), 87 states have call predecessors, (96), 88 states have call successors, (96) [2022-12-13 11:15:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 830 transitions. [2022-12-13 11:15:46,179 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 830 transitions. Word has length 124 [2022-12-13 11:15:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:46,179 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 830 transitions. [2022-12-13 11:15:46,180 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, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 11:15:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 830 transitions. [2022-12-13 11:15:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-12-13 11:15:46,183 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:46,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:46,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:15:46,183 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:46,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:46,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1844049874, now seen corresponding path program 1 times [2022-12-13 11:15:46,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:46,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539411172] [2022-12-13 11:15:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:46,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:15:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:15:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:15:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 11:15:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 11:15:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:15:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 11:15:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 11:15:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:15:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 11:15:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 11:15:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:46,351 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 11:15:46,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:46,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539411172] [2022-12-13 11:15:46,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539411172] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:46,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:46,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:15:46,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709579077] [2022-12-13 11:15:46,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:46,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:15:46,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:46,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:15:46,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:15:46,352 INFO L87 Difference]: Start difference. First operand 540 states and 830 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-12-13 11:15:48,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:48,757 INFO L93 Difference]: Finished difference Result 1287 states and 2005 transitions. [2022-12-13 11:15:48,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:15:48,758 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2022-12-13 11:15:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:48,761 INFO L225 Difference]: With dead ends: 1287 [2022-12-13 11:15:48,761 INFO L226 Difference]: Without dead ends: 774 [2022-12-13 11:15:48,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 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 11:15:48,763 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1977 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5813 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 6605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 5813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:48,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1977 Valid, 1629 Invalid, 6605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 5813 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 11:15:48,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-12-13 11:15:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 540. [2022-12-13 11:15:48,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 418 states have (on average 1.5430622009569377) internal successors, (645), 425 states have internal predecessors, (645), 89 states have call successors, (89), 29 states have call predecessors, (89), 32 states have return successors, (95), 87 states have call predecessors, (95), 88 states have call successors, (95) [2022-12-13 11:15:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 829 transitions. [2022-12-13 11:15:48,805 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 829 transitions. Word has length 125 [2022-12-13 11:15:48,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:48,805 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 829 transitions. [2022-12-13 11:15:48,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-12-13 11:15:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 829 transitions. [2022-12-13 11:15:48,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-13 11:15:48,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:48,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:48,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:15:48,808 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:48,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1768213281, now seen corresponding path program 2 times [2022-12-13 11:15:48,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:48,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430449906] [2022-12-13 11:15:48,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:48,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:15:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:15:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:15:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 11:15:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 11:15:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:15:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 11:15:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 11:15:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:15:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 11:15:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 11:15:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 11:15:48,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:48,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430449906] [2022-12-13 11:15:48,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430449906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:48,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:48,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:15:48,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310966336] [2022-12-13 11:15:48,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:48,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:15:48,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:48,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:15:48,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:15:48,982 INFO L87 Difference]: Start difference. First operand 540 states and 829 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-12-13 11:15:51,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:51,652 INFO L93 Difference]: Finished difference Result 1289 states and 2011 transitions. [2022-12-13 11:15:51,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:15:51,653 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 126 [2022-12-13 11:15:51,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:51,655 INFO L225 Difference]: With dead ends: 1289 [2022-12-13 11:15:51,656 INFO L226 Difference]: Without dead ends: 776 [2022-12-13 11:15:51,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 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 11:15:51,657 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 2105 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5505 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 6337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 5505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:51,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 1628 Invalid, 6337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 5505 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 11:15:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-12-13 11:15:51,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 542. [2022-12-13 11:15:51,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 419 states have (on average 1.541766109785203) internal successors, (646), 427 states have internal predecessors, (646), 89 states have call successors, (89), 29 states have call predecessors, (89), 33 states have return successors, (100), 87 states have call predecessors, (100), 88 states have call successors, (100) [2022-12-13 11:15:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 835 transitions. [2022-12-13 11:15:51,693 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 835 transitions. Word has length 126 [2022-12-13 11:15:51,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:51,693 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 835 transitions. [2022-12-13 11:15:51,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-12-13 11:15:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 835 transitions. [2022-12-13 11:15:51,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 11:15:51,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:51,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:51,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:15:51,695 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:51,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:51,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1051089069, now seen corresponding path program 1 times [2022-12-13 11:15:51,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:51,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919375646] [2022-12-13 11:15:51,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:51,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:15:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:15:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:15:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 11:15:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 11:15:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 11:15:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 11:15:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 11:15:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:15:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 11:15:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 11:15:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 11:15:51,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:51,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919375646] [2022-12-13 11:15:51,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919375646] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:15:51,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312463602] [2022-12-13 11:15:51,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:51,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:15:51,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:15:51,856 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:15:51,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 11:15:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:52,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:15:52,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:52,103 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:15:52,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:15:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:15:52,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312463602] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:15:52,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:15:52,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-12-13 11:15:52,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998087064] [2022-12-13 11:15:52,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:15:52,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 11:15:52,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:52,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 11:15:52,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:15:52,171 INFO L87 Difference]: Start difference. First operand 542 states and 835 transitions. Second operand has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 11:15:56,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:56,246 INFO L93 Difference]: Finished difference Result 2198 states and 3649 transitions. [2022-12-13 11:15:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 11:15:56,246 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 127 [2022-12-13 11:15:56,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:56,252 INFO L225 Difference]: With dead ends: 2198 [2022-12-13 11:15:56,253 INFO L226 Difference]: Without dead ends: 1687 [2022-12-13 11:15:56,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-12-13 11:15:56,254 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 4311 mSDsluCounter, 4077 mSDsCounter, 0 mSdLazyCounter, 7415 mSolverCounterSat, 1806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4313 SdHoareTripleChecker+Valid, 4578 SdHoareTripleChecker+Invalid, 9221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1806 IncrementalHoareTripleChecker+Valid, 7415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:56,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4313 Valid, 4578 Invalid, 9221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1806 Valid, 7415 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-13 11:15:56,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-12-13 11:15:56,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 985. [2022-12-13 11:15:56,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 783 states have (on average 1.5989782886334611) internal successors, (1252), 791 states have internal predecessors, (1252), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (189), 166 states have call predecessors, (189), 167 states have call successors, (189) [2022-12-13 11:15:56,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1609 transitions. [2022-12-13 11:15:56,326 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1609 transitions. Word has length 127 [2022-12-13 11:15:56,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:56,326 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1609 transitions. [2022-12-13 11:15:56,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 11:15:56,326 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1609 transitions. [2022-12-13 11:15:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-13 11:15:56,329 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:56,329 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:15:56,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 11:15:56,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 11:15:56,530 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:56,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:56,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1684173326, now seen corresponding path program 1 times [2022-12-13 11:15:56,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:56,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890964742] [2022-12-13 11:15:56,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:56,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:15:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:15:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:15:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 11:15:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:15:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 11:15:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:15:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 11:15:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 11:15:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 11:15:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 11:15:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:15:56,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:56,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890964742] [2022-12-13 11:15:56,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890964742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:56,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:56,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:15:56,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049780218] [2022-12-13 11:15:56,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:56,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:15:56,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:56,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:15:56,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:15:56,628 INFO L87 Difference]: Start difference. First operand 985 states and 1609 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:15:58,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:58,075 INFO L93 Difference]: Finished difference Result 2549 states and 4257 transitions. [2022-12-13 11:15:58,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:15:58,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2022-12-13 11:15:58,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:58,082 INFO L225 Difference]: With dead ends: 2549 [2022-12-13 11:15:58,082 INFO L226 Difference]: Without dead ends: 1642 [2022-12-13 11:15:58,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:15:58,083 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 1827 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:58,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 1106 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 11:15:58,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2022-12-13 11:15:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1400. [2022-12-13 11:15:58,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1119 states have (on average 1.6193029490616622) internal successors, (1812), 1127 states have internal predecessors, (1812), 247 states have call successors, (247), 29 states have call predecessors, (247), 33 states have return successors, (278), 245 states have call predecessors, (278), 246 states have call successors, (278) [2022-12-13 11:15:58,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2337 transitions. [2022-12-13 11:15:58,217 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2337 transitions. Word has length 130 [2022-12-13 11:15:58,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:58,218 INFO L495 AbstractCegarLoop]: Abstraction has 1400 states and 2337 transitions. [2022-12-13 11:15:58,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:15:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2337 transitions. [2022-12-13 11:15:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-13 11:15:58,224 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:58,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:15:58,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 11:15:58,225 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:58,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1439175383, now seen corresponding path program 1 times [2022-12-13 11:15:58,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:58,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419865646] [2022-12-13 11:15:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:58,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:15:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:15:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:15:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:15:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:15:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:15:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 11:15:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 11:15:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:15:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 11:15:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:15:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 11:15:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 11:15:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 11:15:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:15:58,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:58,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419865646] [2022-12-13 11:15:58,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419865646] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:58,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:58,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:15:58,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580107530] [2022-12-13 11:15:58,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:58,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:15:58,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:58,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:15:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:15:58,329 INFO L87 Difference]: Start difference. First operand 1400 states and 2337 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:00,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:00,083 INFO L93 Difference]: Finished difference Result 3588 states and 6070 transitions. [2022-12-13 11:16:00,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:00,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-12-13 11:16:00,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:00,091 INFO L225 Difference]: With dead ends: 3588 [2022-12-13 11:16:00,091 INFO L226 Difference]: Without dead ends: 2319 [2022-12-13 11:16:00,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:00,098 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1923 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:00,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 1068 Invalid, 2763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [830 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 11:16:00,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2022-12-13 11:16:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2077. [2022-12-13 11:16:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1677 states have (on average 1.6302921884317234) internal successors, (2734), 1685 states have internal predecessors, (2734), 366 states have call successors, (366), 29 states have call predecessors, (366), 33 states have return successors, (397), 364 states have call predecessors, (397), 365 states have call successors, (397) [2022-12-13 11:16:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 3497 transitions. [2022-12-13 11:16:00,283 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 3497 transitions. Word has length 131 [2022-12-13 11:16:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:00,283 INFO L495 AbstractCegarLoop]: Abstraction has 2077 states and 3497 transitions. [2022-12-13 11:16:00,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 3497 transitions. [2022-12-13 11:16:00,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 11:16:00,290 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:00,290 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:16:00,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 11:16:00,290 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:00,290 INFO L85 PathProgramCache]: Analyzing trace with hash 723238404, now seen corresponding path program 1 times [2022-12-13 11:16:00,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:00,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720670215] [2022-12-13 11:16:00,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:00,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 11:16:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 11:16:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 11:16:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:16:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:16:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 11:16:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 11:16:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 11:16:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:00,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:00,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720670215] [2022-12-13 11:16:00,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720670215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:00,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:00,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:16:00,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058279962] [2022-12-13 11:16:00,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:00,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:16:00,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:00,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:16:00,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:16:00,377 INFO L87 Difference]: Start difference. First operand 2077 states and 3497 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:02,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:02,002 INFO L93 Difference]: Finished difference Result 5173 states and 8849 transitions. [2022-12-13 11:16:02,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:02,003 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-12-13 11:16:02,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:02,017 INFO L225 Difference]: With dead ends: 5173 [2022-12-13 11:16:02,017 INFO L226 Difference]: Without dead ends: 3362 [2022-12-13 11:16:02,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:02,023 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1786 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 797 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:02,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 1042 Invalid, 2853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [797 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 11:16:02,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2022-12-13 11:16:02,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3120. [2022-12-13 11:16:02,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2558 states have (on average 1.638780297107115) internal successors, (4192), 2566 states have internal predecessors, (4192), 528 states have call successors, (528), 29 states have call predecessors, (528), 33 states have return successors, (575), 526 states have call predecessors, (575), 527 states have call successors, (575) [2022-12-13 11:16:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 5295 transitions. [2022-12-13 11:16:02,276 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 5295 transitions. Word has length 132 [2022-12-13 11:16:02,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:02,276 INFO L495 AbstractCegarLoop]: Abstraction has 3120 states and 5295 transitions. [2022-12-13 11:16:02,276 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:02,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 5295 transitions. [2022-12-13 11:16:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 11:16:02,282 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:02,282 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:16:02,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 11:16:02,283 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:02,283 INFO L85 PathProgramCache]: Analyzing trace with hash -240342154, now seen corresponding path program 1 times [2022-12-13 11:16:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:02,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128068575] [2022-12-13 11:16:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:02,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 11:16:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 11:16:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 11:16:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 11:16:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:16:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 11:16:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 11:16:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 11:16:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:02,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:02,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128068575] [2022-12-13 11:16:02,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128068575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:02,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:02,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:16:02,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816962442] [2022-12-13 11:16:02,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:02,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:16:02,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:02,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:16:02,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:16:02,381 INFO L87 Difference]: Start difference. First operand 3120 states and 5295 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:04,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:04,375 INFO L93 Difference]: Finished difference Result 7687 states and 13264 transitions. [2022-12-13 11:16:04,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:04,376 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2022-12-13 11:16:04,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:04,389 INFO L225 Difference]: With dead ends: 7687 [2022-12-13 11:16:04,390 INFO L226 Difference]: Without dead ends: 5052 [2022-12-13 11:16:04,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:04,394 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1934 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 849 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 849 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:04,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 1042 Invalid, 2804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [849 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:16:04,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5052 states. [2022-12-13 11:16:04,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5052 to 4810. [2022-12-13 11:16:04,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4003 states have (on average 1.6447664251811143) internal successors, (6584), 4011 states have internal predecessors, (6584), 773 states have call successors, (773), 29 states have call predecessors, (773), 33 states have return successors, (846), 771 states have call predecessors, (846), 772 states have call successors, (846) [2022-12-13 11:16:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 8203 transitions. [2022-12-13 11:16:04,756 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 8203 transitions. Word has length 133 [2022-12-13 11:16:04,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:04,757 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 8203 transitions. [2022-12-13 11:16:04,757 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:04,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 8203 transitions. [2022-12-13 11:16:04,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 11:16:04,768 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:04,769 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:16:04,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 11:16:04,769 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:04,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:04,769 INFO L85 PathProgramCache]: Analyzing trace with hash 884137384, now seen corresponding path program 1 times [2022-12-13 11:16:04,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:04,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236173002] [2022-12-13 11:16:04,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:04,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 11:16:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:16:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 11:16:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 11:16:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 11:16:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 11:16:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 11:16:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 11:16:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:04,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:04,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236173002] [2022-12-13 11:16:04,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236173002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:04,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:04,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:16:04,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400952302] [2022-12-13 11:16:04,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:04,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:16:04,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:04,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:16:04,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:16:04,864 INFO L87 Difference]: Start difference. First operand 4810 states and 8203 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:07,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:07,136 INFO L93 Difference]: Finished difference Result 11888 states and 20641 transitions. [2022-12-13 11:16:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:07,137 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-12-13 11:16:07,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:07,161 INFO L225 Difference]: With dead ends: 11888 [2022-12-13 11:16:07,161 INFO L226 Difference]: Without dead ends: 7895 [2022-12-13 11:16:07,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:07,168 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1922 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:07,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 1086 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:16:07,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7895 states. [2022-12-13 11:16:07,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7895 to 7653. [2022-12-13 11:16:07,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7653 states, 6353 states have (on average 1.6437903352746734) internal successors, (10443), 6361 states have internal predecessors, (10443), 1266 states have call successors, (1266), 29 states have call predecessors, (1266), 33 states have return successors, (1383), 1264 states have call predecessors, (1383), 1265 states have call successors, (1383) [2022-12-13 11:16:07,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7653 states to 7653 states and 13092 transitions. [2022-12-13 11:16:07,703 INFO L78 Accepts]: Start accepts. Automaton has 7653 states and 13092 transitions. Word has length 134 [2022-12-13 11:16:07,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:07,704 INFO L495 AbstractCegarLoop]: Abstraction has 7653 states and 13092 transitions. [2022-12-13 11:16:07,704 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 7653 states and 13092 transitions. [2022-12-13 11:16:07,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-13 11:16:07,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:07,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:16:07,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 11:16:07,715 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:07,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:07,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1357659182, now seen corresponding path program 1 times [2022-12-13 11:16:07,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:07,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219808686] [2022-12-13 11:16:07,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:07,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 11:16:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:16:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 11:16:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 11:16:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 11:16:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:16:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 11:16:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 11:16:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,797 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:07,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:07,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219808686] [2022-12-13 11:16:07,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219808686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:07,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:07,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:16:07,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282771947] [2022-12-13 11:16:07,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:07,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:16:07,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:07,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:16:07,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:16:07,799 INFO L87 Difference]: Start difference. First operand 7653 states and 13092 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:10,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:10,453 INFO L93 Difference]: Finished difference Result 19503 states and 33917 transitions. [2022-12-13 11:16:10,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:10,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-12-13 11:16:10,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:10,504 INFO L225 Difference]: With dead ends: 19503 [2022-12-13 11:16:10,504 INFO L226 Difference]: Without dead ends: 13069 [2022-12-13 11:16:10,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:10,521 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1858 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 853 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:10,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 1073 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [853 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:16:10,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13069 states. [2022-12-13 11:16:11,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13069 to 12827. [2022-12-13 11:16:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12827 states, 10705 states have (on average 1.6446520317608595) internal successors, (17606), 10713 states have internal predecessors, (17606), 2088 states have call successors, (2088), 29 states have call predecessors, (2088), 33 states have return successors, (2283), 2086 states have call predecessors, (2283), 2087 states have call successors, (2283) [2022-12-13 11:16:11,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12827 states to 12827 states and 21977 transitions. [2022-12-13 11:16:11,454 INFO L78 Accepts]: Start accepts. Automaton has 12827 states and 21977 transitions. Word has length 135 [2022-12-13 11:16:11,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:11,455 INFO L495 AbstractCegarLoop]: Abstraction has 12827 states and 21977 transitions. [2022-12-13 11:16:11,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:11,455 INFO L276 IsEmpty]: Start isEmpty. Operand 12827 states and 21977 transitions. [2022-12-13 11:16:11,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-13 11:16:11,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:11,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:16:11,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 11:16:11,469 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:11,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:11,470 INFO L85 PathProgramCache]: Analyzing trace with hash 748994394, now seen corresponding path program 1 times [2022-12-13 11:16:11,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:11,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384229654] [2022-12-13 11:16:11,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:11,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 11:16:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 11:16:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 11:16:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 11:16:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 11:16:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 11:16:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 11:16:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 11:16:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:11,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:11,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384229654] [2022-12-13 11:16:11,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384229654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:11,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:11,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:16:11,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25249067] [2022-12-13 11:16:11,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:11,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:16:11,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:11,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:16:11,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:16:11,554 INFO L87 Difference]: Start difference. First operand 12827 states and 21977 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:14,599 INFO L93 Difference]: Finished difference Result 30986 states and 53617 transitions. [2022-12-13 11:16:14,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:14,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-12-13 11:16:14,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:14,646 INFO L225 Difference]: With dead ends: 30986 [2022-12-13 11:16:14,647 INFO L226 Difference]: Without dead ends: 20382 [2022-12-13 11:16:14,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:14,665 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1842 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:14,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 1050 Invalid, 2846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 2014 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:16:14,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20382 states. [2022-12-13 11:16:16,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20382 to 20140. [2022-12-13 11:16:16,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20140 states, 16815 states have (on average 1.6206958073148974) internal successors, (27252), 16823 states have internal predecessors, (27252), 3291 states have call successors, (3291), 29 states have call predecessors, (3291), 33 states have return successors, (3630), 3289 states have call predecessors, (3630), 3290 states have call successors, (3630) [2022-12-13 11:16:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20140 states to 20140 states and 34173 transitions. [2022-12-13 11:16:16,207 INFO L78 Accepts]: Start accepts. Automaton has 20140 states and 34173 transitions. Word has length 136 [2022-12-13 11:16:16,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:16,207 INFO L495 AbstractCegarLoop]: Abstraction has 20140 states and 34173 transitions. [2022-12-13 11:16:16,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 20140 states and 34173 transitions. [2022-12-13 11:16:16,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:16:16,224 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:16,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:16:16,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 11:16:16,224 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:16,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:16,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2047230127, now seen corresponding path program 1 times [2022-12-13 11:16:16,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:16,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242489236] [2022-12-13 11:16:16,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:16,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 11:16:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 11:16:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 11:16:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 11:16:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 11:16:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 11:16:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 11:16:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 11:16:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:16,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:16,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242489236] [2022-12-13 11:16:16,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242489236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:16,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:16,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:16:16,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719044326] [2022-12-13 11:16:16,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:16,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:16:16,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:16,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:16:16,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:16:16,304 INFO L87 Difference]: Start difference. First operand 20140 states and 34173 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:20,645 INFO L93 Difference]: Finished difference Result 53428 states and 92151 transitions. [2022-12-13 11:16:20,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:20,645 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-12-13 11:16:20,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:20,747 INFO L225 Difference]: With dead ends: 53428 [2022-12-13 11:16:20,747 INFO L226 Difference]: Without dead ends: 36188 [2022-12-13 11:16:20,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:20,778 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1765 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:20,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 1045 Invalid, 2912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:16:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36188 states. [2022-12-13 11:16:23,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36188 to 35946. [2022-12-13 11:16:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35946 states, 30171 states have (on average 1.6179112392694972) internal successors, (48814), 30179 states have internal predecessors, (48814), 5741 states have call successors, (5741), 29 states have call predecessors, (5741), 33 states have return successors, (6354), 5739 states have call predecessors, (6354), 5740 states have call successors, (6354) [2022-12-13 11:16:23,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35946 states to 35946 states and 60909 transitions. [2022-12-13 11:16:23,602 INFO L78 Accepts]: Start accepts. Automaton has 35946 states and 60909 transitions. Word has length 137 [2022-12-13 11:16:23,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:23,602 INFO L495 AbstractCegarLoop]: Abstraction has 35946 states and 60909 transitions. [2022-12-13 11:16:23,602 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:23,602 INFO L276 IsEmpty]: Start isEmpty. Operand 35946 states and 60909 transitions. [2022-12-13 11:16:23,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-13 11:16:23,622 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:23,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-12-13 11:16:23,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 11:16:23,622 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:23,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash 253409376, now seen corresponding path program 1 times [2022-12-13 11:16:23,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:23,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047383240] [2022-12-13 11:16:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:23,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 11:16:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 11:16:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 11:16:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 11:16:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 11:16:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 11:16:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 11:16:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 11:16:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:23,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:23,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047383240] [2022-12-13 11:16:23,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047383240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:23,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:23,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:16:23,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342458033] [2022-12-13 11:16:23,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:23,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:16:23,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:16:23,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:16:23,697 INFO L87 Difference]: Start difference. First operand 35946 states and 60909 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:30,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:30,390 INFO L93 Difference]: Finished difference Result 98275 states and 168710 transitions. [2022-12-13 11:16:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:30,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-12-13 11:16:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:30,559 INFO L225 Difference]: With dead ends: 98275 [2022-12-13 11:16:30,559 INFO L226 Difference]: Without dead ends: 66185 [2022-12-13 11:16:30,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:30,617 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1861 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:30,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1881 Valid, 1054 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [843 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 11:16:30,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66185 states. [2022-12-13 11:16:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66185 to 65943. [2022-12-13 11:16:36,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65943 states, 55655 states have (on average 1.613996945467613) internal successors, (89827), 55663 states have internal predecessors, (89827), 10254 states have call successors, (10254), 29 states have call predecessors, (10254), 33 states have return successors, (11399), 10252 states have call predecessors, (11399), 10253 states have call successors, (11399) [2022-12-13 11:16:36,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65943 states to 65943 states and 111480 transitions. [2022-12-13 11:16:36,261 INFO L78 Accepts]: Start accepts. Automaton has 65943 states and 111480 transitions. Word has length 138 [2022-12-13 11:16:36,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:36,261 INFO L495 AbstractCegarLoop]: Abstraction has 65943 states and 111480 transitions. [2022-12-13 11:16:36,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:36,261 INFO L276 IsEmpty]: Start isEmpty. Operand 65943 states and 111480 transitions. [2022-12-13 11:16:36,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-13 11:16:36,286 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:36,286 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:16:36,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 11:16:36,287 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:36,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:36,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1496473903, now seen corresponding path program 1 times [2022-12-13 11:16:36,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:36,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83383291] [2022-12-13 11:16:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:36,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 11:16:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 11:16:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 11:16:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 11:16:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 11:16:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 11:16:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 11:16:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 11:16:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,358 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:36,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:36,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83383291] [2022-12-13 11:16:36,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83383291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:36,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:36,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:16:36,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395905383] [2022-12-13 11:16:36,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:36,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:16:36,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:36,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:16:36,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:16:36,359 INFO L87 Difference]: Start difference. First operand 65943 states and 111480 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:46,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:46,314 INFO L93 Difference]: Finished difference Result 123936 states and 213143 transitions. [2022-12-13 11:16:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:46,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-12-13 11:16:46,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:46,641 INFO L225 Difference]: With dead ends: 123936 [2022-12-13 11:16:46,641 INFO L226 Difference]: Without dead ends: 123673 [2022-12-13 11:16:46,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:46,675 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1735 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:46,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 1044 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [805 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 11:16:46,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123673 states. [2022-12-13 11:16:55,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123673 to 123431. [2022-12-13 11:16:55,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123431 states, 104775 states have (on average 1.6089620615604867) internal successors, (168579), 104783 states have internal predecessors, (168579), 18622 states have call successors, (18622), 29 states have call predecessors, (18622), 33 states have return successors, (20813), 18620 states have call predecessors, (20813), 18621 states have call successors, (20813) [2022-12-13 11:16:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123431 states to 123431 states and 208014 transitions. [2022-12-13 11:16:56,065 INFO L78 Accepts]: Start accepts. Automaton has 123431 states and 208014 transitions. Word has length 139 [2022-12-13 11:16:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:56,066 INFO L495 AbstractCegarLoop]: Abstraction has 123431 states and 208014 transitions. [2022-12-13 11:16:56,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:16:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 123431 states and 208014 transitions. [2022-12-13 11:16:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-13 11:16:56,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:56,098 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:16:56,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 11:16:56,098 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:56,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:56,098 INFO L85 PathProgramCache]: Analyzing trace with hash 397812833, now seen corresponding path program 1 times [2022-12-13 11:16:56,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:16:56,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259384227] [2022-12-13 11:16:56,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:56,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:16:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:16:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:16:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:16:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:16:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:16:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:16:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:16:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:16:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:16:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:16:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 11:16:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 11:16:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 11:16:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 11:16:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:16:56,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:16:56,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259384227] [2022-12-13 11:16:56,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259384227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:56,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:56,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-13 11:16:56,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491445431] [2022-12-13 11:16:56,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:56,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 11:16:56,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:16:56,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 11:16:56,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:16:56,370 INFO L87 Difference]: Start difference. First operand 123431 states and 208014 transitions. Second operand has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-12-13 11:17:22,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:17:22,698 INFO L93 Difference]: Finished difference Result 247113 states and 428364 transitions. [2022-12-13 11:17:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-13 11:17:22,699 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 140 [2022-12-13 11:17:22,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:17:23,520 INFO L225 Difference]: With dead ends: 247113 [2022-12-13 11:17:23,520 INFO L226 Difference]: Without dead ends: 246856 [2022-12-13 11:17:23,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=872, Invalid=3820, Unknown=0, NotChecked=0, Total=4692 [2022-12-13 11:17:23,593 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 6910 mSDsluCounter, 3325 mSDsCounter, 0 mSdLazyCounter, 16126 mSolverCounterSat, 4312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6910 SdHoareTripleChecker+Valid, 3619 SdHoareTripleChecker+Invalid, 20438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4312 IncrementalHoareTripleChecker+Valid, 16126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:17:23,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6910 Valid, 3619 Invalid, 20438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4312 Valid, 16126 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-12-13 11:17:23,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246856 states. [2022-12-13 11:17:42,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246856 to 245931. [2022-12-13 11:17:42,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245931 states, 208783 states have (on average 1.6093312194958402) internal successors, (336001), 208693 states have internal predecessors, (336001), 37058 states have call successors, (37058), 78 states have call predecessors, (37058), 89 states have return successors, (44748), 37167 states have call predecessors, (44748), 37055 states have call successors, (44748) [2022-12-13 11:17:43,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245931 states to 245931 states and 417807 transitions. [2022-12-13 11:17:43,742 INFO L78 Accepts]: Start accepts. Automaton has 245931 states and 417807 transitions. Word has length 140 [2022-12-13 11:17:43,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:17:43,743 INFO L495 AbstractCegarLoop]: Abstraction has 245931 states and 417807 transitions. [2022-12-13 11:17:43,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-12-13 11:17:43,743 INFO L276 IsEmpty]: Start isEmpty. Operand 245931 states and 417807 transitions. [2022-12-13 11:17:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 11:17:43,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:17:43,826 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:17:43,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 11:17:43,826 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:17:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:17:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1434576529, now seen corresponding path program 1 times [2022-12-13 11:17:43,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:17:43,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197196235] [2022-12-13 11:17:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:17:43,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:17:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:17:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:17:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:17:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:17:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:17:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:17:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:17:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:17:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:17:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:17:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 11:17:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 11:17:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 11:17:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 11:17:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:17:44,096 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:17:44,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:17:44,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197196235] [2022-12-13 11:17:44,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197196235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:17:44,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:17:44,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 11:17:44,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064260073] [2022-12-13 11:17:44,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:17:44,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 11:17:44,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:17:44,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 11:17:44,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-12-13 11:17:44,099 INFO L87 Difference]: Start difference. First operand 245931 states and 417807 transitions. Second operand has 16 states, 16 states have (on average 6.0625) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-12-13 11:18:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:18:06,518 INFO L93 Difference]: Finished difference Result 248920 states and 429116 transitions. [2022-12-13 11:18:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 11:18:06,519 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.0625) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 141 [2022-12-13 11:18:06,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:18:07,276 INFO L225 Difference]: With dead ends: 248920 [2022-12-13 11:18:07,277 INFO L226 Difference]: Without dead ends: 247945 [2022-12-13 11:18:07,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 11:18:07,348 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 3686 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 8716 mSolverCounterSat, 1980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3705 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 10696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1980 IncrementalHoareTripleChecker+Valid, 8716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:18:07,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3705 Valid, 2464 Invalid, 10696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1980 Valid, 8716 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-13 11:18:07,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247945 states. [2022-12-13 11:18:27,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247945 to 246513. [2022-12-13 11:18:27,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246513 states, 209188 states have (on average 1.6088112128802798) internal successors, (336544), 209112 states have internal predecessors, (336544), 37227 states have call successors, (37227), 84 states have call predecessors, (37227), 97 states have return successors, (44952), 37332 states have call predecessors, (44952), 37218 states have call successors, (44952) [2022-12-13 11:18:28,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246513 states to 246513 states and 418723 transitions. [2022-12-13 11:18:28,276 INFO L78 Accepts]: Start accepts. Automaton has 246513 states and 418723 transitions. Word has length 141 [2022-12-13 11:18:28,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:18:28,276 INFO L495 AbstractCegarLoop]: Abstraction has 246513 states and 418723 transitions. [2022-12-13 11:18:28,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.0625) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-12-13 11:18:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 246513 states and 418723 transitions. [2022-12-13 11:18:28,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 11:18:28,341 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:18:28,341 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:18:28,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 11:18:28,342 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:18:28,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:18:28,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1789600799, now seen corresponding path program 1 times [2022-12-13 11:18:28,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:18:28,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117022527] [2022-12-13 11:18:28,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:18:28,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:18:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:18:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:18:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:18:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:18:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:18:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:18:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:18:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:18:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:18:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:18:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 11:18:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 11:18:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 11:18:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 11:18:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:18:28,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:18:28,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117022527] [2022-12-13 11:18:28,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117022527] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:18:28,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:18:28,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:18:28,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090929387] [2022-12-13 11:18:28,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:18:28,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:18:28,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:18:28,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:18:28,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:18:28,533 INFO L87 Difference]: Start difference. First operand 246513 states and 418723 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:19:03,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:19:03,010 INFO L93 Difference]: Finished difference Result 375810 states and 656805 transitions. [2022-12-13 11:19:03,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 11:19:03,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2022-12-13 11:19:03,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:19:04,476 INFO L225 Difference]: With dead ends: 375810 [2022-12-13 11:19:04,477 INFO L226 Difference]: Without dead ends: 374727 [2022-12-13 11:19:04,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2022-12-13 11:19:04,606 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 4785 mSDsluCounter, 1432 mSDsCounter, 0 mSdLazyCounter, 6293 mSolverCounterSat, 2392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4798 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 8685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2392 IncrementalHoareTripleChecker+Valid, 6293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:19:04,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4798 Valid, 1739 Invalid, 8685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2392 Valid, 6293 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-12-13 11:19:04,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374727 states. [2022-12-13 11:19:35,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374727 to 370901. [2022-12-13 11:19:36,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370901 states, 314549 states have (on average 1.608096035911734) internal successors, (505825), 314414 states have internal predecessors, (505825), 56116 states have call successors, (56116), 195 states have call predecessors, (56116), 235 states have return successors, (74849), 56335 states have call predecessors, (74849), 56092 states have call successors, (74849) [2022-12-13 11:19:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370901 states to 370901 states and 636790 transitions. [2022-12-13 11:19:37,593 INFO L78 Accepts]: Start accepts. Automaton has 370901 states and 636790 transitions. Word has length 141 [2022-12-13 11:19:37,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:19:37,593 INFO L495 AbstractCegarLoop]: Abstraction has 370901 states and 636790 transitions. [2022-12-13 11:19:37,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:19:37,594 INFO L276 IsEmpty]: Start isEmpty. Operand 370901 states and 636790 transitions. [2022-12-13 11:19:37,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 11:19:37,693 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:19:37,693 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 11:19:37,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 11:19:37,693 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:19:37,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:19:37,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1260602016, now seen corresponding path program 1 times [2022-12-13 11:19:37,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:19:37,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668849120] [2022-12-13 11:19:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:19:37,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:19:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:19:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:19:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:19:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:19:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:19:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:19:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:19:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:19:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:19:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:19:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 11:19:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 11:19:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 11:19:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 11:19:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 11:19:37,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:19:37,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668849120] [2022-12-13 11:19:37,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668849120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:19:37,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:19:37,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:19:37,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436451080] [2022-12-13 11:19:37,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:19:37,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:19:37,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:19:37,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:19:37,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:19:37,818 INFO L87 Difference]: Start difference. First operand 370901 states and 636790 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:20:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:20:10,136 INFO L93 Difference]: Finished difference Result 379574 states and 660274 transitions. [2022-12-13 11:20:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 11:20:10,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2022-12-13 11:20:10,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:20:11,428 INFO L225 Difference]: With dead ends: 379574 [2022-12-13 11:20:11,428 INFO L226 Difference]: Without dead ends: 375543 [2022-12-13 11:20:11,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-12-13 11:20:11,570 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 2501 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2518 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:20:11,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2518 Valid, 858 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [868 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 11:20:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375543 states. [2022-12-13 11:20:45,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375543 to 371557. [2022-12-13 11:20:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371557 states, 315040 states have (on average 1.6078847130523108) internal successors, (506548), 314938 states have internal predecessors, (506548), 56205 states have call successors, (56205), 265 states have call predecessors, (56205), 311 states have return successors, (74954), 56408 states have call predecessors, (74954), 56181 states have call successors, (74954) [2022-12-13 11:20:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371557 states to 371557 states and 637707 transitions. [2022-12-13 11:20:46,910 INFO L78 Accepts]: Start accepts. Automaton has 371557 states and 637707 transitions. Word has length 141 [2022-12-13 11:20:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:20:46,911 INFO L495 AbstractCegarLoop]: Abstraction has 371557 states and 637707 transitions. [2022-12-13 11:20:46,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 11:20:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 371557 states and 637707 transitions. [2022-12-13 11:20:48,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-12-13 11:20:48,194 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:20:48,194 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:20:48,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 11:20:48,195 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:20:48,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:20:48,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1015188142, now seen corresponding path program 1 times [2022-12-13 11:20:48,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:20:48,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729669230] [2022-12-13 11:20:48,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:20:48,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:20:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:20:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:20:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:20:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:20:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:20:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:20:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:20:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:20:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:20:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:20:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 11:20:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 11:20:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 11:20:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 11:20:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:20:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:20:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 11:20:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 11:20:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 11:20:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:20:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:20:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:20:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 11:20:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-12-13 11:20:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-12-13 11:20:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-12-13 11:20:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-12-13 11:20:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-12-13 11:20:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:20:48,410 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-12-13 11:20:48,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:20:48,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729669230] [2022-12-13 11:20:48,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729669230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:20:48,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:20:48,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:20:48,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129443405] [2022-12-13 11:20:48,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:20:48,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 11:20:48,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:20:48,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 11:20:48,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:20:48,411 INFO L87 Difference]: Start difference. First operand 371557 states and 637707 transitions. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 5 states have internal predecessors, (146), 3 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 11:21:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:21:54,227 INFO L93 Difference]: Finished difference Result 728906 states and 1273415 transitions. [2022-12-13 11:21:54,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 11:21:54,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 5 states have internal predecessors, (146), 3 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) Word has length 251 [2022-12-13 11:21:54,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:21:57,067 INFO L225 Difference]: With dead ends: 728906 [2022-12-13 11:21:57,067 INFO L226 Difference]: Without dead ends: 724282 [2022-12-13 11:21:57,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 11:21:57,356 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 4244 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 5879 mSolverCounterSat, 1844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4261 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 7723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1844 IncrementalHoareTripleChecker+Valid, 5879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:21:57,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4261 Valid, 1800 Invalid, 7723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1844 Valid, 5879 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-13 11:21:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724282 states. [2022-12-13 11:23:03,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724282 to 714930. [2022-12-13 11:23:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714930 states, 606080 states have (on average 1.6107279567053854) internal successors, (976230), 605855 states have internal predecessors, (976230), 108220 states have call successors, (108220), 527 states have call predecessors, (108220), 629 states have return successors, (145514), 108657 states have call predecessors, (145514), 108172 states have call successors, (145514) [2022-12-13 11:23:06,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714930 states to 714930 states and 1229964 transitions. [2022-12-13 11:23:06,874 INFO L78 Accepts]: Start accepts. Automaton has 714930 states and 1229964 transitions. Word has length 251 [2022-12-13 11:23:06,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:23:06,874 INFO L495 AbstractCegarLoop]: Abstraction has 714930 states and 1229964 transitions. [2022-12-13 11:23:06,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 5 states have internal predecessors, (146), 3 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 11:23:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 714930 states and 1229964 transitions. [2022-12-13 11:23:09,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-13 11:23:09,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:23:09,186 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:23:09,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 11:23:09,187 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:23:09,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:23:09,187 INFO L85 PathProgramCache]: Analyzing trace with hash -110772910, now seen corresponding path program 1 times [2022-12-13 11:23:09,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:23:09,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221043633] [2022-12-13 11:23:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:23:09,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:23:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:23:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:23:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:23:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:23:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:23:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:23:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:23:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:23:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 11:23:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 11:23:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:23:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 11:23:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 11:23:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 11:23:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:23:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:23:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:23:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 11:23:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:23:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 11:23:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 11:23:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:23:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 11:23:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-12-13 11:23:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-12-13 11:23:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-12-13 11:23:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-12-13 11:23:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-12-13 11:23:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,402 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-12-13 11:23:09,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:23:09,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221043633] [2022-12-13 11:23:09,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221043633] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:23:09,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719830141] [2022-12-13 11:23:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:23:09,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:23:09,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:23:09,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:23:09,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 11:23:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:09,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:23:09,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:23:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-12-13 11:23:09,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:23:09,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719830141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:23:09,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:23:09,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-12-13 11:23:09,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859252208] [2022-12-13 11:23:09,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:23:09,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:23:09,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:23:09,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:23:09,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:23:09,687 INFO L87 Difference]: Start difference. First operand 714930 states and 1229964 transitions. Second operand has 5 states, 4 states have (on average 35.75) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-13 11:24:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:24:08,363 INFO L93 Difference]: Finished difference Result 720176 states and 1237757 transitions. [2022-12-13 11:24:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:24:08,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 35.75) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 253 [2022-12-13 11:24:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:24:11,119 INFO L225 Difference]: With dead ends: 720176 [2022-12-13 11:24:11,120 INFO L226 Difference]: Without dead ends: 714962 [2022-12-13 11:24:11,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:24:11,360 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 7 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:24:11,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2704 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:24:11,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714962 states. [2022-12-13 11:25:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714962 to 714934. [2022-12-13 11:25:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714934 states, 606082 states have (on average 1.6107259413742694) internal successors, (976232), 605859 states have internal predecessors, (976232), 108220 states have call successors, (108220), 527 states have call predecessors, (108220), 631 states have return successors, (145512), 108657 states have call predecessors, (145512), 108172 states have call successors, (145512) [2022-12-13 11:25:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714934 states to 714934 states and 1229964 transitions. [2022-12-13 11:25:20,486 INFO L78 Accepts]: Start accepts. Automaton has 714934 states and 1229964 transitions. Word has length 253 [2022-12-13 11:25:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:25:20,486 INFO L495 AbstractCegarLoop]: Abstraction has 714934 states and 1229964 transitions. [2022-12-13 11:25:20,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 35.75) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-13 11:25:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 714934 states and 1229964 transitions. [2022-12-13 11:25:22,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-12-13 11:25:22,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:25:22,940 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:25:22,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 11:25:23,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe9dfbf-6246-4b64-9820-12549f8b2494/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 11:25:23,142 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:25:23,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:25:23,143 INFO L85 PathProgramCache]: Analyzing trace with hash -716123493, now seen corresponding path program 1 times [2022-12-13 11:25:23,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:25:23,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410449110] [2022-12-13 11:25:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:25:23,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:25:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 11:25:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:25:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 11:25:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 11:25:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:25:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:25:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 11:25:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 11:25:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 11:25:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 11:25:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 11:25:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 11:25:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 11:25:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 11:25:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:25:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:25:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 11:25:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 11:25:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 11:25:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 11:25:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:25:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 11:25:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 11:25:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-12-13 11:25:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-12-13 11:25:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 11:25:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-12-13 11:25:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-12-13 11:25:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:23,548 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-12-13 11:25:23,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:25:23,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410449110] [2022-12-13 11:25:23,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410449110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:25:23,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:25:23,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-13 11:25:23,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336549273] [2022-12-13 11:25:23,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:25:23,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 11:25:23,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:25:23,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 11:25:23,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:25:23,550 INFO L87 Difference]: Start difference. First operand 714934 states and 1229964 transitions. Second operand has 15 states, 14 states have (on average 10.5) internal successors, (147), 8 states have internal predecessors, (147), 6 states have call successors, (31), 9 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28)