./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL --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 e0e95c13964d33a58c84e6632b6635f09155542b4e87cc9520cc45bb7c6f5f1d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:29:09,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:29:09,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:29:09,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:29:09,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:29:09,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:29:09,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:29:09,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:29:09,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:29:09,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:29:09,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:29:09,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:29:09,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:29:09,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:29:09,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:29:09,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:29:09,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:29:09,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:29:09,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:29:09,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:29:09,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:29:09,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:29:09,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:29:09,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:29:09,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:29:09,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:29:09,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:29:09,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:29:09,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:29:09,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:29:09,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:29:09,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:29:09,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:29:09,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:29:09,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:29:09,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:29:09,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:29:09,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:29:09,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:29:09,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:29:09,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:29:09,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:29:10,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:29:10,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:29:10,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:29:10,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:29:10,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:29:10,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:29:10,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:29:10,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:29:10,036 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:29:10,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:29:10,036 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:29:10,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:29:10,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:29:10,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:29:10,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:29:10,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:29:10,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:29:10,044 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:29:10,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:29:10,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:29:10,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:29:10,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:29:10,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:29:10,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:29:10,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:29:10,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:29:10,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:29:10,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:29:10,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:29:10,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:29:10,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:29:10,051 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:29:10,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:29:10,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:29:10,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0e95c13964d33a58c84e6632b6635f09155542b4e87cc9520cc45bb7c6f5f1d [2021-11-19 05:29:10,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:29:10,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:29:10,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:29:10,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:29:10,401 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:29:10,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/product-lines/email_spec1_product20.cil.c [2021-11-19 05:29:10,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/data/91a81aa5d/124a5a779d914ff59c7012c2e4e20d82/FLAGfd28f9b03 [2021-11-19 05:29:11,107 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:29:11,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/sv-benchmarks/c/product-lines/email_spec1_product20.cil.c [2021-11-19 05:29:11,132 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/data/91a81aa5d/124a5a779d914ff59c7012c2e4e20d82/FLAGfd28f9b03 [2021-11-19 05:29:11,326 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/data/91a81aa5d/124a5a779d914ff59c7012c2e4e20d82 [2021-11-19 05:29:11,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:29:11,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:29:11,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:29:11,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:29:11,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:29:11,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:29:11" (1/1) ... [2021-11-19 05:29:11,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a5afed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:11, skipping insertion in model container [2021-11-19 05:29:11,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:29:11" (1/1) ... [2021-11-19 05:29:11,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:29:11,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:29:11,798 WARN L230 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_56cd4b0e-000c-4cd7-b429-60684ff8a431/sv-benchmarks/c/product-lines/email_spec1_product20.cil.c[17698,17711] [2021-11-19 05:29:12,001 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:29:12,013 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:29:12,062 WARN L230 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_56cd4b0e-000c-4cd7-b429-60684ff8a431/sv-benchmarks/c/product-lines/email_spec1_product20.cil.c[17698,17711] [2021-11-19 05:29:12,125 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:29:12,159 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:29:12,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12 WrapperNode [2021-11-19 05:29:12,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:29:12,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:29:12,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:29:12,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:29:12,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,293 INFO L137 Inliner]: procedures = 128, calls = 215, calls flagged for inlining = 55, calls inlined = 48, statements flattened = 953 [2021-11-19 05:29:12,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:29:12,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:29:12,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:29:12,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:29:12,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:29:12,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:29:12,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:29:12,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:29:12,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (1/1) ... [2021-11-19 05:29:12,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:29:12,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:29:12,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:29:12,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:29:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-11-19 05:29:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-11-19 05:29:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-19 05:29:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-19 05:29:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-11-19 05:29:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-11-19 05:29:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-19 05:29:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-19 05:29:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-19 05:29:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-19 05:29:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-11-19 05:29:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-11-19 05:29:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-19 05:29:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-19 05:29:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-19 05:29:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-19 05:29:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-19 05:29:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-19 05:29:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-19 05:29:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-19 05:29:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-19 05:29:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-19 05:29:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-19 05:29:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-19 05:29:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-19 05:29:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:29:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-11-19 05:29:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-11-19 05:29:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-19 05:29:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-19 05:29:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-19 05:29:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-19 05:29:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-19 05:29:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-19 05:29:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-19 05:29:12,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-19 05:29:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-19 05:29:12,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-19 05:29:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-19 05:29:12,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-19 05:29:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-19 05:29:12,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-19 05:29:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:29:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-19 05:29:12,524 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-19 05:29:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-11-19 05:29:12,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-11-19 05:29:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:29:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:29:12,739 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:29:12,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:29:13,674 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:29:13,696 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:29:13,696 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 05:29:13,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:29:13 BoogieIcfgContainer [2021-11-19 05:29:13,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:29:13,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:29:13,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:29:13,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:29:13,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:29:11" (1/3) ... [2021-11-19 05:29:13,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acd11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:29:13, skipping insertion in model container [2021-11-19 05:29:13,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:29:12" (2/3) ... [2021-11-19 05:29:13,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acd11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:29:13, skipping insertion in model container [2021-11-19 05:29:13,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:29:13" (3/3) ... [2021-11-19 05:29:13,712 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.c [2021-11-19 05:29:13,718 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:29:13,719 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:29:13,793 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:29:13,802 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:29:13,802 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:29:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 364 states, 286 states have (on average 1.5804195804195804) internal successors, (452), 291 states have internal predecessors, (452), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-19 05:29:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-19 05:29:13,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:13,881 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:13,882 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:13,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:13,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1074711796, now seen corresponding path program 1 times [2021-11-19 05:29:13,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:13,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710866264] [2021-11-19 05:29:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:13,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-19 05:29:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-19 05:29:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-19 05:29:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-19 05:29:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-19 05:29:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-19 05:29:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-19 05:29:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-19 05:29:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-19 05:29:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 05:29:14,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:14,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710866264] [2021-11-19 05:29:14,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710866264] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:29:14,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919326475] [2021-11-19 05:29:14,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:14,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:14,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:29:14,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:29:14,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 05:29:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:14,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 05:29:14,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:29:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 05:29:15,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:29:15,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919326475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:15,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:29:15,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-11-19 05:29:15,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310503546] [2021-11-19 05:29:15,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:15,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 05:29:15,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:15,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 05:29:15,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 05:29:15,176 INFO L87 Difference]: Start difference. First operand has 364 states, 286 states have (on average 1.5804195804195804) internal successors, (452), 291 states have internal predecessors, (452), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:15,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:15,274 INFO L93 Difference]: Finished difference Result 535 states and 810 transitions. [2021-11-19 05:29:15,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:29:15,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2021-11-19 05:29:15,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:15,310 INFO L225 Difference]: With dead ends: 535 [2021-11-19 05:29:15,310 INFO L226 Difference]: Without dead ends: 357 [2021-11-19 05:29:15,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 05:29:15,320 INFO L933 BasicCegarLoop]: 556 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, 556 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 [2021-11-19 05:29:15,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:29:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-11-19 05:29:15,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2021-11-19 05:29:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 280 states have (on average 1.575) internal successors, (441), 284 states have internal predecessors, (441), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-11-19 05:29:15,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 548 transitions. [2021-11-19 05:29:15,421 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 548 transitions. Word has length 98 [2021-11-19 05:29:15,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:15,424 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 548 transitions. [2021-11-19 05:29:15,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:15,426 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 548 transitions. [2021-11-19 05:29:15,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-19 05:29:15,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:15,437 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:15,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:29:15,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:15,655 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:15,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:15,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1362649769, now seen corresponding path program 1 times [2021-11-19 05:29:15,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:15,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747553980] [2021-11-19 05:29:15,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:15,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-19 05:29:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-19 05:29:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-19 05:29:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-19 05:29:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-19 05:29:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-19 05:29:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-19 05:29:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-19 05:29:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-19 05:29:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:15,869 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 05:29:15,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:15,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747553980] [2021-11-19 05:29:15,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747553980] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:29:15,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243164418] [2021-11-19 05:29:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:15,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:15,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:29:15,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:29:15,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 05:29:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:29:16,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:29:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 05:29:16,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:29:16,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243164418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:16,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:29:16,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-19 05:29:16,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443545009] [2021-11-19 05:29:16,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:16,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:29:16,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:16,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:29:16,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:29:16,385 INFO L87 Difference]: Start difference. First operand 357 states and 548 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:16,430 INFO L93 Difference]: Finished difference Result 525 states and 788 transitions. [2021-11-19 05:29:16,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:29:16,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2021-11-19 05:29:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:16,435 INFO L225 Difference]: With dead ends: 525 [2021-11-19 05:29:16,436 INFO L226 Difference]: Without dead ends: 360 [2021-11-19 05:29:16,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:29:16,439 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 1 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1090 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 [2021-11-19 05:29:16,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1090 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:29:16,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-19 05:29:16,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 359. [2021-11-19 05:29:16,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 282 states have (on average 1.570921985815603) internal successors, (443), 286 states have internal predecessors, (443), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-11-19 05:29:16,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 550 transitions. [2021-11-19 05:29:16,472 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 550 transitions. Word has length 99 [2021-11-19 05:29:16,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:16,472 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 550 transitions. [2021-11-19 05:29:16,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:16,473 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 550 transitions. [2021-11-19 05:29:16,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 05:29:16,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:16,492 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:16,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:29:16,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-19 05:29:16,707 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:16,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1211733761, now seen corresponding path program 1 times [2021-11-19 05:29:16,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:16,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455632355] [2021-11-19 05:29:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:16,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-19 05:29:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-19 05:29:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-19 05:29:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-19 05:29:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-19 05:29:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-19 05:29:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-19 05:29:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-19 05:29:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-19 05:29:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 05:29:16,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:16,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455632355] [2021-11-19 05:29:16,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455632355] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:29:16,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172225233] [2021-11-19 05:29:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:16,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:29:16,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:29:16,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 05:29:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:29:17,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:29:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 05:29:17,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:29:17,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172225233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:17,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:29:17,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-19 05:29:17,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633102661] [2021-11-19 05:29:17,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:17,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:29:17,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:17,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:29:17,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:29:17,413 INFO L87 Difference]: Start difference. First operand 359 states and 550 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:17,448 INFO L93 Difference]: Finished difference Result 766 states and 1192 transitions. [2021-11-19 05:29:17,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:29:17,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2021-11-19 05:29:17,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:17,453 INFO L225 Difference]: With dead ends: 766 [2021-11-19 05:29:17,453 INFO L226 Difference]: Without dead ends: 434 [2021-11-19 05:29:17,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:29:17,456 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 134 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1064 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 [2021-11-19 05:29:17,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1064 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:29:17,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-19 05:29:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 426. [2021-11-19 05:29:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 335 states have (on average 1.5880597014925373) internal successors, (532), 339 states have internal predecessors, (532), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2021-11-19 05:29:17,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 667 transitions. [2021-11-19 05:29:17,488 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 667 transitions. Word has length 108 [2021-11-19 05:29:17,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:17,489 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 667 transitions. [2021-11-19 05:29:17,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:17,489 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 667 transitions. [2021-11-19 05:29:17,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-19 05:29:17,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:17,493 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:17,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:29:17,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:17,709 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:17,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:17,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1466267754, now seen corresponding path program 1 times [2021-11-19 05:29:17,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:17,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240318061] [2021-11-19 05:29:17,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:17,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-19 05:29:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-19 05:29:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-19 05:29:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-19 05:29:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:29:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-19 05:29:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-19 05:29:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-19 05:29:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-19 05:29:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 05:29:17,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:17,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240318061] [2021-11-19 05:29:17,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240318061] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:29:17,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499191336] [2021-11-19 05:29:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:17,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:17,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:29:17,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:29:17,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 05:29:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:29:18,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:29:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 05:29:18,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:29:18,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499191336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:18,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:29:18,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-11-19 05:29:18,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536820875] [2021-11-19 05:29:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:18,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:29:18,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:29:18,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 05:29:18,395 INFO L87 Difference]: Start difference. First operand 426 states and 667 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 05:29:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:18,497 INFO L93 Difference]: Finished difference Result 843 states and 1324 transitions. [2021-11-19 05:29:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:29:18,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2021-11-19 05:29:18,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:18,503 INFO L225 Difference]: With dead ends: 843 [2021-11-19 05:29:18,504 INFO L226 Difference]: Without dead ends: 428 [2021-11-19 05:29:18,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:18,510 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 152 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:18,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1982 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:29:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-11-19 05:29:18,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2021-11-19 05:29:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 336 states have (on average 1.5863095238095237) internal successors, (533), 341 states have internal predecessors, (533), 68 states have call successors, (68), 22 states have call predecessors, (68), 23 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2021-11-19 05:29:18,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 670 transitions. [2021-11-19 05:29:18,564 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 670 transitions. Word has length 109 [2021-11-19 05:29:18,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:18,565 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 670 transitions. [2021-11-19 05:29:18,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 05:29:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 670 transitions. [2021-11-19 05:29:18,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-19 05:29:18,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:18,569 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:18,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:29:18,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:18,794 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash 390085889, now seen corresponding path program 1 times [2021-11-19 05:29:18,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:18,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023742124] [2021-11-19 05:29:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:18,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-19 05:29:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-19 05:29:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-19 05:29:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-19 05:29:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-19 05:29:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-19 05:29:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:18,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-19 05:29:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:19,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-19 05:29:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 05:29:19,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:19,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023742124] [2021-11-19 05:29:19,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023742124] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:29:19,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098249117] [2021-11-19 05:29:19,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:19,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:19,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:29:19,012 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:29:19,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 05:29:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:19,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:29:19,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:29:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 05:29:19,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:29:19,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098249117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:19,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:29:19,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-11-19 05:29:19,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104454197] [2021-11-19 05:29:19,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:19,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:29:19,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:19,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:29:19,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-11-19 05:29:19,593 INFO L87 Difference]: Start difference. First operand 428 states and 670 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 05:29:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:19,698 INFO L93 Difference]: Finished difference Result 845 states and 1329 transitions. [2021-11-19 05:29:19,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:29:19,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2021-11-19 05:29:19,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:19,704 INFO L225 Difference]: With dead ends: 845 [2021-11-19 05:29:19,705 INFO L226 Difference]: Without dead ends: 430 [2021-11-19 05:29:19,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-11-19 05:29:19,708 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 151 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:19,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1971 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:29:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-11-19 05:29:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-11-19 05:29:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 337 states have (on average 1.5845697329376855) internal successors, (534), 343 states have internal predecessors, (534), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2021-11-19 05:29:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 676 transitions. [2021-11-19 05:29:19,747 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 676 transitions. Word has length 110 [2021-11-19 05:29:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:19,748 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 676 transitions. [2021-11-19 05:29:19,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 05:29:19,748 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 676 transitions. [2021-11-19 05:29:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-19 05:29:19,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:19,755 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:19,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 05:29:19,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:19,978 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:19,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:19,978 INFO L85 PathProgramCache]: Analyzing trace with hash -399642323, now seen corresponding path program 1 times [2021-11-19 05:29:19,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:19,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512642413] [2021-11-19 05:29:19,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:19,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:29:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-19 05:29:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-19 05:29:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-19 05:29:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-19 05:29:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-19 05:29:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-19 05:29:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 05:29:20,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:20,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512642413] [2021-11-19 05:29:20,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512642413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:20,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:20,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-19 05:29:20,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275412469] [2021-11-19 05:29:20,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:20,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 05:29:20,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 05:29:20,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 05:29:20,143 INFO L87 Difference]: Start difference. First operand 430 states and 676 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 05:29:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:22,086 INFO L93 Difference]: Finished difference Result 948 states and 1513 transitions. [2021-11-19 05:29:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:29:22,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2021-11-19 05:29:22,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:22,094 INFO L225 Difference]: With dead ends: 948 [2021-11-19 05:29:22,094 INFO L226 Difference]: Without dead ends: 541 [2021-11-19 05:29:22,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-19 05:29:22,098 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1310 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:22,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1331 Valid, 1792 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 05:29:22,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2021-11-19 05:29:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 430. [2021-11-19 05:29:22,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 337 states have (on average 1.5845697329376855) internal successors, (534), 343 states have internal predecessors, (534), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2021-11-19 05:29:22,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 675 transitions. [2021-11-19 05:29:22,153 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 675 transitions. Word has length 111 [2021-11-19 05:29:22,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:22,155 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 675 transitions. [2021-11-19 05:29:22,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 05:29:22,155 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 675 transitions. [2021-11-19 05:29:22,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-19 05:29:22,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:22,160 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:22,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 05:29:22,160 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:22,161 INFO L85 PathProgramCache]: Analyzing trace with hash 159803682, now seen corresponding path program 2 times [2021-11-19 05:29:22,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:22,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713831373] [2021-11-19 05:29:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:22,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-19 05:29:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-19 05:29:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-19 05:29:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-19 05:29:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-19 05:29:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-19 05:29:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-19 05:29:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 05:29:22,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:22,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713831373] [2021-11-19 05:29:22,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713831373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:22,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:22,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-19 05:29:22,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441193859] [2021-11-19 05:29:22,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:22,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 05:29:22,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:22,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 05:29:22,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 05:29:22,310 INFO L87 Difference]: Start difference. First operand 430 states and 675 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 05:29:24,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:24,238 INFO L93 Difference]: Finished difference Result 950 states and 1516 transitions. [2021-11-19 05:29:24,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:29:24,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2021-11-19 05:29:24,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:24,245 INFO L225 Difference]: With dead ends: 950 [2021-11-19 05:29:24,246 INFO L226 Difference]: Without dead ends: 543 [2021-11-19 05:29:24,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-19 05:29:24,249 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 1303 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:24,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 1795 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 05:29:24,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-11-19 05:29:24,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 432. [2021-11-19 05:29:24,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 338 states have (on average 1.5828402366863905) internal successors, (535), 345 states have internal predecessors, (535), 68 states have call successors, (68), 22 states have call predecessors, (68), 25 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2021-11-19 05:29:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 678 transitions. [2021-11-19 05:29:24,322 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 678 transitions. Word has length 112 [2021-11-19 05:29:24,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:24,323 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 678 transitions. [2021-11-19 05:29:24,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 05:29:24,323 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 678 transitions. [2021-11-19 05:29:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-19 05:29:24,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:24,327 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:24,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 05:29:24,327 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:24,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:24,328 INFO L85 PathProgramCache]: Analyzing trace with hash 390424658, now seen corresponding path program 1 times [2021-11-19 05:29:24,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:24,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313477400] [2021-11-19 05:29:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:24,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-19 05:29:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-19 05:29:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-19 05:29:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-19 05:29:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-19 05:29:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-19 05:29:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 05:29:24,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:24,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313477400] [2021-11-19 05:29:24,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313477400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:24,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:24,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:29:24,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745041855] [2021-11-19 05:29:24,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:24,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 05:29:24,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:24,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 05:29:24,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-19 05:29:24,506 INFO L87 Difference]: Start difference. First operand 432 states and 678 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 05:29:27,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:27,049 INFO L93 Difference]: Finished difference Result 948 states and 1511 transitions. [2021-11-19 05:29:27,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 05:29:27,049 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2021-11-19 05:29:27,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:27,055 INFO L225 Difference]: With dead ends: 948 [2021-11-19 05:29:27,055 INFO L226 Difference]: Without dead ends: 543 [2021-11-19 05:29:27,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-11-19 05:29:27,058 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1443 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:27,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1443 Valid, 2317 Invalid, 3625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 05:29:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-11-19 05:29:27,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 432. [2021-11-19 05:29:27,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 338 states have (on average 1.5828402366863905) internal successors, (535), 345 states have internal predecessors, (535), 68 states have call successors, (68), 22 states have call predecessors, (68), 25 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2021-11-19 05:29:27,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 677 transitions. [2021-11-19 05:29:27,098 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 677 transitions. Word has length 113 [2021-11-19 05:29:27,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:27,099 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 677 transitions. [2021-11-19 05:29:27,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 05:29:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 677 transitions. [2021-11-19 05:29:27,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 05:29:27,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:27,102 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:27,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 05:29:27,103 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:27,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash -20138564, now seen corresponding path program 2 times [2021-11-19 05:29:27,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:27,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400908432] [2021-11-19 05:29:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:27,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:29:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-19 05:29:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-19 05:29:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-19 05:29:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-19 05:29:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-19 05:29:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 05:29:27,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:27,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400908432] [2021-11-19 05:29:27,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400908432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:27,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:27,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:29:27,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877686631] [2021-11-19 05:29:27,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:27,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 05:29:27,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:27,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 05:29:27,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-19 05:29:27,323 INFO L87 Difference]: Start difference. First operand 432 states and 677 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 05:29:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:29,846 INFO L93 Difference]: Finished difference Result 950 states and 1517 transitions. [2021-11-19 05:29:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 05:29:29,846 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2021-11-19 05:29:29,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:29,852 INFO L225 Difference]: With dead ends: 950 [2021-11-19 05:29:29,852 INFO L226 Difference]: Without dead ends: 545 [2021-11-19 05:29:29,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-11-19 05:29:29,857 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 1435 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 3176 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 3176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:29,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 2334 Invalid, 3671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 3176 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 05:29:29,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-11-19 05:29:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 434. [2021-11-19 05:29:29,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 339 states have (on average 1.5811209439528024) internal successors, (536), 347 states have internal predecessors, (536), 68 states have call successors, (68), 22 states have call predecessors, (68), 26 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2021-11-19 05:29:29,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 683 transitions. [2021-11-19 05:29:29,896 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 683 transitions. Word has length 114 [2021-11-19 05:29:29,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:29,898 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 683 transitions. [2021-11-19 05:29:29,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 05:29:29,898 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 683 transitions. [2021-11-19 05:29:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-19 05:29:29,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:29,903 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:29,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 05:29:29,903 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:29,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:29,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2013894103, now seen corresponding path program 1 times [2021-11-19 05:29:29,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:29,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600256519] [2021-11-19 05:29:29,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:29,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:29,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:29,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-19 05:29:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:29:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:29:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-19 05:29:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-19 05:29:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-19 05:29:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 05:29:30,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:30,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600256519] [2021-11-19 05:29:30,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600256519] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:29:30,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944907599] [2021-11-19 05:29:30,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:30,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:29:30,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:29:30,106 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:29:30,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 05:29:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:30,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:29:30,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:29:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:30,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:29:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:30,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944907599] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:29:30,860 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:29:30,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-11-19 05:29:30,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272651080] [2021-11-19 05:29:30,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:29:30,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 05:29:30,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:30,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 05:29:30,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-19 05:29:30,863 INFO L87 Difference]: Start difference. First operand 434 states and 683 transitions. Second operand has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-19 05:29:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:34,959 INFO L93 Difference]: Finished difference Result 1809 states and 3075 transitions. [2021-11-19 05:29:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 05:29:34,959 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 115 [2021-11-19 05:29:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:34,971 INFO L225 Difference]: With dead ends: 1809 [2021-11-19 05:29:34,972 INFO L226 Difference]: Without dead ends: 1406 [2021-11-19 05:29:34,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-11-19 05:29:34,975 INFO L933 BasicCegarLoop]: 789 mSDtfsCounter, 3188 mSDsluCounter, 3912 mSDsCounter, 0 mSdLazyCounter, 5304 mSolverCounterSat, 1242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 4701 SdHoareTripleChecker+Invalid, 6546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 5304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:34,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3190 Valid, 4701 Invalid, 6546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1242 Valid, 5304 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-19 05:29:34,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2021-11-19 05:29:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 852. [2021-11-19 05:29:35,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 678 states have (on average 1.6253687315634218) internal successors, (1102), 686 states have internal predecessors, (1102), 147 states have call successors, (147), 22 states have call predecessors, (147), 26 states have return successors, (168), 145 states have call predecessors, (168), 146 states have call successors, (168) [2021-11-19 05:29:35,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1417 transitions. [2021-11-19 05:29:35,057 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1417 transitions. Word has length 115 [2021-11-19 05:29:35,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:35,058 INFO L470 AbstractCegarLoop]: Abstraction has 852 states and 1417 transitions. [2021-11-19 05:29:35,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-19 05:29:35,058 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1417 transitions. [2021-11-19 05:29:35,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-19 05:29:35,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:35,064 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:35,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-19 05:29:35,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cd4b0e-000c-4cd7-b429-60684ff8a431/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-19 05:29:35,290 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:35,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:35,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2012691047, now seen corresponding path program 1 times [2021-11-19 05:29:35,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:35,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223207535] [2021-11-19 05:29:35,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:35,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-19 05:29:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-19 05:29:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-19 05:29:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-19 05:29:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-19 05:29:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-19 05:29:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:35,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:35,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:35,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223207535] [2021-11-19 05:29:35,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223207535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:35,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:35,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:35,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945959186] [2021-11-19 05:29:35,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:35,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:35,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:35,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:35,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:35,428 INFO L87 Difference]: Start difference. First operand 852 states and 1417 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:36,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:36,855 INFO L93 Difference]: Finished difference Result 2135 states and 3643 transitions. [2021-11-19 05:29:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:29:36,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-11-19 05:29:36,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:36,868 INFO L225 Difference]: With dead ends: 2135 [2021-11-19 05:29:36,868 INFO L226 Difference]: Without dead ends: 1361 [2021-11-19 05:29:36,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:36,873 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 1299 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:36,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1317 Valid, 1542 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 05:29:36,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2021-11-19 05:29:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1242. [2021-11-19 05:29:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 989 states have (on average 1.6400404448938322) internal successors, (1622), 997 states have internal predecessors, (1622), 226 states have call successors, (226), 22 states have call predecessors, (226), 26 states have return successors, (257), 224 states have call predecessors, (257), 225 states have call successors, (257) [2021-11-19 05:29:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 2105 transitions. [2021-11-19 05:29:36,980 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 2105 transitions. Word has length 118 [2021-11-19 05:29:36,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:36,981 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 2105 transitions. [2021-11-19 05:29:36,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 2105 transitions. [2021-11-19 05:29:36,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-19 05:29:36,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:36,990 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:36,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-19 05:29:36,990 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:36,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:36,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1205053595, now seen corresponding path program 1 times [2021-11-19 05:29:36,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:36,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835250857] [2021-11-19 05:29:36,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:36,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-19 05:29:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-19 05:29:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-19 05:29:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-19 05:29:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-19 05:29:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-19 05:29:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:37,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:37,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835250857] [2021-11-19 05:29:37,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835250857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:37,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:37,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:37,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338980530] [2021-11-19 05:29:37,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:37,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:37,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:37,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:37,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:37,127 INFO L87 Difference]: Start difference. First operand 1242 states and 2105 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:38,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:38,519 INFO L93 Difference]: Finished difference Result 3109 states and 5352 transitions. [2021-11-19 05:29:38,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:29:38,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-11-19 05:29:38,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:38,536 INFO L225 Difference]: With dead ends: 3109 [2021-11-19 05:29:38,536 INFO L226 Difference]: Without dead ends: 1998 [2021-11-19 05:29:38,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:38,544 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 1296 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:38,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 1489 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 05:29:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2021-11-19 05:29:38,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1879. [2021-11-19 05:29:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1507 states have (on average 1.645653616456536) internal successors, (2480), 1515 states have internal predecessors, (2480), 345 states have call successors, (345), 22 states have call predecessors, (345), 26 states have return successors, (376), 343 states have call predecessors, (376), 344 states have call successors, (376) [2021-11-19 05:29:38,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 3201 transitions. [2021-11-19 05:29:38,729 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 3201 transitions. Word has length 119 [2021-11-19 05:29:38,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:38,730 INFO L470 AbstractCegarLoop]: Abstraction has 1879 states and 3201 transitions. [2021-11-19 05:29:38,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:38,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 3201 transitions. [2021-11-19 05:29:38,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 05:29:38,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:38,741 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:38,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-19 05:29:38,742 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:38,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:38,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1672555445, now seen corresponding path program 1 times [2021-11-19 05:29:38,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:38,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169137055] [2021-11-19 05:29:38,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:38,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:29:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-19 05:29:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-19 05:29:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-19 05:29:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-19 05:29:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-19 05:29:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:38,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:38,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169137055] [2021-11-19 05:29:38,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169137055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:38,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:38,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:38,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743764790] [2021-11-19 05:29:38,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:38,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:38,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:38,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:38,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:38,851 INFO L87 Difference]: Start difference. First operand 1879 states and 3201 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:40,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:40,282 INFO L93 Difference]: Finished difference Result 4589 states and 7963 transitions. [2021-11-19 05:29:40,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:29:40,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-11-19 05:29:40,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:40,307 INFO L225 Difference]: With dead ends: 4589 [2021-11-19 05:29:40,307 INFO L226 Difference]: Without dead ends: 2976 [2021-11-19 05:29:40,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:40,317 INFO L933 BasicCegarLoop]: 632 mSDtfsCounter, 1291 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:40,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 1497 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 05:29:40,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-11-19 05:29:40,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2857. [2021-11-19 05:29:40,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2323 states have (on average 1.6504520017219113) internal successors, (3834), 2331 states have internal predecessors, (3834), 507 states have call successors, (507), 22 states have call predecessors, (507), 26 states have return successors, (554), 505 states have call predecessors, (554), 506 states have call successors, (554) [2021-11-19 05:29:40,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4895 transitions. [2021-11-19 05:29:40,567 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 4895 transitions. Word has length 120 [2021-11-19 05:29:40,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:40,567 INFO L470 AbstractCegarLoop]: Abstraction has 2857 states and 4895 transitions. [2021-11-19 05:29:40,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:40,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 4895 transitions. [2021-11-19 05:29:40,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 05:29:40,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:40,583 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:40,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-19 05:29:40,583 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:40,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:40,584 INFO L85 PathProgramCache]: Analyzing trace with hash 831887386, now seen corresponding path program 1 times [2021-11-19 05:29:40,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:40,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322029684] [2021-11-19 05:29:40,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:40,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-19 05:29:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-19 05:29:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-19 05:29:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-19 05:29:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-19 05:29:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-19 05:29:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:40,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:40,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322029684] [2021-11-19 05:29:40,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322029684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:40,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:40,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:40,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168568295] [2021-11-19 05:29:40,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:40,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:40,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:40,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:40,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:40,694 INFO L87 Difference]: Start difference. First operand 2857 states and 4895 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:42,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:42,079 INFO L93 Difference]: Finished difference Result 6928 states and 12098 transitions. [2021-11-19 05:29:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:29:42,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-11-19 05:29:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:42,121 INFO L225 Difference]: With dead ends: 6928 [2021-11-19 05:29:42,121 INFO L226 Difference]: Without dead ends: 4556 [2021-11-19 05:29:42,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:42,134 INFO L933 BasicCegarLoop]: 630 mSDtfsCounter, 1290 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:42,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1308 Valid, 1494 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 05:29:42,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2021-11-19 05:29:42,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 4437. [2021-11-19 05:29:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3658 states have (on average 1.6539092400218698) internal successors, (6050), 3666 states have internal predecessors, (6050), 752 states have call successors, (752), 22 states have call predecessors, (752), 26 states have return successors, (825), 750 states have call predecessors, (825), 751 states have call successors, (825) [2021-11-19 05:29:42,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 7627 transitions. [2021-11-19 05:29:42,548 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 7627 transitions. Word has length 121 [2021-11-19 05:29:42,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:42,548 INFO L470 AbstractCegarLoop]: Abstraction has 4437 states and 7627 transitions. [2021-11-19 05:29:42,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:42,549 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 7627 transitions. [2021-11-19 05:29:42,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-19 05:29:42,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:42,567 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:42,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-19 05:29:42,567 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:42,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:42,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1968485775, now seen corresponding path program 1 times [2021-11-19 05:29:42,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:42,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544090525] [2021-11-19 05:29:42,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:42,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-19 05:29:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-19 05:29:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-19 05:29:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-19 05:29:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-19 05:29:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-19 05:29:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:42,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:42,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544090525] [2021-11-19 05:29:42,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544090525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:42,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:42,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:42,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280721144] [2021-11-19 05:29:42,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:42,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:42,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:42,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:42,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:42,712 INFO L87 Difference]: Start difference. First operand 4437 states and 7627 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:44,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:44,370 INFO L93 Difference]: Finished difference Result 11099 states and 19427 transitions. [2021-11-19 05:29:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:29:44,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-11-19 05:29:44,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:44,431 INFO L225 Difference]: With dead ends: 11099 [2021-11-19 05:29:44,432 INFO L226 Difference]: Without dead ends: 7399 [2021-11-19 05:29:44,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:44,448 INFO L933 BasicCegarLoop]: 642 mSDtfsCounter, 1291 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:44,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 1544 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 05:29:44,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2021-11-19 05:29:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 7280. [2021-11-19 05:29:45,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7280 states, 6008 states have (on average 1.6493009320905458) internal successors, (9909), 6016 states have internal predecessors, (9909), 1245 states have call successors, (1245), 22 states have call predecessors, (1245), 26 states have return successors, (1362), 1243 states have call predecessors, (1362), 1244 states have call successors, (1362) [2021-11-19 05:29:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7280 states to 7280 states and 12516 transitions. [2021-11-19 05:29:45,211 INFO L78 Accepts]: Start accepts. Automaton has 7280 states and 12516 transitions. Word has length 122 [2021-11-19 05:29:45,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:45,212 INFO L470 AbstractCegarLoop]: Abstraction has 7280 states and 12516 transitions. [2021-11-19 05:29:45,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7280 states and 12516 transitions. [2021-11-19 05:29:45,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-19 05:29:45,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:45,234 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:45,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-19 05:29:45,235 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:45,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:45,235 INFO L85 PathProgramCache]: Analyzing trace with hash -871406890, now seen corresponding path program 1 times [2021-11-19 05:29:45,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:45,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616583773] [2021-11-19 05:29:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:45,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-19 05:29:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-19 05:29:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-19 05:29:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-19 05:29:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-19 05:29:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-19 05:29:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:45,351 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:45,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:45,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616583773] [2021-11-19 05:29:45,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616583773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:45,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:45,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:45,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177316802] [2021-11-19 05:29:45,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:45,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:45,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:45,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:45,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:45,354 INFO L87 Difference]: Start difference. First operand 7280 states and 12516 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:47,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:47,289 INFO L93 Difference]: Finished difference Result 18519 states and 32391 transitions. [2021-11-19 05:29:47,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:29:47,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-11-19 05:29:47,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:47,347 INFO L225 Difference]: With dead ends: 18519 [2021-11-19 05:29:47,347 INFO L226 Difference]: Without dead ends: 12378 [2021-11-19 05:29:47,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:47,368 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 1285 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:47,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 1501 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 05:29:47,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12378 states. [2021-11-19 05:29:48,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12378 to 12259. [2021-11-19 05:29:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12259 states, 10165 states have (on average 1.64879488440728) internal successors, (16760), 10173 states have internal predecessors, (16760), 2067 states have call successors, (2067), 22 states have call predecessors, (2067), 26 states have return successors, (2262), 2065 states have call predecessors, (2262), 2066 states have call successors, (2262) [2021-11-19 05:29:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12259 states to 12259 states and 21089 transitions. [2021-11-19 05:29:48,360 INFO L78 Accepts]: Start accepts. Automaton has 12259 states and 21089 transitions. Word has length 123 [2021-11-19 05:29:48,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:48,360 INFO L470 AbstractCegarLoop]: Abstraction has 12259 states and 21089 transitions. [2021-11-19 05:29:48,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:48,361 INFO L276 IsEmpty]: Start isEmpty. Operand 12259 states and 21089 transitions. [2021-11-19 05:29:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-19 05:29:48,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:48,387 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:48,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-19 05:29:48,387 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:48,388 INFO L85 PathProgramCache]: Analyzing trace with hash 407931853, now seen corresponding path program 1 times [2021-11-19 05:29:48,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:48,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897152633] [2021-11-19 05:29:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:48,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-19 05:29:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:29:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-19 05:29:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-19 05:29:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-19 05:29:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-19 05:29:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:48,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:48,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897152633] [2021-11-19 05:29:48,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897152633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:48,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:48,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:48,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111570609] [2021-11-19 05:29:48,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:48,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:48,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:48,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:48,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:48,505 INFO L87 Difference]: Start difference. First operand 12259 states and 21089 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:50,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:50,703 INFO L93 Difference]: Finished difference Result 29477 states and 51251 transitions. [2021-11-19 05:29:50,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:29:50,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-11-19 05:29:50,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:50,813 INFO L225 Difference]: With dead ends: 29477 [2021-11-19 05:29:50,813 INFO L226 Difference]: Without dead ends: 19331 [2021-11-19 05:29:50,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:50,856 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 1286 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:50,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 1466 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 05:29:50,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19331 states. [2021-11-19 05:29:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19331 to 19212. [2021-11-19 05:29:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19212 states, 15915 states have (on average 1.6229971724787935) internal successors, (25830), 15923 states have internal predecessors, (25830), 3270 states have call successors, (3270), 22 states have call predecessors, (3270), 26 states have return successors, (3609), 3268 states have call predecessors, (3609), 3269 states have call successors, (3609) [2021-11-19 05:29:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19212 states to 19212 states and 32709 transitions. [2021-11-19 05:29:52,355 INFO L78 Accepts]: Start accepts. Automaton has 19212 states and 32709 transitions. Word has length 124 [2021-11-19 05:29:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:52,356 INFO L470 AbstractCegarLoop]: Abstraction has 19212 states and 32709 transitions. [2021-11-19 05:29:52,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 19212 states and 32709 transitions. [2021-11-19 05:29:52,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-19 05:29:52,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:52,385 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:52,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-19 05:29:52,386 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:52,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:52,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1687130805, now seen corresponding path program 1 times [2021-11-19 05:29:52,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:52,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741703275] [2021-11-19 05:29:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:52,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-19 05:29:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-19 05:29:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-19 05:29:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-19 05:29:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-19 05:29:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-19 05:29:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:52,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:52,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741703275] [2021-11-19 05:29:52,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741703275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:52,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:52,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:52,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719510271] [2021-11-19 05:29:52,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:52,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:52,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:52,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:52,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:52,502 INFO L87 Difference]: Start difference. First operand 19212 states and 32709 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:29:56,007 INFO L93 Difference]: Finished difference Result 50909 states and 88169 transitions. [2021-11-19 05:29:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:29:56,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-11-19 05:29:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:29:56,193 INFO L225 Difference]: With dead ends: 50909 [2021-11-19 05:29:56,194 INFO L226 Difference]: Without dead ends: 34452 [2021-11-19 05:29:56,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:29:56,251 INFO L933 BasicCegarLoop]: 632 mSDtfsCounter, 1284 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 05:29:56,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 1502 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-19 05:29:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34452 states. [2021-11-19 05:29:58,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34452 to 34333. [2021-11-19 05:29:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34333 states, 28586 states have (on average 1.6195340376408032) internal successors, (46296), 28594 states have internal predecessors, (46296), 5720 states have call successors, (5720), 22 states have call predecessors, (5720), 26 states have return successors, (6333), 5718 states have call predecessors, (6333), 5719 states have call successors, (6333) [2021-11-19 05:29:59,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34333 states to 34333 states and 58349 transitions. [2021-11-19 05:29:59,111 INFO L78 Accepts]: Start accepts. Automaton has 34333 states and 58349 transitions. Word has length 125 [2021-11-19 05:29:59,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:29:59,112 INFO L470 AbstractCegarLoop]: Abstraction has 34333 states and 58349 transitions. [2021-11-19 05:29:59,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:29:59,112 INFO L276 IsEmpty]: Start isEmpty. Operand 34333 states and 58349 transitions. [2021-11-19 05:29:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 05:29:59,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:29:59,138 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:29:59,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-19 05:29:59,138 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:29:59,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:29:59,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1119939571, now seen corresponding path program 1 times [2021-11-19 05:29:59,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:29:59,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598753069] [2021-11-19 05:29:59,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:29:59,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:29:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:29:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:29:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:29:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:29:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:29:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:29:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-19 05:29:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-19 05:29:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-19 05:29:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-19 05:29:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-19 05:29:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-19 05:29:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:29:59,249 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:29:59,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:29:59,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598753069] [2021-11-19 05:29:59,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598753069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:29:59,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:29:59,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:29:59,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151011185] [2021-11-19 05:29:59,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:29:59,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:29:59,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:29:59,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:29:59,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:29:59,252 INFO L87 Difference]: Start difference. First operand 34333 states and 58349 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:30:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:30:03,920 INFO L93 Difference]: Finished difference Result 93781 states and 161568 transitions. [2021-11-19 05:30:03,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:30:03,920 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2021-11-19 05:30:03,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:30:04,191 INFO L225 Difference]: With dead ends: 93781 [2021-11-19 05:30:04,192 INFO L226 Difference]: Without dead ends: 63119 [2021-11-19 05:30:04,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:30:04,275 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 1280 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:30:04,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1298 Valid, 1506 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 05:30:04,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63119 states. [2021-11-19 05:30:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63119 to 63000. [2021-11-19 05:30:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63000 states, 52740 states have (on average 1.6151118695487297) internal successors, (85181), 52748 states have internal predecessors, (85181), 10233 states have call successors, (10233), 22 states have call predecessors, (10233), 26 states have return successors, (11378), 10231 states have call predecessors, (11378), 10232 states have call successors, (11378) [2021-11-19 05:30:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63000 states to 63000 states and 106792 transitions. [2021-11-19 05:30:08,742 INFO L78 Accepts]: Start accepts. Automaton has 63000 states and 106792 transitions. Word has length 126 [2021-11-19 05:30:08,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:30:08,743 INFO L470 AbstractCegarLoop]: Abstraction has 63000 states and 106792 transitions. [2021-11-19 05:30:08,743 INFO L471 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:30:08,743 INFO L276 IsEmpty]: Start isEmpty. Operand 63000 states and 106792 transitions. [2021-11-19 05:30:08,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 05:30:08,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:30:08,770 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:30:08,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-19 05:30:08,771 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:30:08,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:30:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1352210411, now seen corresponding path program 1 times [2021-11-19 05:30:08,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:30:08,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693875385] [2021-11-19 05:30:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:30:08,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:30:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:30:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 05:30:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 05:30:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 05:30:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:30:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-19 05:30:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-19 05:30:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-19 05:30:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-19 05:30:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-19 05:30:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-19 05:30:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-19 05:30:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:30:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 05:30:08,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:30:08,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693875385] [2021-11-19 05:30:08,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693875385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:30:08,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:30:08,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:30:08,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270938544] [2021-11-19 05:30:08,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:30:08,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:30:08,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:30:08,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:30:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:30:08,901 INFO L87 Difference]: Start difference. First operand 63000 states and 106792 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:30:15,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:30:15,859 INFO L93 Difference]: Finished difference Result 118157 states and 203945 transitions. [2021-11-19 05:30:15,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:30:15,860 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2021-11-19 05:30:15,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:30:16,272 INFO L225 Difference]: With dead ends: 118157 [2021-11-19 05:30:16,272 INFO L226 Difference]: Without dead ends: 117992 [2021-11-19 05:30:16,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:30:16,313 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 1283 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:30:16,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 1486 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 05:30:16,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117992 states. [2021-11-19 05:30:23,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117992 to 117873. [2021-11-19 05:30:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117873 states, 99245 states have (on average 1.6096428031638874) internal successors, (159749), 99253 states have internal predecessors, (159749), 18601 states have call successors, (18601), 22 states have call predecessors, (18601), 26 states have return successors, (20792), 18599 states have call predecessors, (20792), 18600 states have call successors, (20792)