./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF --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 5be9e48e11f5f92f9ccb04262780ea6fa0bae40b757b81b8e52fca7547f54831 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:41:14,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:41:14,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:41:14,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:41:14,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:41:14,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:41:14,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:41:14,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:41:14,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:41:14,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:41:14,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:41:14,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:41:14,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:41:14,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:41:14,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:41:14,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:41:14,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:41:14,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:41:14,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:41:14,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:41:14,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:41:14,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:41:14,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:41:14,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:41:14,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:41:14,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:41:14,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:41:14,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:41:14,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:41:14,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:41:14,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:41:14,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:41:14,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:41:14,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:41:14,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:41:14,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:41:14,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:41:14,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:41:14,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:41:14,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:41:14,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:41:14,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:41:14,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:41:14,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:41:14,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:41:14,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:41:14,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:41:14,986 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:41:14,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:41:14,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:41:14,987 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:41:14,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:41:14,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:41:14,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:41:14,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:41:14,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:41:14,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:41:14,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:41:14,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:41:14,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:41:14,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:41:14,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:41:14,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:41:14,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:41:14,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:41:14,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:41:14,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:41:14,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:41:14,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:41:14,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:41:14,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:41:14,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:41:14,992 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:41:14,993 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:41:14,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:41:14,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:41:14,993 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_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5be9e48e11f5f92f9ccb04262780ea6fa0bae40b757b81b8e52fca7547f54831 [2021-11-20 06:41:15,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:41:15,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:41:15,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:41:15,300 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:41:15,304 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:41:15,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c [2021-11-20 06:41:15,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/data/2d876cd5f/691fe9c039be4fd78a70dc7cdc7759d5/FLAGc36c7dac9 [2021-11-20 06:41:15,954 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:41:15,955 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c [2021-11-20 06:41:15,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/data/2d876cd5f/691fe9c039be4fd78a70dc7cdc7759d5/FLAGc36c7dac9 [2021-11-20 06:41:16,222 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/data/2d876cd5f/691fe9c039be4fd78a70dc7cdc7759d5 [2021-11-20 06:41:16,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:41:16,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:41:16,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:41:16,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:41:16,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:41:16,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:41:16" (1/1) ... [2021-11-20 06:41:16,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26399885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:16, skipping insertion in model container [2021-11-20 06:41:16,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:41:16" (1/1) ... [2021-11-20 06:41:16,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:41:16,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:41:16,681 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_6f779fef-eeea-4148-be80-c44a112df0d5/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c[14808,14821] [2021-11-20 06:41:16,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:41:16,855 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:41:16,923 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_6f779fef-eeea-4148-be80-c44a112df0d5/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c[14808,14821] [2021-11-20 06:41:17,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:41:17,076 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:41:17,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17 WrapperNode [2021-11-20 06:41:17,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:41:17,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:41:17,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:41:17,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:41:17,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,224 INFO L137 Inliner]: procedures = 132, calls = 230, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1109 [2021-11-20 06:41:17,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:41:17,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:41:17,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:41:17,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:41:17,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:41:17,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:41:17,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:41:17,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:41:17,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (1/1) ... [2021-11-20 06:41:17,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:41:17,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:41:17,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:41:17,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:41:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-11-20 06:41:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-11-20 06:41:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-20 06:41:17,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-20 06:41:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-11-20 06:41:17,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-11-20 06:41:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-20 06:41:17,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-20 06:41:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-20 06:41:17,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-20 06:41:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-11-20 06:41:17,455 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-11-20 06:41:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-20 06:41:17,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-20 06:41:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-20 06:41:17,455 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-20 06:41:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-20 06:41:17,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-20 06:41:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-20 06:41:17,456 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-20 06:41:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-20 06:41:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-20 06:41:17,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-20 06:41:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-20 06:41:17,456 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-20 06:41:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-20 06:41:17,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-20 06:41:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:41:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-11-20 06:41:17,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-11-20 06:41:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-20 06:41:17,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-20 06:41:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-20 06:41:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-20 06:41:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-20 06:41:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-20 06:41:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-20 06:41:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-20 06:41:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-20 06:41:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-20 06:41:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-20 06:41:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-20 06:41:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-20 06:41:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-20 06:41:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:41:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-20 06:41:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-20 06:41:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-11-20 06:41:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-11-20 06:41:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:41:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:41:17,680 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:41:17,682 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:41:18,626 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:41:18,646 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:41:18,646 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:41:18,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:41:18 BoogieIcfgContainer [2021-11-20 06:41:18,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:41:18,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:41:18,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:41:18,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:41:18,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:41:16" (1/3) ... [2021-11-20 06:41:18,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ae9f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:41:18, skipping insertion in model container [2021-11-20 06:41:18,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:41:17" (2/3) ... [2021-11-20 06:41:18,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ae9f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:41:18, skipping insertion in model container [2021-11-20 06:41:18,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:41:18" (3/3) ... [2021-11-20 06:41:18,661 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product26.cil.c [2021-11-20 06:41:18,670 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:41:18,671 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:41:18,742 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:41:18,752 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 [2021-11-20 06:41:18,753 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:41:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 313 states have (on average 1.5623003194888179) internal successors, (489), 318 states have internal predecessors, (489), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2021-11-20 06:41:18,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 06:41:18,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:18,820 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] [2021-11-20 06:41:18,821 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:18,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:18,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1772077766, now seen corresponding path program 1 times [2021-11-20 06:41:18,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:18,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706619270] [2021-11-20 06:41:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:18,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:41:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:41:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:41:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:41:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 06:41:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 06:41:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 06:41:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-20 06:41:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:41:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-20 06:41:19,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:19,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706619270] [2021-11-20 06:41:19,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706619270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:41:19,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033339584] [2021-11-20 06:41:19,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:19,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:19,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:41:19,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:41:19,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:41:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:19,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 06:41:19,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:41:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 06:41:20,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:41:20,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033339584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:20,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:41:20,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-11-20 06:41:20,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931758486] [2021-11-20 06:41:20,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:20,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:41:20,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:20,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:41:20,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:41:20,055 INFO L87 Difference]: Start difference. First operand has 400 states, 313 states have (on average 1.5623003194888179) internal successors, (489), 318 states have internal predecessors, (489), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) 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) [2021-11-20 06:41:20,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:20,165 INFO L93 Difference]: Finished difference Result 602 states and 908 transitions. [2021-11-20 06:41:20,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:41:20,167 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 [2021-11-20 06:41:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:20,188 INFO L225 Difference]: With dead ends: 602 [2021-11-20 06:41:20,188 INFO L226 Difference]: Without dead ends: 393 [2021-11-20 06:41:20,196 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 [2021-11-20 06:41:20,200 INFO L933 BasicCegarLoop]: 609 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, 609 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 [2021-11-20 06:41:20,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:41:20,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-11-20 06:41:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2021-11-20 06:41:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 307 states have (on average 1.5570032573289903) internal successors, (478), 311 states have internal predecessors, (478), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-11-20 06:41:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2021-11-20 06:41:20,294 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 98 [2021-11-20 06:41:20,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:20,296 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2021-11-20 06:41:20,297 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) [2021-11-20 06:41:20,297 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2021-11-20 06:41:20,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-20 06:41:20,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:20,314 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] [2021-11-20 06:41:20,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:41:20,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-20 06:41:20,515 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:20,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:20,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1213717743, now seen corresponding path program 1 times [2021-11-20 06:41:20,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:20,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680352346] [2021-11-20 06:41:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:20,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:41:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:41:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:41:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:41:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 06:41:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:41:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:41:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:41:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:41:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-20 06:41:20,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:20,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680352346] [2021-11-20 06:41:20,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680352346] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:41:20,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135171010] [2021-11-20 06:41:20,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:20,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:20,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:41:20,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:41:20,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:41:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:41:21,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:41:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 06:41:21,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:41:21,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135171010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:21,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:41:21,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-20 06:41:21,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470833183] [2021-11-20 06:41:21,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:21,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:41:21,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:21,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:41:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:41:21,399 INFO L87 Difference]: Start difference. First operand 393 states and 601 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) [2021-11-20 06:41:21,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:21,444 INFO L93 Difference]: Finished difference Result 592 states and 886 transitions. [2021-11-20 06:41:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:41:21,446 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 [2021-11-20 06:41:21,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:21,456 INFO L225 Difference]: With dead ends: 592 [2021-11-20 06:41:21,456 INFO L226 Difference]: Without dead ends: 396 [2021-11-20 06:41:21,459 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 [2021-11-20 06:41:21,461 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 1 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1196 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 [2021-11-20 06:41:21,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1196 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:41:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-11-20 06:41:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2021-11-20 06:41:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 313 states have internal predecessors, (480), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-11-20 06:41:21,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 603 transitions. [2021-11-20 06:41:21,510 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 603 transitions. Word has length 99 [2021-11-20 06:41:21,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:21,518 INFO L470 AbstractCegarLoop]: Abstraction has 395 states and 603 transitions. [2021-11-20 06:41:21,518 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) [2021-11-20 06:41:21,518 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 603 transitions. [2021-11-20 06:41:21,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 06:41:21,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:21,525 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] [2021-11-20 06:41:21,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:41:21,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:21,726 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:21,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:21,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1440636413, now seen corresponding path program 1 times [2021-11-20 06:41:21,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:21,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012865028] [2021-11-20 06:41:21,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:21,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:41:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:41:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:41:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 06:41:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:41:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:41:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:41:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 06:41:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 06:41:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:41:21,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:21,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012865028] [2021-11-20 06:41:21,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012865028] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:41:21,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304518240] [2021-11-20 06:41:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:21,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:21,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:41:21,908 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:41:21,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:41:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:41:22,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:41:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 06:41:22,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:41:22,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304518240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:22,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:41:22,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-20 06:41:22,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787801117] [2021-11-20 06:41:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:22,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:41:22,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:22,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:41:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:41:22,444 INFO L87 Difference]: Start difference. First operand 395 states and 603 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) [2021-11-20 06:41:22,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:22,503 INFO L93 Difference]: Finished difference Result 843 states and 1306 transitions. [2021-11-20 06:41:22,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:41:22,503 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 [2021-11-20 06:41:22,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:22,509 INFO L225 Difference]: With dead ends: 843 [2021-11-20 06:41:22,510 INFO L226 Difference]: Without dead ends: 475 [2021-11-20 06:41:22,512 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 [2021-11-20 06:41:22,515 INFO L933 BasicCegarLoop]: 623 mSDtfsCounter, 142 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1176 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 [2021-11-20 06:41:22,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1176 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:41:22,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-11-20 06:41:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 467. [2021-11-20 06:41:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 367 states have (on average 1.5722070844686649) internal successors, (577), 371 states have internal predecessors, (577), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2021-11-20 06:41:22,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 728 transitions. [2021-11-20 06:41:22,578 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 728 transitions. Word has length 108 [2021-11-20 06:41:22,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:22,579 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 728 transitions. [2021-11-20 06:41:22,579 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) [2021-11-20 06:41:22,579 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 728 transitions. [2021-11-20 06:41:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-20 06:41:22,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:22,584 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] [2021-11-20 06:41:22,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:41:22,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:22,809 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:22,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash 630003650, now seen corresponding path program 1 times [2021-11-20 06:41:22,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:22,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356602675] [2021-11-20 06:41:22,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:22,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:41:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:41:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:41:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:41:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 06:41:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 06:41:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:41:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-20 06:41:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-20 06:41:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:41:22,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:22,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356602675] [2021-11-20 06:41:22,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356602675] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:41:22,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964500448] [2021-11-20 06:41:22,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:22,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:22,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:41:22,977 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:41:22,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:41:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:23,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:41:23,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:41:23,574 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:41:23,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:41:23,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964500448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:23,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:41:23,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-11-20 06:41:23,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897956629] [2021-11-20 06:41:23,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:23,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:41:23,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:23,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:41:23,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:41:23,582 INFO L87 Difference]: Start difference. First operand 467 states and 728 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) [2021-11-20 06:41:23,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:23,684 INFO L93 Difference]: Finished difference Result 925 states and 1446 transitions. [2021-11-20 06:41:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:41:23,685 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 [2021-11-20 06:41:23,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:23,695 INFO L225 Difference]: With dead ends: 925 [2021-11-20 06:41:23,695 INFO L226 Difference]: Without dead ends: 469 [2021-11-20 06:41:23,697 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 [2021-11-20 06:41:23,700 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 160 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2186 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 [2021-11-20 06:41:23,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 2186 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:41:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2021-11-20 06:41:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2021-11-20 06:41:23,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 368 states have (on average 1.5706521739130435) internal successors, (578), 373 states have internal predecessors, (578), 76 states have call successors, (76), 23 states have call predecessors, (76), 24 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2021-11-20 06:41:23,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 731 transitions. [2021-11-20 06:41:23,743 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 731 transitions. Word has length 109 [2021-11-20 06:41:23,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:23,743 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 731 transitions. [2021-11-20 06:41:23,744 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) [2021-11-20 06:41:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 731 transitions. [2021-11-20 06:41:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-20 06:41:23,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:23,750 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] [2021-11-20 06:41:23,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:41:23,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:23,977 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:23,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:23,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1737380185, now seen corresponding path program 1 times [2021-11-20 06:41:23,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:23,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053595416] [2021-11-20 06:41:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:23,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 06:41:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 06:41:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-20 06:41:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 06:41:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:41:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:41:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 06:41:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:41:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,139 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:41:24,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:24,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053595416] [2021-11-20 06:41:24,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053595416] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:41:24,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243302480] [2021-11-20 06:41:24,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:24,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:24,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:41:24,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:41:24,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:41:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:24,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:41:24,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:41:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:41:24,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:41:24,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243302480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:24,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:41:24,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-11-20 06:41:24,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842342023] [2021-11-20 06:41:24,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:24,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:41:24,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:24,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:41:24,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:41:24,659 INFO L87 Difference]: Start difference. First operand 469 states and 731 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) [2021-11-20 06:41:24,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:24,738 INFO L93 Difference]: Finished difference Result 927 states and 1451 transitions. [2021-11-20 06:41:24,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:41:24,738 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 [2021-11-20 06:41:24,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:24,743 INFO L225 Difference]: With dead ends: 927 [2021-11-20 06:41:24,743 INFO L226 Difference]: Without dead ends: 471 [2021-11-20 06:41:24,745 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 [2021-11-20 06:41:24,746 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 159 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2175 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 [2021-11-20 06:41:24,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2175 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:41:24,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-11-20 06:41:24,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2021-11-20 06:41:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 375 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2021-11-20 06:41:24,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2021-11-20 06:41:24,776 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 110 [2021-11-20 06:41:24,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:24,777 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2021-11-20 06:41:24,777 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) [2021-11-20 06:41:24,777 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2021-11-20 06:41:24,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-20 06:41:24,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:24,780 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] [2021-11-20 06:41:24,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:41:25,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:25,005 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:25,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:25,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1454142977, now seen corresponding path program 1 times [2021-11-20 06:41:25,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:25,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338101241] [2021-11-20 06:41:25,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:25,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 06:41:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 06:41:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-20 06:41:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:41:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-20 06:41:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 06:41:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-20 06:41:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:41:25,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:25,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338101241] [2021-11-20 06:41:25,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338101241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:25,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:25,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:41:25,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833232185] [2021-11-20 06:41:25,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:25,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:41:25,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:25,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:41:25,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:41:25,166 INFO L87 Difference]: Start difference. First operand 471 states and 737 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) [2021-11-20 06:41:27,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:27,503 INFO L93 Difference]: Finished difference Result 1112 states and 1766 transitions. [2021-11-20 06:41:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:41:27,503 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 [2021-11-20 06:41:27,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:27,511 INFO L225 Difference]: With dead ends: 1112 [2021-11-20 06:41:27,512 INFO L226 Difference]: Without dead ends: 664 [2021-11-20 06:41:27,514 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 [2021-11-20 06:41:27,516 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 1461 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 2847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:27,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1481 Valid, 2075 Invalid, 2847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 06:41:27,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-11-20 06:41:27,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 471. [2021-11-20 06:41:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 375 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2021-11-20 06:41:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 736 transitions. [2021-11-20 06:41:27,585 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 736 transitions. Word has length 111 [2021-11-20 06:41:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:27,585 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 736 transitions. [2021-11-20 06:41:27,585 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) [2021-11-20 06:41:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 736 transitions. [2021-11-20 06:41:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-20 06:41:27,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:27,589 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] [2021-11-20 06:41:27,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:41:27,590 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1166401654, now seen corresponding path program 2 times [2021-11-20 06:41:27,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:27,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998493623] [2021-11-20 06:41:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:27,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 06:41:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 06:41:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:41:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-20 06:41:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:41:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-20 06:41:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 06:41:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:41:27,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:27,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998493623] [2021-11-20 06:41:27,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998493623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:27,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:27,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:41:27,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548538742] [2021-11-20 06:41:27,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:27,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:41:27,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:27,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:41:27,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:41:27,749 INFO L87 Difference]: Start difference. First operand 471 states and 736 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) [2021-11-20 06:41:30,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:30,061 INFO L93 Difference]: Finished difference Result 1114 states and 1769 transitions. [2021-11-20 06:41:30,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:41:30,062 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 [2021-11-20 06:41:30,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:30,068 INFO L225 Difference]: With dead ends: 1114 [2021-11-20 06:41:30,069 INFO L226 Difference]: Without dead ends: 666 [2021-11-20 06:41:30,071 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 [2021-11-20 06:41:30,072 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 1457 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:30,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 2062 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 2249 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 06:41:30,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-11-20 06:41:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 473. [2021-11-20 06:41:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 377 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2021-11-20 06:41:30,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 739 transitions. [2021-11-20 06:41:30,117 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 739 transitions. Word has length 112 [2021-11-20 06:41:30,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:30,117 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 739 transitions. [2021-11-20 06:41:30,118 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) [2021-11-20 06:41:30,118 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 739 transitions. [2021-11-20 06:41:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-20 06:41:30,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:30,121 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] [2021-11-20 06:41:30,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:41:30,122 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:30,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash 904019238, now seen corresponding path program 1 times [2021-11-20 06:41:30,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:30,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269803396] [2021-11-20 06:41:30,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:30,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:41:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:41:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:41:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 06:41:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 06:41:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 06:41:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:30,277 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:41:30,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:30,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269803396] [2021-11-20 06:41:30,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269803396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:30,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:30,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:41:30,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472920854] [2021-11-20 06:41:30,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:30,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:41:30,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:30,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:41:30,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:41:30,293 INFO L87 Difference]: Start difference. First operand 473 states and 739 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) [2021-11-20 06:41:33,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:33,442 INFO L93 Difference]: Finished difference Result 1112 states and 1764 transitions. [2021-11-20 06:41:33,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 06:41:33,442 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 [2021-11-20 06:41:33,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:33,449 INFO L225 Difference]: With dead ends: 1112 [2021-11-20 06:41:33,450 INFO L226 Difference]: Without dead ends: 666 [2021-11-20 06:41:33,452 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 [2021-11-20 06:41:33,453 INFO L933 BasicCegarLoop]: 712 mSDtfsCounter, 1603 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 4058 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 4681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 4058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:33,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1603 Valid, 2709 Invalid, 4681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 4058 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-20 06:41:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-11-20 06:41:33,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 473. [2021-11-20 06:41:33,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 377 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2021-11-20 06:41:33,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 738 transitions. [2021-11-20 06:41:33,504 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 738 transitions. Word has length 113 [2021-11-20 06:41:33,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:33,504 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 738 transitions. [2021-11-20 06:41:33,505 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) [2021-11-20 06:41:33,505 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 738 transitions. [2021-11-20 06:41:33,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-20 06:41:33,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:33,508 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] [2021-11-20 06:41:33,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:41:33,508 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:33,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:33,509 INFO L85 PathProgramCache]: Analyzing trace with hash 335510668, now seen corresponding path program 2 times [2021-11-20 06:41:33,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:33,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293466685] [2021-11-20 06:41:33,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:33,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 06:41:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:41:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 06:41:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 06:41:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:41:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:41:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:33,700 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:41:33,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:33,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293466685] [2021-11-20 06:41:33,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293466685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:33,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:33,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:41:33,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040788429] [2021-11-20 06:41:33,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:33,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:41:33,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:33,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:41:33,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:41:33,704 INFO L87 Difference]: Start difference. First operand 473 states and 738 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) [2021-11-20 06:41:36,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:36,695 INFO L93 Difference]: Finished difference Result 1114 states and 1770 transitions. [2021-11-20 06:41:36,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 06:41:36,695 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 [2021-11-20 06:41:36,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:36,701 INFO L225 Difference]: With dead ends: 1114 [2021-11-20 06:41:36,702 INFO L226 Difference]: Without dead ends: 668 [2021-11-20 06:41:36,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-11-20 06:41:36,705 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 1598 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 4049 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 4049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:36,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1598 Valid, 2696 Invalid, 4697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 4049 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 06:41:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2021-11-20 06:41:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 475. [2021-11-20 06:41:36,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 371 states have (on average 1.5660377358490567) internal successors, (581), 379 states have internal predecessors, (581), 76 states have call successors, (76), 23 states have call predecessors, (76), 27 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2021-11-20 06:41:36,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 744 transitions. [2021-11-20 06:41:36,750 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 744 transitions. Word has length 114 [2021-11-20 06:41:36,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:36,750 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 744 transitions. [2021-11-20 06:41:36,751 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) [2021-11-20 06:41:36,751 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 744 transitions. [2021-11-20 06:41:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-20 06:41:36,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:36,754 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] [2021-11-20 06:41:36,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:41:36,754 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:36,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1768204843, now seen corresponding path program 1 times [2021-11-20 06:41:36,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:36,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455580367] [2021-11-20 06:41:36,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:36,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 06:41:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:41:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:41:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-20 06:41:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 06:41:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 06:41:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-20 06:41:36,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:36,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455580367] [2021-11-20 06:41:36,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455580367] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:41:36,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399826543] [2021-11-20 06:41:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:36,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:41:36,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:41:36,923 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:41:36,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:41:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:37,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:41:37,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:41:37,396 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:37,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:41:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:37,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399826543] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:41:37,677 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:41:37,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-11-20 06:41:37,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323116958] [2021-11-20 06:41:37,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:41:37,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 06:41:37,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:37,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 06:41:37,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:41:37,680 INFO L87 Difference]: Start difference. First operand 475 states and 744 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) [2021-11-20 06:41:41,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:41,930 INFO L93 Difference]: Finished difference Result 2023 states and 3408 transitions. [2021-11-20 06:41:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 06:41:41,930 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 [2021-11-20 06:41:41,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:41,943 INFO L225 Difference]: With dead ends: 2023 [2021-11-20 06:41:41,944 INFO L226 Difference]: Without dead ends: 1579 [2021-11-20 06:41:41,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-11-20 06:41:41,948 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 4236 mSDsluCounter, 3755 mSDsCounter, 0 mSdLazyCounter, 5789 mSolverCounterSat, 1643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4238 SdHoareTripleChecker+Valid, 4660 SdHoareTripleChecker+Invalid, 7432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1643 IncrementalHoareTripleChecker+Valid, 5789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:41,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4238 Valid, 4660 Invalid, 7432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1643 Valid, 5789 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-20 06:41:41,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2021-11-20 06:41:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 918. [2021-11-20 06:41:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 735 states have (on average 1.6149659863945578) internal successors, (1187), 743 states have internal predecessors, (1187), 155 states have call successors, (155), 23 states have call predecessors, (155), 27 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2021-11-20 06:41:42,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1518 transitions. [2021-11-20 06:41:42,040 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1518 transitions. Word has length 115 [2021-11-20 06:41:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:42,041 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1518 transitions. [2021-11-20 06:41:42,041 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) [2021-11-20 06:41:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1518 transitions. [2021-11-20 06:41:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 06:41:42,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:42,047 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] [2021-11-20 06:41:42,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-20 06:41:42,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f779fef-eeea-4148-be80-c44a112df0d5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 06:41:42,261 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:42,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash -294936037, now seen corresponding path program 1 times [2021-11-20 06:41:42,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:42,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721592235] [2021-11-20 06:41:42,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:42,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:41:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 06:41:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:41:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:41:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-20 06:41:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 06:41:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:42,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:42,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721592235] [2021-11-20 06:41:42,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721592235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:42,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:42,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:41:42,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491202969] [2021-11-20 06:41:42,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:42,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:41:42,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:42,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:41:42,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:41:42,427 INFO L87 Difference]: Start difference. First operand 918 states and 1518 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) [2021-11-20 06:41:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:44,048 INFO L93 Difference]: Finished difference Result 2374 states and 4016 transitions. [2021-11-20 06:41:44,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:41:44,053 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 [2021-11-20 06:41:44,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:44,066 INFO L225 Difference]: With dead ends: 2374 [2021-11-20 06:41:44,066 INFO L226 Difference]: Without dead ends: 1534 [2021-11-20 06:41:44,070 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 [2021-11-20 06:41:44,071 INFO L933 BasicCegarLoop]: 758 mSDtfsCounter, 1455 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:44,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1474 Valid, 1702 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 06:41:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2021-11-20 06:41:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1333. [2021-11-20 06:41:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1071 states have (on average 1.6311858076563959) internal successors, (1747), 1079 states have internal predecessors, (1747), 234 states have call successors, (234), 23 states have call predecessors, (234), 27 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2021-11-20 06:41:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2246 transitions. [2021-11-20 06:41:44,186 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2246 transitions. Word has length 118 [2021-11-20 06:41:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:44,187 INFO L470 AbstractCegarLoop]: Abstraction has 1333 states and 2246 transitions. [2021-11-20 06:41:44,187 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) [2021-11-20 06:41:44,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2246 transitions. [2021-11-20 06:41:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-20 06:41:44,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:44,196 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] [2021-11-20 06:41:44,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:41:44,196 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:44,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:44,197 INFO L85 PathProgramCache]: Analyzing trace with hash 7565295, now seen corresponding path program 1 times [2021-11-20 06:41:44,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:44,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491381345] [2021-11-20 06:41:44,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:44,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:41:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:41:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:41:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:41:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 06:41:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 06:41:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:44,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:44,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491381345] [2021-11-20 06:41:44,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491381345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:44,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:44,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:41:44,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733163594] [2021-11-20 06:41:44,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:44,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:41:44,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:44,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:41:44,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:41:44,306 INFO L87 Difference]: Start difference. First operand 1333 states and 2246 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) [2021-11-20 06:41:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:45,900 INFO L93 Difference]: Finished difference Result 3413 states and 5829 transitions. [2021-11-20 06:41:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:41:45,902 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 [2021-11-20 06:41:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:45,918 INFO L225 Difference]: With dead ends: 3413 [2021-11-20 06:41:45,918 INFO L226 Difference]: Without dead ends: 2211 [2021-11-20 06:41:45,923 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 [2021-11-20 06:41:45,924 INFO L933 BasicCegarLoop]: 762 mSDtfsCounter, 1448 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:45,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1466 Valid, 1716 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [626 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 06:41:45,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2021-11-20 06:41:46,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2010. [2021-11-20 06:41:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1629 states have (on average 1.638428483732351) internal successors, (2669), 1637 states have internal predecessors, (2669), 353 states have call successors, (353), 23 states have call predecessors, (353), 27 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2021-11-20 06:41:46,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3406 transitions. [2021-11-20 06:41:46,099 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3406 transitions. Word has length 119 [2021-11-20 06:41:46,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:46,100 INFO L470 AbstractCegarLoop]: Abstraction has 2010 states and 3406 transitions. [2021-11-20 06:41:46,100 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) [2021-11-20 06:41:46,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3406 transitions. [2021-11-20 06:41:46,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 06:41:46,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:46,112 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] [2021-11-20 06:41:46,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 06:41:46,113 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:46,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:46,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1246694157, now seen corresponding path program 1 times [2021-11-20 06:41:46,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:46,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185350220] [2021-11-20 06:41:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:46,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:41:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:41:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-20 06:41:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:41:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 06:41:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 06:41:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:46,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:46,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185350220] [2021-11-20 06:41:46,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185350220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:46,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:46,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:41:46,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271072976] [2021-11-20 06:41:46,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:46,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:41:46,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:46,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:41:46,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:41:46,245 INFO L87 Difference]: Start difference. First operand 2010 states and 3406 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) [2021-11-20 06:41:47,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:47,928 INFO L93 Difference]: Finished difference Result 4998 states and 8608 transitions. [2021-11-20 06:41:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:41:47,928 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 [2021-11-20 06:41:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:47,953 INFO L225 Difference]: With dead ends: 4998 [2021-11-20 06:41:47,953 INFO L226 Difference]: Without dead ends: 3254 [2021-11-20 06:41:47,960 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 [2021-11-20 06:41:47,961 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 1446 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:47,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1464 Valid, 1690 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 06:41:47,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2021-11-20 06:41:48,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3053. [2021-11-20 06:41:48,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2510 states have (on average 1.6442231075697211) internal successors, (4127), 2518 states have internal predecessors, (4127), 515 states have call successors, (515), 23 states have call predecessors, (515), 27 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2021-11-20 06:41:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5204 transitions. [2021-11-20 06:41:48,256 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5204 transitions. Word has length 120 [2021-11-20 06:41:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:48,256 INFO L470 AbstractCegarLoop]: Abstraction has 3053 states and 5204 transitions. [2021-11-20 06:41:48,257 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) [2021-11-20 06:41:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5204 transitions. [2021-11-20 06:41:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-20 06:41:48,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:48,272 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] [2021-11-20 06:41:48,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:41:48,272 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:48,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:48,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1773974226, now seen corresponding path program 1 times [2021-11-20 06:41:48,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:48,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42553251] [2021-11-20 06:41:48,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:48,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 06:41:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-20 06:41:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:41:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 06:41:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:41:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:41:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:48,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:48,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42553251] [2021-11-20 06:41:48,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42553251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:48,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:48,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:41:48,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839566809] [2021-11-20 06:41:48,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:48,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:41:48,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:48,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:41:48,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:41:48,386 INFO L87 Difference]: Start difference. First operand 3053 states and 5204 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) [2021-11-20 06:41:50,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:50,126 INFO L93 Difference]: Finished difference Result 7512 states and 13023 transitions. [2021-11-20 06:41:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:41:50,127 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 [2021-11-20 06:41:50,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:50,163 INFO L225 Difference]: With dead ends: 7512 [2021-11-20 06:41:50,163 INFO L226 Difference]: Without dead ends: 4944 [2021-11-20 06:41:50,172 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 [2021-11-20 06:41:50,173 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 1444 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:50,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1462 Valid, 1681 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 06:41:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4944 states. [2021-11-20 06:41:50,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4944 to 4743. [2021-11-20 06:41:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3955 states have (on average 1.6482932996207333) internal successors, (6519), 3963 states have internal predecessors, (6519), 760 states have call successors, (760), 23 states have call predecessors, (760), 27 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2021-11-20 06:41:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 8112 transitions. [2021-11-20 06:41:50,617 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 8112 transitions. Word has length 121 [2021-11-20 06:41:50,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:50,618 INFO L470 AbstractCegarLoop]: Abstraction has 4743 states and 8112 transitions. [2021-11-20 06:41:50,618 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) [2021-11-20 06:41:50,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 8112 transitions. [2021-11-20 06:41:50,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-20 06:41:50,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:50,637 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] [2021-11-20 06:41:50,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 06:41:50,637 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:50,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:50,638 INFO L85 PathProgramCache]: Analyzing trace with hash -117131631, now seen corresponding path program 1 times [2021-11-20 06:41:50,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:50,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504644881] [2021-11-20 06:41:50,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:50,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:41:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:41:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 06:41:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-20 06:41:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 06:41:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 06:41:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:50,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:50,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504644881] [2021-11-20 06:41:50,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504644881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:50,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:50,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:41:50,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847422427] [2021-11-20 06:41:50,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:50,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:41:50,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:50,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:41:50,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:41:50,777 INFO L87 Difference]: Start difference. First operand 4743 states and 8112 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) [2021-11-20 06:41:52,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:52,641 INFO L93 Difference]: Finished difference Result 11713 states and 20400 transitions. [2021-11-20 06:41:52,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:41:52,642 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 [2021-11-20 06:41:52,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:52,698 INFO L225 Difference]: With dead ends: 11713 [2021-11-20 06:41:52,698 INFO L226 Difference]: Without dead ends: 7787 [2021-11-20 06:41:52,711 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 [2021-11-20 06:41:52,711 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1445 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:52,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1464 Valid, 1693 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 06:41:52,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7787 states. [2021-11-20 06:41:53,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7787 to 7586. [2021-11-20 06:41:53,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6305 states have (on average 1.6459952418715305) internal successors, (10378), 6313 states have internal predecessors, (10378), 1253 states have call successors, (1253), 23 states have call predecessors, (1253), 27 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2021-11-20 06:41:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 13001 transitions. [2021-11-20 06:41:53,340 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 13001 transitions. Word has length 122 [2021-11-20 06:41:53,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:53,341 INFO L470 AbstractCegarLoop]: Abstraction has 7586 states and 13001 transitions. [2021-11-20 06:41:53,341 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) [2021-11-20 06:41:53,341 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 13001 transitions. [2021-11-20 06:41:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 06:41:53,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:53,365 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] [2021-11-20 06:41:53,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 06:41:53,365 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:53,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:53,366 INFO L85 PathProgramCache]: Analyzing trace with hash 285644202, now seen corresponding path program 1 times [2021-11-20 06:41:53,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:53,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266482893] [2021-11-20 06:41:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:53,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 06:41:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 06:41:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 06:41:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 06:41:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 06:41:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-20 06:41:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:53,473 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:53,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:53,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266482893] [2021-11-20 06:41:53,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266482893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:53,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:53,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:41:53,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871842210] [2021-11-20 06:41:53,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:53,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:41:53,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:53,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:41:53,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:41:53,476 INFO L87 Difference]: Start difference. First operand 7586 states and 13001 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) [2021-11-20 06:41:55,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:55,601 INFO L93 Difference]: Finished difference Result 19328 states and 33676 transitions. [2021-11-20 06:41:55,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:41:55,601 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 [2021-11-20 06:41:55,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:55,659 INFO L225 Difference]: With dead ends: 19328 [2021-11-20 06:41:55,659 INFO L226 Difference]: Without dead ends: 12961 [2021-11-20 06:41:55,683 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 [2021-11-20 06:41:55,683 INFO L933 BasicCegarLoop]: 752 mSDtfsCounter, 1442 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:55,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1461 Valid, 1680 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 06:41:55,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12961 states. [2021-11-20 06:41:56,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12961 to 12760. [2021-11-20 06:41:56,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12760 states, 10657 states have (on average 1.6459604016139626) internal successors, (17541), 10665 states have internal predecessors, (17541), 2075 states have call successors, (2075), 23 states have call predecessors, (2075), 27 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2021-11-20 06:41:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12760 states to 12760 states and 21886 transitions. [2021-11-20 06:41:56,744 INFO L78 Accepts]: Start accepts. Automaton has 12760 states and 21886 transitions. Word has length 123 [2021-11-20 06:41:56,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:56,745 INFO L470 AbstractCegarLoop]: Abstraction has 12760 states and 21886 transitions. [2021-11-20 06:41:56,745 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) [2021-11-20 06:41:56,745 INFO L276 IsEmpty]: Start isEmpty. Operand 12760 states and 21886 transitions. [2021-11-20 06:41:56,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-20 06:41:56,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:56,771 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] [2021-11-20 06:41:56,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 06:41:56,771 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:41:56,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:56,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1444368675, now seen corresponding path program 1 times [2021-11-20 06:41:56,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:56,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477640365] [2021-11-20 06:41:56,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:56,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:41:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:41:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:41:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:41:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:41:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:41:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:41:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-20 06:41:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 06:41:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 06:41:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 06:41:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:56,871 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:41:56,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:56,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477640365] [2021-11-20 06:41:56,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477640365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:56,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:56,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:41:56,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883285260] [2021-11-20 06:41:56,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:56,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:41:56,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:56,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:41:56,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:41:56,874 INFO L87 Difference]: Start difference. First operand 12760 states and 21886 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) [2021-11-20 06:41:59,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:59,325 INFO L93 Difference]: Finished difference Result 30811 states and 53376 transitions. [2021-11-20 06:41:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:41:59,325 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 [2021-11-20 06:41:59,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:59,412 INFO L225 Difference]: With dead ends: 30811 [2021-11-20 06:41:59,412 INFO L226 Difference]: Without dead ends: 20274 [2021-11-20 06:41:59,442 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 [2021-11-20 06:41:59,443 INFO L933 BasicCegarLoop]: 760 mSDtfsCounter, 1440 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:59,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1458 Valid, 1691 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 06:41:59,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20274 states. [2021-11-20 06:42:00,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20274 to 20073. [2021-11-20 06:42:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 16767 states have (on average 1.6214588179161449) internal successors, (27187), 16775 states have internal predecessors, (27187), 3278 states have call successors, (3278), 23 states have call predecessors, (3278), 27 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2021-11-20 06:42:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 34082 transitions. [2021-11-20 06:42:00,829 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 34082 transitions. Word has length 124 [2021-11-20 06:42:00,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:00,829 INFO L470 AbstractCegarLoop]: Abstraction has 20073 states and 34082 transitions. [2021-11-20 06:42:00,830 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) [2021-11-20 06:42:00,830 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 34082 transitions. [2021-11-20 06:42:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-20 06:42:00,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:00,857 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] [2021-11-20 06:42:00,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 06:42:00,857 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:00,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1015474743, now seen corresponding path program 1 times [2021-11-20 06:42:00,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:00,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667515537] [2021-11-20 06:42:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:00,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:42:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:42:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:42:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:42:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:42:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:42:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:42:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-20 06:42:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 06:42:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-20 06:42:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 06:42:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-20 06:42:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,960 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:42:00,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:00,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667515537] [2021-11-20 06:42:00,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667515537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:00,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:00,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:42:00,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761675289] [2021-11-20 06:42:00,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:00,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:42:00,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:00,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:42:00,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:42:00,963 INFO L87 Difference]: Start difference. First operand 20073 states and 34082 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) [2021-11-20 06:42:04,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:04,822 INFO L93 Difference]: Finished difference Result 53253 states and 91910 transitions. [2021-11-20 06:42:04,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:42:04,824 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 [2021-11-20 06:42:04,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:04,963 INFO L225 Difference]: With dead ends: 53253 [2021-11-20 06:42:04,963 INFO L226 Difference]: Without dead ends: 36080 [2021-11-20 06:42:05,005 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 [2021-11-20 06:42:05,006 INFO L933 BasicCegarLoop]: 759 mSDtfsCounter, 1437 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:05,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 1699 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 06:42:05,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36080 states. [2021-11-20 06:42:07,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36080 to 35879. [2021-11-20 06:42:07,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35879 states, 30123 states have (on average 1.618331507485974) internal successors, (48749), 30131 states have internal predecessors, (48749), 5728 states have call successors, (5728), 23 states have call predecessors, (5728), 27 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2021-11-20 06:42:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35879 states to 35879 states and 60818 transitions. [2021-11-20 06:42:07,780 INFO L78 Accepts]: Start accepts. Automaton has 35879 states and 60818 transitions. Word has length 125 [2021-11-20 06:42:07,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:07,780 INFO L470 AbstractCegarLoop]: Abstraction has 35879 states and 60818 transitions. [2021-11-20 06:42:07,781 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) [2021-11-20 06:42:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 35879 states and 60818 transitions. [2021-11-20 06:42:07,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-20 06:42:07,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:07,806 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] [2021-11-20 06:42:07,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 06:42:07,806 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:07,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1528862455, now seen corresponding path program 1 times [2021-11-20 06:42:07,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:07,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945276936] [2021-11-20 06:42:07,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:07,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:42:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:42:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:42:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:42:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:42:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:42:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-20 06:42:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:42:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 06:42:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 06:42:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 06:42:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 06:42:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:07,911 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:42:07,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:07,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945276936] [2021-11-20 06:42:07,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945276936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:07,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:07,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:42:07,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211030440] [2021-11-20 06:42:07,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:07,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:42:07,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:07,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:42:07,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:42:07,914 INFO L87 Difference]: Start difference. First operand 35879 states and 60818 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) [2021-11-20 06:42:12,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:12,641 INFO L93 Difference]: Finished difference Result 98100 states and 168469 transitions. [2021-11-20 06:42:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:42:12,641 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 [2021-11-20 06:42:12,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:12,917 INFO L225 Difference]: With dead ends: 98100 [2021-11-20 06:42:12,917 INFO L226 Difference]: Without dead ends: 66077 [2021-11-20 06:42:13,190 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 [2021-11-20 06:42:13,191 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 1438 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:13,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 1689 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 06:42:13,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66077 states. [2021-11-20 06:42:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66077 to 65876. [2021-11-20 06:42:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65876 states, 55607 states have (on average 1.6142212311399644) internal successors, (89762), 55615 states have internal predecessors, (89762), 10241 states have call successors, (10241), 23 states have call predecessors, (10241), 27 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2021-11-20 06:42:17,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65876 states to 65876 states and 111389 transitions. [2021-11-20 06:42:17,643 INFO L78 Accepts]: Start accepts. Automaton has 65876 states and 111389 transitions. Word has length 126 [2021-11-20 06:42:17,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:17,644 INFO L470 AbstractCegarLoop]: Abstraction has 65876 states and 111389 transitions. [2021-11-20 06:42:17,644 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) [2021-11-20 06:42:17,644 INFO L276 IsEmpty]: Start isEmpty. Operand 65876 states and 111389 transitions. [2021-11-20 06:42:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 06:42:17,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:17,665 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] [2021-11-20 06:42:17,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 06:42:17,666 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1961864041, now seen corresponding path program 1 times [2021-11-20 06:42:17,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:17,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268500798] [2021-11-20 06:42:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:17,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:42:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:42:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:42:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:42:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:42:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:42:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:42:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:42:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:42:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:42:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 06:42:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-20 06:42:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:42:17,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:17,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268500798] [2021-11-20 06:42:17,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268500798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:17,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:17,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:42:17,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713138925] [2021-11-20 06:42:17,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:17,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:42:17,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:17,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:42:17,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:42:17,776 INFO L87 Difference]: Start difference. First operand 65876 states and 111389 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) [2021-11-20 06:42:25,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:25,674 INFO L93 Difference]: Finished difference Result 123761 states and 212902 transitions. [2021-11-20 06:42:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:42:25,675 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 [2021-11-20 06:42:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:26,113 INFO L225 Difference]: With dead ends: 123761 [2021-11-20 06:42:26,114 INFO L226 Difference]: Without dead ends: 123565 [2021-11-20 06:42:26,163 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 [2021-11-20 06:42:26,166 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 1435 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:26,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1453 Valid, 1687 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 06:42:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123565 states. [2021-11-20 06:42:33,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123565 to 123364. [2021-11-20 06:42:33,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123364 states, 104727 states have (on average 1.609078843087265) internal successors, (168514), 104735 states have internal predecessors, (168514), 18609 states have call successors, (18609), 23 states have call predecessors, (18609), 27 states have return successors, (20800), 18607 states have call predecessors, (20800), 18608 states have call successors, (20800) [2021-11-20 06:42:34,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123364 states to 123364 states and 207923 transitions. [2021-11-20 06:42:34,145 INFO L78 Accepts]: Start accepts. Automaton has 123364 states and 207923 transitions. Word has length 127 [2021-11-20 06:42:34,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:34,145 INFO L470 AbstractCegarLoop]: Abstraction has 123364 states and 207923 transitions. [2021-11-20 06:42:34,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (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) [2021-11-20 06:42:34,145 INFO L276 IsEmpty]: Start isEmpty. Operand 123364 states and 207923 transitions.