./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 bd6587ac6cf18c69f9c15caef5354ee5ad606346c35154ee0861ae3e169457d6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:13:17,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:13:17,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:13:17,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:13:17,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:13:17,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:13:17,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:13:17,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:13:17,966 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:13:17,967 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:13:17,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:13:17,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:13:17,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:13:17,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:13:17,970 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:13:17,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:13:17,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:13:17,971 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:13:17,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:13:17,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:13:17,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:13:17,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:13:17,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:13:17,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:13:17,975 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:13:17,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:13:17,975 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:13:17,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:13:17,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:13:17,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:13:17,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:13:17,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:13:17,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:13:17,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:13:17,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:13:17,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:13:17,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:13:17,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:13:17,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:13:17,980 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:13:17,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:13:17,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:13:17,980 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6587ac6cf18c69f9c15caef5354ee5ad606346c35154ee0861ae3e169457d6 [2023-11-29 04:13:18,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:13:18,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:13:18,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:13:18,223 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:13:18,224 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:13:18,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/email_spec0_product38.cil.c [2023-11-29 04:13:21,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:13:21,329 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:13:21,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/sv-benchmarks/c/product-lines/email_spec0_product38.cil.c [2023-11-29 04:13:21,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/data/665c64b4e/6235ebe97ee84b0cacf93c08768adc94/FLAGf2542e5f3 [2023-11-29 04:13:21,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/data/665c64b4e/6235ebe97ee84b0cacf93c08768adc94 [2023-11-29 04:13:21,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:13:21,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:13:21,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:13:21,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:13:21,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:13:21,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:13:21" (1/1) ... [2023-11-29 04:13:21,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fa1283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:21, skipping insertion in model container [2023-11-29 04:13:21,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:13:21" (1/1) ... [2023-11-29 04:13:21,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:13:21,667 WARN L240 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_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/sv-benchmarks/c/product-lines/email_spec0_product38.cil.c[9373,9386] [2023-11-29 04:13:21,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:13:21,920 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:13:21,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-11-29 04:13:21,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [460] [2023-11-29 04:13:21,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [469] [2023-11-29 04:13:21,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [801] [2023-11-29 04:13:21,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1167] [2023-11-29 04:13:21,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1386] [2023-11-29 04:13:21,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2455] [2023-11-29 04:13:21,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2475] [2023-11-29 04:13:21,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2510] [2023-11-29 04:13:21,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2747] [2023-11-29 04:13:21,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2810] [2023-11-29 04:13:21,947 WARN L240 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_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/sv-benchmarks/c/product-lines/email_spec0_product38.cil.c[9373,9386] [2023-11-29 04:13:22,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:13:22,048 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:13:22,054 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:13:22,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22 WrapperNode [2023-11-29 04:13:22,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:13:22,056 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:13:22,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:13:22,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:13:22,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,139 INFO L138 Inliner]: procedures = 124, calls = 195, calls flagged for inlining = 49, calls inlined = 46, statements flattened = 897 [2023-11-29 04:13:22,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:13:22,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:13:22,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:13:22,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:13:22,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,159 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,187 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-11-29 04:13:22,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:13:22,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:13:22,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:13:22,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:13:22,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (1/1) ... [2023-11-29 04:13:22,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:13:22,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:22,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:13:22,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:13:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-29 04:13:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-29 04:13:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-29 04:13:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-29 04:13:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-11-29 04:13:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-11-29 04:13:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-29 04:13:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-29 04:13:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-29 04:13:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-29 04:13:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-29 04:13:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-29 04:13:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-29 04:13:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-29 04:13:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-29 04:13:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-29 04:13:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-29 04:13:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-29 04:13:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-29 04:13:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:13:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-29 04:13:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-29 04:13:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-29 04:13:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-29 04:13:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-29 04:13:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-29 04:13:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-29 04:13:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-29 04:13:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-29 04:13:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-29 04:13:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-29 04:13:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-29 04:13:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-29 04:13:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-29 04:13:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:13:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:13:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:13:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 04:13:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-29 04:13:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-29 04:13:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-29 04:13:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-29 04:13:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:13:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:13:22,506 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:13:22,509 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:13:23,190 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:13:23,257 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:13:23,258 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:13:23,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:13:23 BoogieIcfgContainer [2023-11-29 04:13:23,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:13:23,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:13:23,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:13:23,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:13:23,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:13:21" (1/3) ... [2023-11-29 04:13:23,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef32fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:13:23, skipping insertion in model container [2023-11-29 04:13:23,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:13:22" (2/3) ... [2023-11-29 04:13:23,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef32fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:13:23, skipping insertion in model container [2023-11-29 04:13:23,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:13:23" (3/3) ... [2023-11-29 04:13:23,267 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product38.cil.c [2023-11-29 04:13:23,285 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:13:23,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:13:23,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:13:23,348 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@291a8cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:13:23,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:13:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 221 states have (on average 1.6380090497737556) internal successors, (362), 224 states have internal predecessors, (362), 47 states have call successors, (47), 18 states have call predecessors, (47), 18 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:13:23,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 04:13:23,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:23,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:23,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:23,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash -519159914, now seen corresponding path program 1 times [2023-11-29 04:13:23,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:23,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214776261] [2023-11-29 04:13:23,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:23,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:23,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:23,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:13:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 04:13:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 04:13:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 04:13:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 04:13:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 04:13:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 04:13:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 04:13:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:13:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 04:13:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 04:13:24,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214776261] [2023-11-29 04:13:24,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214776261] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:24,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228456567] [2023-11-29 04:13:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:24,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:24,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:24,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:24,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:13:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:24,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:13:24,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 04:13:24,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:13:24,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228456567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:24,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:24,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-29 04:13:24,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281939684] [2023-11-29 04:13:24,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:24,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:13:24,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:24,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:13:24,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:13:24,437 INFO L87 Difference]: Start difference. First operand has 288 states, 221 states have (on average 1.6380090497737556) internal successors, (362), 224 states have internal predecessors, (362), 47 states have call successors, (47), 18 states have call predecessors, (47), 18 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:24,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:24,517 INFO L93 Difference]: Finished difference Result 392 states and 611 transitions. [2023-11-29 04:13:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:13:24,520 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2023-11-29 04:13:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:24,535 INFO L225 Difference]: With dead ends: 392 [2023-11-29 04:13:24,535 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 04:13:24,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:13:24,544 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:24,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 438 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:13:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 04:13:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-11-29 04:13:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 219 states have (on average 1.6210045662100456) internal successors, (355), 221 states have internal predecessors, (355), 47 states have call successors, (47), 18 states have call predecessors, (47), 18 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:13:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 448 transitions. [2023-11-29 04:13:24,611 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 448 transitions. Word has length 93 [2023-11-29 04:13:24,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:24,613 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 448 transitions. [2023-11-29 04:13:24,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 448 transitions. [2023-11-29 04:13:24,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 04:13:24,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:24,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:24,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:13:24,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 04:13:24,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:24,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:24,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1825044744, now seen corresponding path program 1 times [2023-11-29 04:13:24,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:24,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663480852] [2023-11-29 04:13:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:24,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:13:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 04:13:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 04:13:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 04:13:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 04:13:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:13:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 04:13:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 04:13:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 04:13:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 04:13:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 04:13:25,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:25,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663480852] [2023-11-29 04:13:25,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663480852] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:25,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37043582] [2023-11-29 04:13:25,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:25,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:25,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:25,126 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:25,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:13:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:13:25,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 04:13:25,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:13:25,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37043582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:25,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:25,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-29 04:13:25,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769985837] [2023-11-29 04:13:25,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:25,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:13:25,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:13:25,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:13:25,448 INFO L87 Difference]: Start difference. First operand 285 states and 448 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:25,506 INFO L93 Difference]: Finished difference Result 388 states and 595 transitions. [2023-11-29 04:13:25,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:13:25,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2023-11-29 04:13:25,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:25,511 INFO L225 Difference]: With dead ends: 388 [2023-11-29 04:13:25,511 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 04:13:25,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:13:25,515 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:25,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 869 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:13:25,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 04:13:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2023-11-29 04:13:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 221 states have (on average 1.6153846153846154) internal successors, (357), 223 states have internal predecessors, (357), 47 states have call successors, (47), 18 states have call predecessors, (47), 18 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:13:25,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 450 transitions. [2023-11-29 04:13:25,542 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 450 transitions. Word has length 94 [2023-11-29 04:13:25,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:25,543 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 450 transitions. [2023-11-29 04:13:25,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:25,543 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 450 transitions. [2023-11-29 04:13:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 04:13:25,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:25,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:25,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:13:25,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 04:13:25,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:25,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:25,753 INFO L85 PathProgramCache]: Analyzing trace with hash -661919877, now seen corresponding path program 1 times [2023-11-29 04:13:25,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:25,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755525153] [2023-11-29 04:13:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:25,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:13:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 04:13:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 04:13:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 04:13:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 04:13:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 04:13:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 04:13:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 04:13:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 04:13:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 04:13:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:13:26,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755525153] [2023-11-29 04:13:26,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755525153] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033518062] [2023-11-29 04:13:26,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:26,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:26,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:26,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:26,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:13:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:13:26,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 04:13:26,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:13:26,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033518062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:26,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:26,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-29 04:13:26,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655079571] [2023-11-29 04:13:26,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:26,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:13:26,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:26,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:13:26,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:13:26,324 INFO L87 Difference]: Start difference. First operand 287 states and 450 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:26,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:26,384 INFO L93 Difference]: Finished difference Result 622 states and 992 transitions. [2023-11-29 04:13:26,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:13:26,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2023-11-29 04:13:26,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:26,389 INFO L225 Difference]: With dead ends: 622 [2023-11-29 04:13:26,389 INFO L226 Difference]: Without dead ends: 357 [2023-11-29 04:13:26,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:13:26,393 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 129 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:26,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 838 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:13:26,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-29 04:13:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 352. [2023-11-29 04:13:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 272 states have (on average 1.6323529411764706) internal successors, (444), 274 states have internal predecessors, (444), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 04:13:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 565 transitions. [2023-11-29 04:13:26,426 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 565 transitions. Word has length 99 [2023-11-29 04:13:26,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:26,428 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 565 transitions. [2023-11-29 04:13:26,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 565 transitions. [2023-11-29 04:13:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:13:26,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:26,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:26,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:13:26,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:26,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:26,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:26,634 INFO L85 PathProgramCache]: Analyzing trace with hash 832632185, now seen corresponding path program 1 times [2023-11-29 04:13:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:26,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022037891] [2023-11-29 04:13:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:26,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:13:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 04:13:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 04:13:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 04:13:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 04:13:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:13:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 04:13:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 04:13:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 04:13:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 04:13:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:26,845 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:13:26,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:26,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022037891] [2023-11-29 04:13:26,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022037891] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:26,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560732443] [2023-11-29 04:13:26,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:26,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:26,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:26,848 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:26,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:13:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:13:27,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:13:27,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:13:27,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560732443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:27,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:27,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 04:13:27,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854278580] [2023-11-29 04:13:27,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:27,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:13:27,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:27,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:13:27,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:13:27,197 INFO L87 Difference]: Start difference. First operand 352 states and 565 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:27,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:27,318 INFO L93 Difference]: Finished difference Result 699 states and 1124 transitions. [2023-11-29 04:13:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:13:27,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 100 [2023-11-29 04:13:27,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:27,324 INFO L225 Difference]: With dead ends: 699 [2023-11-29 04:13:27,324 INFO L226 Difference]: Without dead ends: 354 [2023-11-29 04:13:27,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:27,327 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 8 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:27,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1693 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:13:27,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-29 04:13:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2023-11-29 04:13:27,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 273 states have (on average 1.63003663003663) internal successors, (445), 276 states have internal predecessors, (445), 61 states have call successors, (61), 18 states have call predecessors, (61), 19 states have return successors, (62), 59 states have call predecessors, (62), 60 states have call successors, (62) [2023-11-29 04:13:27,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 568 transitions. [2023-11-29 04:13:27,349 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 568 transitions. Word has length 100 [2023-11-29 04:13:27,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:27,349 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 568 transitions. [2023-11-29 04:13:27,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:27,350 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 568 transitions. [2023-11-29 04:13:27,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:13:27,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:27,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:27,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:13:27,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:27,556 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:27,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:27,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1329615643, now seen corresponding path program 1 times [2023-11-29 04:13:27,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:27,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129868826] [2023-11-29 04:13:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:27,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-29 04:13:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:13:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 04:13:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 04:13:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 04:13:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 04:13:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 04:13:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 04:13:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 04:13:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 04:13:27,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:27,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129868826] [2023-11-29 04:13:27,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129868826] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:27,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511868621] [2023-11-29 04:13:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:27,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:27,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:27,800 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:27,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:13:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:13:28,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:13:28,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:13:28,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511868621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:28,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:28,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-29 04:13:28,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006340892] [2023-11-29 04:13:28,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:28,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:13:28,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:28,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:13:28,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:13:28,135 INFO L87 Difference]: Start difference. First operand 354 states and 568 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:28,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:28,258 INFO L93 Difference]: Finished difference Result 701 states and 1129 transitions. [2023-11-29 04:13:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:13:28,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2023-11-29 04:13:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:28,262 INFO L225 Difference]: With dead ends: 701 [2023-11-29 04:13:28,262 INFO L226 Difference]: Without dead ends: 356 [2023-11-29 04:13:28,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:13:28,264 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 8 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:28,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1679 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:13:28,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-29 04:13:28,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2023-11-29 04:13:28,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 274 states have (on average 1.6277372262773722) internal successors, (446), 278 states have internal predecessors, (446), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (67), 59 states have call predecessors, (67), 60 states have call successors, (67) [2023-11-29 04:13:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 574 transitions. [2023-11-29 04:13:28,285 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 574 transitions. Word has length 101 [2023-11-29 04:13:28,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:28,285 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 574 transitions. [2023-11-29 04:13:28,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 574 transitions. [2023-11-29 04:13:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 04:13:28,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:28,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:28,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:13:28,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:28,490 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:28,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:28,490 INFO L85 PathProgramCache]: Analyzing trace with hash -47135586, now seen corresponding path program 1 times [2023-11-29 04:13:28,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:28,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276370597] [2023-11-29 04:13:28,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:28,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 04:13:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 04:13:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:13:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 04:13:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 04:13:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:13:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 04:13:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 04:13:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:28,724 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:13:28,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:28,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276370597] [2023-11-29 04:13:28,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276370597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:28,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:28,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:13:28,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031971285] [2023-11-29 04:13:28,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:28,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:13:28,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:28,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:13:28,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:13:28,727 INFO L87 Difference]: Start difference. First operand 356 states and 574 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:30,753 INFO L93 Difference]: Finished difference Result 801 states and 1315 transitions. [2023-11-29 04:13:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:13:30,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2023-11-29 04:13:30,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:30,759 INFO L225 Difference]: With dead ends: 801 [2023-11-29 04:13:30,760 INFO L226 Difference]: Without dead ends: 464 [2023-11-29 04:13:30,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:13:30,763 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 866 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:30,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1193 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:13:30,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-29 04:13:30,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 356. [2023-11-29 04:13:30,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 274 states have (on average 1.6277372262773722) internal successors, (446), 278 states have internal predecessors, (446), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (66), 59 states have call predecessors, (66), 60 states have call successors, (66) [2023-11-29 04:13:30,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 573 transitions. [2023-11-29 04:13:30,816 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 573 transitions. Word has length 102 [2023-11-29 04:13:30,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:30,816 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 573 transitions. [2023-11-29 04:13:30,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:30,817 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 573 transitions. [2023-11-29 04:13:30,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:13:30,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:30,821 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:30,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:13:30,821 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:30,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:30,822 INFO L85 PathProgramCache]: Analyzing trace with hash 20824620, now seen corresponding path program 2 times [2023-11-29 04:13:30,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:30,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72925879] [2023-11-29 04:13:30,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:30,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:30,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:30,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:30,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 04:13:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 04:13:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 04:13:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 04:13:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:13:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 04:13:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 04:13:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 04:13:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:13:31,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:31,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72925879] [2023-11-29 04:13:31,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72925879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:31,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:31,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:13:31,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369848873] [2023-11-29 04:13:31,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:31,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:13:31,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:31,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:13:31,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:13:31,060 INFO L87 Difference]: Start difference. First operand 356 states and 573 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:32,959 INFO L93 Difference]: Finished difference Result 803 states and 1318 transitions. [2023-11-29 04:13:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:13:32,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2023-11-29 04:13:32,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:32,965 INFO L225 Difference]: With dead ends: 803 [2023-11-29 04:13:32,965 INFO L226 Difference]: Without dead ends: 466 [2023-11-29 04:13:32,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:13:32,968 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 863 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:32,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 1192 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:13:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-29 04:13:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 358. [2023-11-29 04:13:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 275 states have (on average 1.6254545454545455) internal successors, (447), 280 states have internal predecessors, (447), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 59 states have call predecessors, (68), 60 states have call successors, (68) [2023-11-29 04:13:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 576 transitions. [2023-11-29 04:13:33,004 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 576 transitions. Word has length 103 [2023-11-29 04:13:33,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:33,004 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 576 transitions. [2023-11-29 04:13:33,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 576 transitions. [2023-11-29 04:13:33,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 04:13:33,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:33,007 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:33,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:13:33,007 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:33,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:33,008 INFO L85 PathProgramCache]: Analyzing trace with hash 172359353, now seen corresponding path program 1 times [2023-11-29 04:13:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:33,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628837713] [2023-11-29 04:13:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 04:13:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:13:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 04:13:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 04:13:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 04:13:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 04:13:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:13:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 04:13:33,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:33,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628837713] [2023-11-29 04:13:33,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628837713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:33,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:33,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:13:33,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813483014] [2023-11-29 04:13:33,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:33,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:13:33,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:33,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:13:33,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:13:33,275 INFO L87 Difference]: Start difference. First operand 358 states and 576 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:13:35,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:35,551 INFO L93 Difference]: Finished difference Result 801 states and 1313 transitions. [2023-11-29 04:13:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:13:35,552 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 104 [2023-11-29 04:13:35,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:35,556 INFO L225 Difference]: With dead ends: 801 [2023-11-29 04:13:35,556 INFO L226 Difference]: Without dead ends: 466 [2023-11-29 04:13:35,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:13:35,559 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 872 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 3388 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 3710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 3388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:35,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1652 Invalid, 3710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 3388 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:13:35,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-29 04:13:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 358. [2023-11-29 04:13:35,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 275 states have (on average 1.6254545454545455) internal successors, (447), 280 states have internal predecessors, (447), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (67), 59 states have call predecessors, (67), 60 states have call successors, (67) [2023-11-29 04:13:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 575 transitions. [2023-11-29 04:13:35,594 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 575 transitions. Word has length 104 [2023-11-29 04:13:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:35,594 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 575 transitions. [2023-11-29 04:13:35,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:13:35,595 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 575 transitions. [2023-11-29 04:13:35,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 04:13:35,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:35,598 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:35,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:13:35,598 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:35,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:35,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1758378586, now seen corresponding path program 2 times [2023-11-29 04:13:35,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:35,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892136106] [2023-11-29 04:13:35,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:35,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 04:13:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 04:13:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 04:13:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 04:13:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:13:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 04:13:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 04:13:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 04:13:35,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:35,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892136106] [2023-11-29 04:13:35,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892136106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:35,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:35,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:13:35,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924992150] [2023-11-29 04:13:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:35,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:13:35,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:35,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:13:35,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:13:35,905 INFO L87 Difference]: Start difference. First operand 358 states and 575 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:13:37,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:37,895 INFO L93 Difference]: Finished difference Result 803 states and 1319 transitions. [2023-11-29 04:13:37,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:13:37,896 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 105 [2023-11-29 04:13:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:37,900 INFO L225 Difference]: With dead ends: 803 [2023-11-29 04:13:37,900 INFO L226 Difference]: Without dead ends: 468 [2023-11-29 04:13:37,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:13:37,903 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 866 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 3413 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 3731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 3413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:37,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 1653 Invalid, 3731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 3413 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:13:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-29 04:13:37,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 360. [2023-11-29 04:13:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 276 states have (on average 1.6231884057971016) internal successors, (448), 282 states have internal predecessors, (448), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 59 states have call predecessors, (72), 60 states have call successors, (72) [2023-11-29 04:13:37,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 581 transitions. [2023-11-29 04:13:37,938 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 581 transitions. Word has length 105 [2023-11-29 04:13:37,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:37,939 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 581 transitions. [2023-11-29 04:13:37,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:13:37,939 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 581 transitions. [2023-11-29 04:13:37,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 04:13:37,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:37,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:37,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 04:13:37,942 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:37,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:37,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1029035086, now seen corresponding path program 1 times [2023-11-29 04:13:37,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:37,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941833803] [2023-11-29 04:13:37,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:37,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 04:13:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 04:13:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:13:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 04:13:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:13:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 04:13:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 04:13:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-29 04:13:38,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:38,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941833803] [2023-11-29 04:13:38,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941833803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:38,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:38,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:13:38,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049237421] [2023-11-29 04:13:38,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:38,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:13:38,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:38,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:13:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:13:38,146 INFO L87 Difference]: Start difference. First operand 360 states and 581 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:39,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:39,728 INFO L93 Difference]: Finished difference Result 805 states and 1322 transitions. [2023-11-29 04:13:39,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:13:39,728 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2023-11-29 04:13:39,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:39,731 INFO L225 Difference]: With dead ends: 805 [2023-11-29 04:13:39,732 INFO L226 Difference]: Without dead ends: 468 [2023-11-29 04:13:39,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:13:39,733 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 863 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2042 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 2042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:39,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 1190 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 2042 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:13:39,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-29 04:13:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 360. [2023-11-29 04:13:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 276 states have (on average 1.6231884057971016) internal successors, (448), 282 states have internal predecessors, (448), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 59 states have call predecessors, (72), 60 states have call successors, (72) [2023-11-29 04:13:39,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 581 transitions. [2023-11-29 04:13:39,763 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 581 transitions. Word has length 106 [2023-11-29 04:13:39,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:39,763 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 581 transitions. [2023-11-29 04:13:39,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:13:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 581 transitions. [2023-11-29 04:13:39,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 04:13:39,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:39,765 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:39,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 04:13:39,766 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:39,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:39,766 INFO L85 PathProgramCache]: Analyzing trace with hash -297067660, now seen corresponding path program 1 times [2023-11-29 04:13:39,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:39,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695251425] [2023-11-29 04:13:39,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:39,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 04:13:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 04:13:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:13:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 04:13:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:13:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 04:13:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 04:13:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:39,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:39,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695251425] [2023-11-29 04:13:39,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695251425] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:39,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222700193] [2023-11-29 04:13:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:39,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:39,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:39,921 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:39,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:13:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:40,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:13:40,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:40,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:13:40,287 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:40,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222700193] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:13:40,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:13:40,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-11-29 04:13:40,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513689253] [2023-11-29 04:13:40,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:13:40,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:13:40,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:40,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:13:40,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:13:40,291 INFO L87 Difference]: Start difference. First operand 360 states and 581 transitions. Second operand has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 04:13:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:42,132 INFO L93 Difference]: Finished difference Result 989 states and 1695 transitions. [2023-11-29 04:13:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:13:42,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2023-11-29 04:13:42,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:42,139 INFO L225 Difference]: With dead ends: 989 [2023-11-29 04:13:42,139 INFO L226 Difference]: Without dead ends: 888 [2023-11-29 04:13:42,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:13:42,141 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1235 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:42,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 1504 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:13:42,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-11-29 04:13:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 765. [2023-11-29 04:13:42,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 602 states have (on average 1.6744186046511629) internal successors, (1008), 608 states have internal predecessors, (1008), 140 states have call successors, (140), 18 states have call predecessors, (140), 22 states have return successors, (161), 138 states have call predecessors, (161), 139 states have call successors, (161) [2023-11-29 04:13:42,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1309 transitions. [2023-11-29 04:13:42,196 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1309 transitions. Word has length 106 [2023-11-29 04:13:42,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:42,196 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 1309 transitions. [2023-11-29 04:13:42,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 04:13:42,197 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1309 transitions. [2023-11-29 04:13:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 04:13:42,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:42,203 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:42,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:13:42,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:42,403 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:42,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:42,404 INFO L85 PathProgramCache]: Analyzing trace with hash -488121577, now seen corresponding path program 1 times [2023-11-29 04:13:42,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:42,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662474] [2023-11-29 04:13:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 04:13:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 04:13:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 04:13:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:13:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 04:13:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 04:13:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 04:13:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:42,511 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:42,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:42,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662474] [2023-11-29 04:13:42,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:42,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:42,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:13:42,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128257873] [2023-11-29 04:13:42,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:42,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:13:42,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:42,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:13:42,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:13:42,514 INFO L87 Difference]: Start difference. First operand 765 states and 1309 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:43,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:43,804 INFO L93 Difference]: Finished difference Result 1985 states and 3474 transitions. [2023-11-29 04:13:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:13:43,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2023-11-29 04:13:43,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:43,813 INFO L225 Difference]: With dead ends: 1985 [2023-11-29 04:13:43,813 INFO L226 Difference]: Without dead ends: 1280 [2023-11-29 04:13:43,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:43,816 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 983 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:43,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 912 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:13:43,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2023-11-29 04:13:43,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1167. [2023-11-29 04:13:43,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 925 states have (on average 1.681081081081081) internal successors, (1555), 931 states have internal predecessors, (1555), 219 states have call successors, (219), 18 states have call predecessors, (219), 22 states have return successors, (250), 217 states have call predecessors, (250), 218 states have call successors, (250) [2023-11-29 04:13:43,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 2024 transitions. [2023-11-29 04:13:43,894 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 2024 transitions. Word has length 112 [2023-11-29 04:13:43,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:43,894 INFO L495 AbstractCegarLoop]: Abstraction has 1167 states and 2024 transitions. [2023-11-29 04:13:43,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:43,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 2024 transitions. [2023-11-29 04:13:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 04:13:43,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:43,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:43,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 04:13:43,904 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:43,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash 807248096, now seen corresponding path program 1 times [2023-11-29 04:13:43,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:43,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048111268] [2023-11-29 04:13:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:43,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:43,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:43,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:43,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:13:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 04:13:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 04:13:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 04:13:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 04:13:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 04:13:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 04:13:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:44,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:44,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048111268] [2023-11-29 04:13:44,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048111268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:44,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:44,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:13:44,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924394055] [2023-11-29 04:13:44,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:44,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:13:44,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:44,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:13:44,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:13:44,042 INFO L87 Difference]: Start difference. First operand 1167 states and 2024 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:45,374 INFO L93 Difference]: Finished difference Result 2968 states and 5221 transitions. [2023-11-29 04:13:45,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:13:45,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2023-11-29 04:13:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:45,387 INFO L225 Difference]: With dead ends: 2968 [2023-11-29 04:13:45,387 INFO L226 Difference]: Without dead ends: 1911 [2023-11-29 04:13:45,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:45,391 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 980 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:45,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 892 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:13:45,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2023-11-29 04:13:45,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1798. [2023-11-29 04:13:45,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1437 states have (on average 1.6847599164926932) internal successors, (2421), 1443 states have internal predecessors, (2421), 338 states have call successors, (338), 18 states have call predecessors, (338), 22 states have return successors, (369), 336 states have call predecessors, (369), 337 states have call successors, (369) [2023-11-29 04:13:45,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 3128 transitions. [2023-11-29 04:13:45,494 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 3128 transitions. Word has length 113 [2023-11-29 04:13:45,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:45,494 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 3128 transitions. [2023-11-29 04:13:45,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:45,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 3128 transitions. [2023-11-29 04:13:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 04:13:45,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:45,503 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:45,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 04:13:45,503 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:45,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1852513643, now seen corresponding path program 1 times [2023-11-29 04:13:45,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:45,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462164139] [2023-11-29 04:13:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:45,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 04:13:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:13:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:13:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 04:13:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 04:13:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:13:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:13:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:45,602 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:45,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:45,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462164139] [2023-11-29 04:13:45,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462164139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:45,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:45,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:13:45,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585490784] [2023-11-29 04:13:45,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:45,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:13:45,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:45,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:13:45,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:13:45,605 INFO L87 Difference]: Start difference. First operand 1798 states and 3128 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:46,946 INFO L93 Difference]: Finished difference Result 4448 states and 7873 transitions. [2023-11-29 04:13:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:13:46,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2023-11-29 04:13:46,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:46,966 INFO L225 Difference]: With dead ends: 4448 [2023-11-29 04:13:46,967 INFO L226 Difference]: Without dead ends: 2880 [2023-11-29 04:13:46,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:46,973 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 977 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:46,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 878 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:13:46,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2023-11-29 04:13:47,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2767. [2023-11-29 04:13:47,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2767 states, 2244 states have (on average 1.6885026737967914) internal successors, (3789), 2250 states have internal predecessors, (3789), 500 states have call successors, (500), 18 states have call predecessors, (500), 22 states have return successors, (547), 498 states have call predecessors, (547), 499 states have call successors, (547) [2023-11-29 04:13:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 4836 transitions. [2023-11-29 04:13:47,128 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 4836 transitions. Word has length 114 [2023-11-29 04:13:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:47,128 INFO L495 AbstractCegarLoop]: Abstraction has 2767 states and 4836 transitions. [2023-11-29 04:13:47,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 4836 transitions. [2023-11-29 04:13:47,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 04:13:47,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:47,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:47,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 04:13:47,145 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:47,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:47,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1184739073, now seen corresponding path program 1 times [2023-11-29 04:13:47,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:47,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404821747] [2023-11-29 04:13:47,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:47,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 04:13:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:13:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 04:13:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 04:13:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 04:13:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 04:13:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 04:13:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:47,263 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:47,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:47,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404821747] [2023-11-29 04:13:47,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404821747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:47,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:47,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:13:47,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589924832] [2023-11-29 04:13:47,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:47,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:13:47,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:47,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:13:47,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:13:47,266 INFO L87 Difference]: Start difference. First operand 2767 states and 4836 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:48,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:48,587 INFO L93 Difference]: Finished difference Result 6788 states and 12078 transitions. [2023-11-29 04:13:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:13:48,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2023-11-29 04:13:48,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:48,618 INFO L225 Difference]: With dead ends: 6788 [2023-11-29 04:13:48,619 INFO L226 Difference]: Without dead ends: 4448 [2023-11-29 04:13:48,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:48,627 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 978 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:48,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 877 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:13:48,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2023-11-29 04:13:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 4335. [2023-11-29 04:13:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4335 states, 3567 states have (on average 1.6913372582001682) internal successors, (6033), 3573 states have internal predecessors, (6033), 745 states have call successors, (745), 18 states have call predecessors, (745), 22 states have return successors, (818), 743 states have call predecessors, (818), 744 states have call successors, (818) [2023-11-29 04:13:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4335 states to 4335 states and 7596 transitions. [2023-11-29 04:13:48,874 INFO L78 Accepts]: Start accepts. Automaton has 4335 states and 7596 transitions. Word has length 115 [2023-11-29 04:13:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:48,874 INFO L495 AbstractCegarLoop]: Abstraction has 4335 states and 7596 transitions. [2023-11-29 04:13:48,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4335 states and 7596 transitions. [2023-11-29 04:13:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 04:13:48,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:48,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:48,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 04:13:48,892 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:48,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1150281927, now seen corresponding path program 1 times [2023-11-29 04:13:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:48,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115298822] [2023-11-29 04:13:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:48,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:48,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:48,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 04:13:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:49,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 04:13:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:49,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 04:13:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 04:13:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:49,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 04:13:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:49,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 04:13:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:49,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 04:13:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:49,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:49,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115298822] [2023-11-29 04:13:49,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115298822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:49,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:49,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:13:49,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423994781] [2023-11-29 04:13:49,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:49,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:13:49,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:13:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:13:49,015 INFO L87 Difference]: Start difference. First operand 4335 states and 7596 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:50,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:50,501 INFO L93 Difference]: Finished difference Result 10741 states and 19145 transitions. [2023-11-29 04:13:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:13:50,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2023-11-29 04:13:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:50,547 INFO L225 Difference]: With dead ends: 10741 [2023-11-29 04:13:50,547 INFO L226 Difference]: Without dead ends: 7120 [2023-11-29 04:13:50,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:50,559 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 975 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:50,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 894 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:13:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2023-11-29 04:13:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 7007. [2023-11-29 04:13:50,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 5746 states have (on average 1.6841280891054646) internal successors, (9677), 5752 states have internal predecessors, (9677), 1238 states have call successors, (1238), 18 states have call predecessors, (1238), 22 states have return successors, (1355), 1236 states have call predecessors, (1355), 1237 states have call successors, (1355) [2023-11-29 04:13:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 12270 transitions. [2023-11-29 04:13:50,831 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 12270 transitions. Word has length 116 [2023-11-29 04:13:50,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:50,832 INFO L495 AbstractCegarLoop]: Abstraction has 7007 states and 12270 transitions. [2023-11-29 04:13:50,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 12270 transitions. [2023-11-29 04:13:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 04:13:50,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:50,851 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:50,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 04:13:50,851 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:50,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash 498152539, now seen corresponding path program 1 times [2023-11-29 04:13:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:50,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650126665] [2023-11-29 04:13:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:50,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 04:13:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:13:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 04:13:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 04:13:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 04:13:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 04:13:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 04:13:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:50,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:50,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650126665] [2023-11-29 04:13:50,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650126665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:50,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:50,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:13:50,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767346281] [2023-11-29 04:13:50,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:50,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:13:50,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:50,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:13:50,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:13:50,952 INFO L87 Difference]: Start difference. First operand 7007 states and 12270 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:52,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:52,340 INFO L93 Difference]: Finished difference Result 17876 states and 31829 transitions. [2023-11-29 04:13:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:13:52,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2023-11-29 04:13:52,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:52,443 INFO L225 Difference]: With dead ends: 17876 [2023-11-29 04:13:52,443 INFO L226 Difference]: Without dead ends: 11949 [2023-11-29 04:13:52,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:52,461 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 972 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:52,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 879 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:13:52,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11949 states. [2023-11-29 04:13:53,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11949 to 11836. [2023-11-29 04:13:53,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11836 states, 9753 states have (on average 1.683276940428586) internal successors, (16417), 9759 states have internal predecessors, (16417), 2060 states have call successors, (2060), 18 states have call predecessors, (2060), 22 states have return successors, (2255), 2058 states have call predecessors, (2255), 2059 states have call successors, (2255) [2023-11-29 04:13:53,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11836 states to 11836 states and 20732 transitions. [2023-11-29 04:13:53,102 INFO L78 Accepts]: Start accepts. Automaton has 11836 states and 20732 transitions. Word has length 117 [2023-11-29 04:13:53,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:53,103 INFO L495 AbstractCegarLoop]: Abstraction has 11836 states and 20732 transitions. [2023-11-29 04:13:53,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 11836 states and 20732 transitions. [2023-11-29 04:13:53,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 04:13:53,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:53,134 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:53,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 04:13:53,134 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:53,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:53,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1617588971, now seen corresponding path program 1 times [2023-11-29 04:13:53,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:53,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142789972] [2023-11-29 04:13:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 04:13:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 04:13:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 04:13:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 04:13:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 04:13:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 04:13:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 04:13:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:53,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:53,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142789972] [2023-11-29 04:13:53,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142789972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:53,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:53,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:13:53,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525181149] [2023-11-29 04:13:53,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:53,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:13:53,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:53,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:13:53,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:13:53,257 INFO L87 Difference]: Start difference. First operand 11836 states and 20732 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:55,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:55,014 INFO L93 Difference]: Finished difference Result 28422 states and 50382 transitions. [2023-11-29 04:13:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:13:55,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-11-29 04:13:55,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:55,080 INFO L225 Difference]: With dead ends: 28422 [2023-11-29 04:13:55,080 INFO L226 Difference]: Without dead ends: 18621 [2023-11-29 04:13:55,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:55,104 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 971 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:55,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 852 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:13:55,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18621 states. [2023-11-29 04:13:56,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18621 to 18508. [2023-11-29 04:13:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18508 states, 15222 states have (on average 1.6606227828143476) internal successors, (25278), 15228 states have internal predecessors, (25278), 3263 states have call successors, (3263), 18 states have call predecessors, (3263), 22 states have return successors, (3602), 3261 states have call predecessors, (3602), 3262 states have call successors, (3602) [2023-11-29 04:13:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18508 states to 18508 states and 32143 transitions. [2023-11-29 04:13:56,173 INFO L78 Accepts]: Start accepts. Automaton has 18508 states and 32143 transitions. Word has length 118 [2023-11-29 04:13:56,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:56,173 INFO L495 AbstractCegarLoop]: Abstraction has 18508 states and 32143 transitions. [2023-11-29 04:13:56,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 18508 states and 32143 transitions. [2023-11-29 04:13:56,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 04:13:56,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:56,202 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:56,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 04:13:56,202 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:13:56,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:56,203 INFO L85 PathProgramCache]: Analyzing trace with hash -2060183718, now seen corresponding path program 1 times [2023-11-29 04:13:56,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:56,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319770881] [2023-11-29 04:13:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:56,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:13:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:13:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:13:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:13:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:13:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:13:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:13:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 04:13:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:13:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 04:13:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:13:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 04:13:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:13:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:13:56,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:56,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319770881] [2023-11-29 04:13:56,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319770881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:13:56,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:13:56,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:13:56,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529982214] [2023-11-29 04:13:56,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:13:56,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:13:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:56,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:13:56,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:13:56,320 INFO L87 Difference]: Start difference. First operand 18508 states and 32143 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:58,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:58,378 INFO L93 Difference]: Finished difference Result 49055 states and 86703 transitions. [2023-11-29 04:13:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:13:58,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-11-29 04:13:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:58,487 INFO L225 Difference]: With dead ends: 49055 [2023-11-29 04:13:58,487 INFO L226 Difference]: Without dead ends: 33202 [2023-11-29 04:13:58,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:58,524 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 968 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:58,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 878 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:13:58,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33202 states. [2023-11-29 04:13:59,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33202 to 33089. [2023-11-29 04:13:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33089 states, 27353 states have (on average 1.6576243922056082) internal successors, (45341), 27359 states have internal predecessors, (45341), 5713 states have call successors, (5713), 18 states have call predecessors, (5713), 22 states have return successors, (6326), 5711 states have call predecessors, (6326), 5712 states have call successors, (6326) [2023-11-29 04:13:59,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33089 states to 33089 states and 57380 transitions. [2023-11-29 04:13:59,980 INFO L78 Accepts]: Start accepts. Automaton has 33089 states and 57380 transitions. Word has length 119 [2023-11-29 04:13:59,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:59,980 INFO L495 AbstractCegarLoop]: Abstraction has 33089 states and 57380 transitions. [2023-11-29 04:13:59,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:13:59,981 INFO L276 IsEmpty]: Start isEmpty. Operand 33089 states and 57380 transitions. [2023-11-29 04:14:00,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 04:14:00,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:14:00,007 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:14:00,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 04:14:00,007 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:14:00,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:14:00,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1674673167, now seen corresponding path program 1 times [2023-11-29 04:14:00,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:14:00,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925638478] [2023-11-29 04:14:00,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:00,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:14:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:14:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:14:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:14:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:14:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:14:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:14:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:14:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 04:14:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 04:14:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 04:14:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 04:14:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:14:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 04:14:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:14:00,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:14:00,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925638478] [2023-11-29 04:14:00,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925638478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:14:00,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:14:00,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:14:00,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948374038] [2023-11-29 04:14:00,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:14:00,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:14:00,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:14:00,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:14:00,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:14:00,124 INFO L87 Difference]: Start difference. First operand 33089 states and 57380 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:14:02,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:14:02,948 INFO L93 Difference]: Finished difference Result 90357 states and 158927 transitions. [2023-11-29 04:14:02,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:14:02,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-11-29 04:14:02,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:14:03,186 INFO L225 Difference]: With dead ends: 90357 [2023-11-29 04:14:03,186 INFO L226 Difference]: Without dead ends: 60814 [2023-11-29 04:14:03,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:14:03,274 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 967 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:14:03,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 884 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:14:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60814 states. [2023-11-29 04:14:05,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60814 to 60701. [2023-11-29 04:14:05,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60701 states, 50452 states have (on average 1.6537897407436772) internal successors, (83437), 50458 states have internal predecessors, (83437), 10226 states have call successors, (10226), 18 states have call predecessors, (10226), 22 states have return successors, (11371), 10224 states have call predecessors, (11371), 10225 states have call successors, (11371) [2023-11-29 04:14:05,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60701 states to 60701 states and 105034 transitions. [2023-11-29 04:14:05,632 INFO L78 Accepts]: Start accepts. Automaton has 60701 states and 105034 transitions. Word has length 120 [2023-11-29 04:14:05,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:14:05,632 INFO L495 AbstractCegarLoop]: Abstraction has 60701 states and 105034 transitions. [2023-11-29 04:14:05,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:14:05,633 INFO L276 IsEmpty]: Start isEmpty. Operand 60701 states and 105034 transitions. [2023-11-29 04:14:05,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 04:14:05,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:14:05,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:14:05,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 04:14:05,667 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:14:05,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:14:05,668 INFO L85 PathProgramCache]: Analyzing trace with hash -382871590, now seen corresponding path program 1 times [2023-11-29 04:14:05,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:14:05,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145396856] [2023-11-29 04:14:05,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:05,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:14:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:14:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:14:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:14:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:14:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:14:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:14:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 04:14:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 04:14:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 04:14:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 04:14:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 04:14:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 04:14:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 04:14:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:14:05,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:14:05,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145396856] [2023-11-29 04:14:05,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145396856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:14:05,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:14:05,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:14:05,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538213928] [2023-11-29 04:14:05,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:14:05,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:14:05,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:14:05,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:14:05,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:14:05,787 INFO L87 Difference]: Start difference. First operand 60701 states and 105034 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:14:09,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:14:09,697 INFO L93 Difference]: Finished difference Result 113709 states and 200537 transitions. [2023-11-29 04:14:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:14:09,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-11-29 04:14:09,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:14:10,023 INFO L225 Difference]: With dead ends: 113709 [2023-11-29 04:14:10,024 INFO L226 Difference]: Without dead ends: 113608 [2023-11-29 04:14:10,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:14:10,056 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 964 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:14:10,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 878 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:14:10,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113608 states. [2023-11-29 04:14:14,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113608 to 113495. [2023-11-29 04:14:14,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113495 states, 94878 states have (on average 1.648949176837623) internal successors, (156449), 94884 states have internal predecessors, (156449), 18594 states have call successors, (18594), 18 states have call predecessors, (18594), 22 states have return successors, (20785), 18592 states have call predecessors, (20785), 18593 states have call successors, (20785) [2023-11-29 04:14:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113495 states to 113495 states and 195828 transitions. [2023-11-29 04:14:14,594 INFO L78 Accepts]: Start accepts. Automaton has 113495 states and 195828 transitions. Word has length 121 [2023-11-29 04:14:14,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:14:14,595 INFO L495 AbstractCegarLoop]: Abstraction has 113495 states and 195828 transitions. [2023-11-29 04:14:14,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:14:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 113495 states and 195828 transitions. [2023-11-29 04:14:14,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 04:14:14,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:14:14,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:14:14,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 04:14:14,622 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:14:14,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:14:14,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1710532722, now seen corresponding path program 1 times [2023-11-29 04:14:14,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:14:14,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469483155] [2023-11-29 04:14:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:14,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:14:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:14:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:14:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:14:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:14:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:14:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:14:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:14:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:14:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:14:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 04:14:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 04:14:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 04:14:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 04:14:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:14:15,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:14:15,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469483155] [2023-11-29 04:14:15,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469483155] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:14:15,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828765501] [2023-11-29 04:14:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:15,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:14:15,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:14:15,463 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:14:15,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:14:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:15,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:14:15,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:14:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 04:14:15,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:14:15,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828765501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:14:15,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:14:15,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18] total 27 [2023-11-29 04:14:15,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797638773] [2023-11-29 04:14:15,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:14:15,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:14:15,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:14:15,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:14:15,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2023-11-29 04:14:15,973 INFO L87 Difference]: Start difference. First operand 113495 states and 195828 transitions. Second operand has 11 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:14:18,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:14:18,947 INFO L93 Difference]: Finished difference Result 113715 states and 196148 transitions. [2023-11-29 04:14:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:14:18,948 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 122 [2023-11-29 04:14:18,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:14:19,406 INFO L225 Difference]: With dead ends: 113715 [2023-11-29 04:14:19,406 INFO L226 Difference]: Without dead ends: 113619 [2023-11-29 04:14:19,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=1313, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 04:14:19,442 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 572 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:14:19,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 3710 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:14:19,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113619 states. [2023-11-29 04:14:23,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113619 to 113605. [2023-11-29 04:14:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113605 states, 94959 states have (on average 1.6488063269411009) internal successors, (156569), 94966 states have internal predecessors, (156569), 18611 states have call successors, (18611), 28 states have call predecessors, (18611), 34 states have return successors, (20812), 18610 states have call predecessors, (20812), 18609 states have call successors, (20812) [2023-11-29 04:14:23,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113605 states to 113605 states and 195992 transitions. [2023-11-29 04:14:23,766 INFO L78 Accepts]: Start accepts. Automaton has 113605 states and 195992 transitions. Word has length 122 [2023-11-29 04:14:23,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:14:23,767 INFO L495 AbstractCegarLoop]: Abstraction has 113605 states and 195992 transitions. [2023-11-29 04:14:23,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:14:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 113605 states and 195992 transitions. [2023-11-29 04:14:23,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 04:14:23,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:14:23,795 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:14:23,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:14:23,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:14:23,995 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:14:23,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:14:23,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1511919925, now seen corresponding path program 1 times [2023-11-29 04:14:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:14:23,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574517464] [2023-11-29 04:14:23,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:23,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:14:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:14:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:14:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:14:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:14:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:14:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:14:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:14:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:14:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:14:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 04:14:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 04:14:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 04:14:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 04:14:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:14:24,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:14:24,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574517464] [2023-11-29 04:14:24,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574517464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:14:24,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:14:24,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:14:24,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808414455] [2023-11-29 04:14:24,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:14:24,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:14:24,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:14:24,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:14:24,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:14:24,171 INFO L87 Difference]: Start difference. First operand 113605 states and 195992 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:14:32,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:14:32,132 INFO L93 Difference]: Finished difference Result 221997 states and 389778 transitions. [2023-11-29 04:14:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 04:14:32,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-11-29 04:14:32,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:14:32,897 INFO L225 Difference]: With dead ends: 221997 [2023-11-29 04:14:32,897 INFO L226 Difference]: Without dead ends: 221805 [2023-11-29 04:14:33,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:14:33,123 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 2073 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:14:33,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 1210 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:14:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221805 states. [2023-11-29 04:14:41,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221805 to 221423. [2023-11-29 04:14:41,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221423 states, 185126 states have (on average 1.6505623197173818) internal successors, (305562), 185139 states have internal predecessors, (305562), 36228 states have call successors, (36228), 53 states have call predecessors, (36228), 68 states have return successors, (38466), 36230 states have call predecessors, (38466), 36224 states have call successors, (38466) [2023-11-29 04:14:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221423 states to 221423 states and 380256 transitions. [2023-11-29 04:14:42,667 INFO L78 Accepts]: Start accepts. Automaton has 221423 states and 380256 transitions. Word has length 123 [2023-11-29 04:14:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:14:42,668 INFO L495 AbstractCegarLoop]: Abstraction has 221423 states and 380256 transitions. [2023-11-29 04:14:42,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:14:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 221423 states and 380256 transitions. [2023-11-29 04:14:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 04:14:42,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:14:42,709 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:14:42,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 04:14:42,709 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:14:42,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:14:42,710 INFO L85 PathProgramCache]: Analyzing trace with hash 606644270, now seen corresponding path program 1 times [2023-11-29 04:14:42,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:14:42,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529619468] [2023-11-29 04:14:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:42,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:14:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:14:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:14:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:14:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:14:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:14:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:14:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:14:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:14:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:14:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 04:14:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:14:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 04:14:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 04:14:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:42,876 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 04:14:42,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:14:42,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529619468] [2023-11-29 04:14:42,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529619468] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:14:42,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767789642] [2023-11-29 04:14:42,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:42,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:14:42,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:14:42,878 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:14:42,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:14:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:43,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:14:43,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:14:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 04:14:43,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:14:43,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767789642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:14:43,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:14:43,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 04:14:43,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943997963] [2023-11-29 04:14:43,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:14:43,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:14:43,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:14:43,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:14:43,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:14:43,170 INFO L87 Difference]: Start difference. First operand 221423 states and 380256 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:14:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:14:48,700 INFO L93 Difference]: Finished difference Result 221677 states and 380641 transitions. [2023-11-29 04:14:48,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:14:48,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 123 [2023-11-29 04:14:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:14:49,371 INFO L225 Difference]: With dead ends: 221677 [2023-11-29 04:14:49,371 INFO L226 Difference]: Without dead ends: 221427 [2023-11-29 04:14:49,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:14:49,432 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 4 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:14:49,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1697 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:14:49,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221427 states. [2023-11-29 04:14:57,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221427 to 221423. [2023-11-29 04:14:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221423 states, 185126 states have (on average 1.6505623197173818) internal successors, (305562), 185139 states have internal predecessors, (305562), 36228 states have call successors, (36228), 53 states have call predecessors, (36228), 68 states have return successors, (38464), 36230 states have call predecessors, (38464), 36224 states have call successors, (38464) [2023-11-29 04:14:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221423 states to 221423 states and 380254 transitions. [2023-11-29 04:14:58,873 INFO L78 Accepts]: Start accepts. Automaton has 221423 states and 380254 transitions. Word has length 123 [2023-11-29 04:14:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:14:58,873 INFO L495 AbstractCegarLoop]: Abstraction has 221423 states and 380254 transitions. [2023-11-29 04:14:58,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:14:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 221423 states and 380254 transitions. [2023-11-29 04:14:58,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 04:14:58,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:14:58,914 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:14:58,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:14:59,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 04:14:59,115 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:14:59,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:14:59,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1442743572, now seen corresponding path program 1 times [2023-11-29 04:14:59,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:14:59,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075693859] [2023-11-29 04:14:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:59,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:14:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:14:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:14:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:14:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:14:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:14:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:14:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:14:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:14:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:14:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 04:14:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:14:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 04:14:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 04:14:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 04:14:59,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:14:59,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075693859] [2023-11-29 04:14:59,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075693859] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:14:59,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007930042] [2023-11-29 04:14:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:14:59,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:14:59,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:14:59,665 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:14:59,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:14:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:14:59,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:14:59,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:15:00,059 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 04:15:00,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:15:00,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007930042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:15:00,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:15:00,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2023-11-29 04:15:00,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581387743] [2023-11-29 04:15:00,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:15:00,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:15:00,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:15:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:15:00,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:15:00,061 INFO L87 Difference]: Start difference. First operand 221423 states and 380254 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:15:06,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:15:06,443 INFO L93 Difference]: Finished difference Result 221975 states and 381143 transitions. [2023-11-29 04:15:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:15:06,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-11-29 04:15:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:15:07,294 INFO L225 Difference]: With dead ends: 221975 [2023-11-29 04:15:07,295 INFO L226 Difference]: Without dead ends: 221721 [2023-11-29 04:15:07,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:15:07,345 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 532 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:15:07,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1291 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:15:07,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221721 states. [2023-11-29 04:15:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221721 to 221619. [2023-11-29 04:15:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221619 states, 185272 states have (on average 1.6504166846582322) internal successors, (305776), 185287 states have internal predecessors, (305776), 36260 states have call successors, (36260), 69 states have call predecessors, (36260), 86 states have return successors, (38504), 36262 states have call predecessors, (38504), 36250 states have call successors, (38504) [2023-11-29 04:15:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221619 states to 221619 states and 380540 transitions. [2023-11-29 04:15:16,958 INFO L78 Accepts]: Start accepts. Automaton has 221619 states and 380540 transitions. Word has length 123 [2023-11-29 04:15:16,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:15:16,959 INFO L495 AbstractCegarLoop]: Abstraction has 221619 states and 380540 transitions. [2023-11-29 04:15:16,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:15:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 221619 states and 380540 transitions. [2023-11-29 04:15:17,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 04:15:17,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:15:17,409 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:15:17,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:15:17,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 04:15:17,610 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:15:17,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:15:17,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1051261571, now seen corresponding path program 1 times [2023-11-29 04:15:17,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:15:17,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940758637] [2023-11-29 04:15:17,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:15:17,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:15:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:15:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:15:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:15:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:15:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:15:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:15:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:15:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:15:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:15:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 04:15:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 04:15:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 04:15:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 04:15:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:17,849 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:15:17,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:15:17,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940758637] [2023-11-29 04:15:17,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940758637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:15:17,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:15:17,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-29 04:15:17,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355715662] [2023-11-29 04:15:17,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:15:17,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:15:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:15:17,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:15:17,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:15:17,852 INFO L87 Difference]: Start difference. First operand 221619 states and 380540 transitions. Second operand has 15 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 7 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 04:15:26,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:15:26,960 INFO L93 Difference]: Finished difference Result 223545 states and 390282 transitions. [2023-11-29 04:15:26,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 04:15:26,960 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 7 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 123 [2023-11-29 04:15:26,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:15:27,675 INFO L225 Difference]: With dead ends: 223545 [2023-11-29 04:15:27,675 INFO L226 Difference]: Without dead ends: 222867 [2023-11-29 04:15:27,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=346, Invalid=1634, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 04:15:27,733 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1282 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 4536 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 5034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 4536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:15:27,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 2159 Invalid, 5034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 4536 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 04:15:27,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222867 states. [2023-11-29 04:15:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222867 to 221885. [2023-11-29 04:15:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221885 states, 185458 states have (on average 1.6501202428582213) internal successors, (306028), 185479 states have internal predecessors, (306028), 36330 states have call successors, (36330), 79 states have call predecessors, (36330), 96 states have return successors, (38594), 36326 states have call predecessors, (38594), 36312 states have call successors, (38594) [2023-11-29 04:15:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221885 states to 221885 states and 380952 transitions. [2023-11-29 04:15:37,243 INFO L78 Accepts]: Start accepts. Automaton has 221885 states and 380952 transitions. Word has length 123 [2023-11-29 04:15:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:15:37,243 INFO L495 AbstractCegarLoop]: Abstraction has 221885 states and 380952 transitions. [2023-11-29 04:15:37,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 7 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 04:15:37,244 INFO L276 IsEmpty]: Start isEmpty. Operand 221885 states and 380952 transitions. [2023-11-29 04:15:37,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 04:15:37,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:15:37,288 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:15:37,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 04:15:37,289 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:15:37,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:15:37,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1402285033, now seen corresponding path program 1 times [2023-11-29 04:15:37,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:15:37,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861032530] [2023-11-29 04:15:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:15:37,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:15:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:15:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:15:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:15:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:15:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:15:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:15:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:15:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:15:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:15:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 04:15:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 04:15:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 04:15:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 04:15:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 04:15:37,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:15:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861032530] [2023-11-29 04:15:37,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861032530] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:15:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491016578] [2023-11-29 04:15:37,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:15:37,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:15:37,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:15:37,603 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:15:37,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:15:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:37,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:15:37,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:15:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 04:15:38,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:15:38,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491016578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:15:38,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:15:38,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2023-11-29 04:15:38,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704847445] [2023-11-29 04:15:38,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:15:38,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:15:38,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:15:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:15:38,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:15:38,482 INFO L87 Difference]: Start difference. First operand 221885 states and 380952 transitions. Second operand has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:15:45,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:15:45,262 INFO L93 Difference]: Finished difference Result 222501 states and 381879 transitions. [2023-11-29 04:15:45,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:15:45,263 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 124 [2023-11-29 04:15:45,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:15:45,921 INFO L225 Difference]: With dead ends: 222501 [2023-11-29 04:15:45,921 INFO L226 Difference]: Without dead ends: 221887 [2023-11-29 04:15:45,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 04:15:45,977 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 774 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 3485 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:15:45,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 3485 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:15:46,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221887 states. [2023-11-29 04:15:54,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221887 to 221854. [2023-11-29 04:15:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221854 states, 185435 states have (on average 1.6501415590368593) internal successors, (305994), 185456 states have internal predecessors, (305994), 36323 states have call successors, (36323), 79 states have call predecessors, (36323), 95 states have return successors, (38579), 36318 states have call predecessors, (38579), 36305 states have call successors, (38579) [2023-11-29 04:15:55,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221854 states to 221854 states and 380896 transitions. [2023-11-29 04:15:55,941 INFO L78 Accepts]: Start accepts. Automaton has 221854 states and 380896 transitions. Word has length 124 [2023-11-29 04:15:55,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:15:55,941 INFO L495 AbstractCegarLoop]: Abstraction has 221854 states and 380896 transitions. [2023-11-29 04:15:55,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:15:55,942 INFO L276 IsEmpty]: Start isEmpty. Operand 221854 states and 380896 transitions. [2023-11-29 04:15:56,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 04:15:56,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:15:56,022 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:15:56,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 04:15:56,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d16bbf-fb13-45c6-ba43-f42c43ab18b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 04:15:56,222 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:15:56,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:15:56,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1689932577, now seen corresponding path program 1 times [2023-11-29 04:15:56,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:15:56,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031541369] [2023-11-29 04:15:56,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:15:56,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:15:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:15:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:15:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:15:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:15:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:15:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:15:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 04:15:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 04:15:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 04:15:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 04:15:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:15:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 04:15:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 04:15:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:15:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 04:15:56,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:15:56,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031541369] [2023-11-29 04:15:56,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031541369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:15:56,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:15:56,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:15:56,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509516288] [2023-11-29 04:15:56,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:15:56,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:15:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:15:56,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:15:56,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:15:56,320 INFO L87 Difference]: Start difference. First operand 221854 states and 380896 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 04:16:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:05,936 INFO L93 Difference]: Finished difference Result 437179 states and 757548 transitions. [2023-11-29 04:16:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:16:05,937 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2023-11-29 04:16:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:06,704 INFO L225 Difference]: With dead ends: 437179 [2023-11-29 04:16:06,704 INFO L226 Difference]: Without dead ends: 222767 [2023-11-29 04:16:07,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:16:07,197 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1004 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:07,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1500 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:16:07,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222767 states.