./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB --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 c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:29:56,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:29:57,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:29:57,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:29:57,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:29:57,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:29:57,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:29:57,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:29:57,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:29:57,081 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:29:57,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:29:57,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:29:57,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:29:57,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:29:57,083 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:29:57,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:29:57,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:29:57,084 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:29:57,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:29:57,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:29:57,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:29:57,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:29:57,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:29:57,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:29:57,086 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:29:57,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:29:57,086 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:29:57,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:29:57,086 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:29:57,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:29:57,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:29:57,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:29:57,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:29:57,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:29:57,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:29:57,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:29:57,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:29:57,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:29:57,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:29:57,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:29:57,089 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:29:57,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:29:57,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:29:57,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:29:57,090 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:29:57,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:29:57,090 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:29:57,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:29:57,091 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB 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 -> c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a [2024-11-27 23:29:57,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:29:57,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:29:57,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:29:57,458 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:29:57,459 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:29:57,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2024-11-27 23:30:00,627 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/data/1d1d495f4/978c7d8ec2a24c57b68c3c46103649d8/FLAG23ed327a5 [2024-11-27 23:30:01,074 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:30:01,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2024-11-27 23:30:01,107 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/data/1d1d495f4/978c7d8ec2a24c57b68c3c46103649d8/FLAG23ed327a5 [2024-11-27 23:30:01,123 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/data/1d1d495f4/978c7d8ec2a24c57b68c3c46103649d8 [2024-11-27 23:30:01,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:30:01,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:30:01,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:30:01,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:30:01,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:30:01,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:30:01" (1/1) ... [2024-11-27 23:30:01,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce2abe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:01, skipping insertion in model container [2024-11-27 23:30:01,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:30:01" (1/1) ... [2024-11-27 23:30:01,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:30:01,862 WARN L250 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_bd6ebe0e-2340-4313-b25b-b5c96bee3315/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c[58911,58924] [2024-11-27 23:30:01,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:30:01,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:30:01,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2024-11-27 23:30:01,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [418] [2024-11-27 23:30:01,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1490] [2024-11-27 23:30:01,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1588] [2024-11-27 23:30:01,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1989] [2024-11-27 23:30:01,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2006] [2024-11-27 23:30:01,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2235] [2024-11-27 23:30:01,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2267] [2024-11-27 23:30:01,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2633] [2024-11-27 23:30:01,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2642] [2024-11-27 23:30:01,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2933] [2024-11-27 23:30:02,127 WARN L250 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_bd6ebe0e-2340-4313-b25b-b5c96bee3315/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c[58911,58924] [2024-11-27 23:30:02,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:30:02,196 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:30:02,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02 WrapperNode [2024-11-27 23:30:02,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:30:02,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:30:02,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:30:02,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:30:02,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,290 INFO L138 Inliner]: procedures = 130, calls = 201, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1032 [2024-11-27 23:30:02,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:30:02,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:30:02,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:30:02,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:30:02,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,317 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,370 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]. [2024-11-27 23:30:02,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,412 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:30:02,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:30:02,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:30:02,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:30:02,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (1/1) ... [2024-11-27 23:30:02,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:30:02,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:02,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:30:02,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:30:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-27 23:30:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-27 23:30:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-27 23:30:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-27 23:30:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2024-11-27 23:30:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2024-11-27 23:30:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-27 23:30:02,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-27 23:30:02,563 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-27 23:30:02,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-27 23:30:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-27 23:30:02,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-27 23:30:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-27 23:30:02,566 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-27 23:30:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-27 23:30:02,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-27 23:30:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-27 23:30:02,567 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-27 23:30:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-27 23:30:02,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-27 23:30:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-27 23:30:02,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-27 23:30:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:30:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-27 23:30:02,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-27 23:30:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-27 23:30:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-27 23:30:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-27 23:30:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-27 23:30:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-27 23:30:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-27 23:30:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-27 23:30:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-27 23:30:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-27 23:30:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-27 23:30:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-27 23:30:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-27 23:30:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-27 23:30:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-27 23:30:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-27 23:30:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-27 23:30:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-27 23:30:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-27 23:30:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:30:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:30:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:30:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 23:30:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-27 23:30:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-27 23:30:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-27 23:30:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-27 23:30:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:30:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:30:02,912 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:30:02,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:30:04,370 INFO L? ?]: Removed 537 outVars from TransFormulas that were not future-live. [2024-11-27 23:30:04,370 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:30:04,406 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:30:04,406 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:30:04,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:30:04 BoogieIcfgContainer [2024-11-27 23:30:04,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:30:04,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:30:04,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:30:04,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:30:04,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:30:01" (1/3) ... [2024-11-27 23:30:04,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9545ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:30:04, skipping insertion in model container [2024-11-27 23:30:04,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:02" (2/3) ... [2024-11-27 23:30:04,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9545ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:30:04, skipping insertion in model container [2024-11-27 23:30:04,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:30:04" (3/3) ... [2024-11-27 23:30:04,424 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product25.cil.c [2024-11-27 23:30:04,442 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:30:04,448 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product25.cil.c that has 24 procedures, 391 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:30:04,561 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:30:04,581 INFO L333 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, 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;@38afb992, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:30:04,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:30:04,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 308 states have (on average 1.5616883116883118) internal successors, (481), 311 states have internal predecessors, (481), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-27 23:30:04,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 23:30:04,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:04,625 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:04,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:04,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:04,634 INFO L85 PathProgramCache]: Analyzing trace with hash 131661355, now seen corresponding path program 1 times [2024-11-27 23:30:04,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:04,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107230737] [2024-11-27 23:30:04,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:04,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:05,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:05,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107230737] [2024-11-27 23:30:05,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107230737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:05,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049650941] [2024-11-27 23:30:05,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:05,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:05,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:05,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:05,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:30:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:06,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:30:06,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:06,473 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 23:30:06,474 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:06,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049650941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:06,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:06,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 23:30:06,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187244261] [2024-11-27 23:30:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:06,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:06,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:06,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:06,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:06,519 INFO L87 Difference]: Start difference. First operand has 391 states, 308 states have (on average 1.5616883116883118) internal successors, (481), 311 states have internal predecessors, (481), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:30:06,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:06,635 INFO L93 Difference]: Finished difference Result 592 states and 890 transitions. [2024-11-27 23:30:06,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:06,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-11-27 23:30:06,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:06,660 INFO L225 Difference]: With dead ends: 592 [2024-11-27 23:30:06,660 INFO L226 Difference]: Without dead ends: 386 [2024-11-27 23:30:06,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:06,670 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 1 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:06,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1179 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:06,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-27 23:30:06,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 385. [2024-11-27 23:30:06,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 303 states have (on average 1.5544554455445545) internal successors, (471), 305 states have internal predecessors, (471), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 23:30:06,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 586 transitions. [2024-11-27 23:30:06,776 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 586 transitions. Word has length 136 [2024-11-27 23:30:06,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:06,779 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 586 transitions. [2024-11-27 23:30:06,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:30:06,780 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 586 transitions. [2024-11-27 23:30:06,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:30:06,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:06,796 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:06,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:30:06,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:30:06,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:06,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash 164101727, now seen corresponding path program 1 times [2024-11-27 23:30:06,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:06,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148396876] [2024-11-27 23:30:06,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:06,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 23:30:07,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:07,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148396876] [2024-11-27 23:30:07,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148396876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420717053] [2024-11-27 23:30:07,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:07,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:07,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:07,589 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:07,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:30:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:08,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:30:08,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:08,183 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 23:30:08,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:08,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420717053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:08,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:08,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 23:30:08,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024016980] [2024-11-27 23:30:08,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:08,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:08,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:08,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:08,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:08,191 INFO L87 Difference]: Start difference. First operand 385 states and 586 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:30:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:08,302 INFO L93 Difference]: Finished difference Result 818 states and 1264 transitions. [2024-11-27 23:30:08,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:08,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 141 [2024-11-27 23:30:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:08,313 INFO L225 Difference]: With dead ends: 818 [2024-11-27 23:30:08,315 INFO L226 Difference]: Without dead ends: 459 [2024-11-27 23:30:08,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:08,320 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 134 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:08,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1128 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:08,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-27 23:30:08,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 451. [2024-11-27 23:30:08,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 355 states have (on average 1.5746478873239436) internal successors, (559), 357 states have internal predecessors, (559), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-27 23:30:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 702 transitions. [2024-11-27 23:30:08,401 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 702 transitions. Word has length 141 [2024-11-27 23:30:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:08,403 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 702 transitions. [2024-11-27 23:30:08,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:30:08,403 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 702 transitions. [2024-11-27 23:30:08,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-27 23:30:08,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:08,413 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:08,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:30:08,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:08,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:08,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:08,614 INFO L85 PathProgramCache]: Analyzing trace with hash 972506648, now seen corresponding path program 1 times [2024-11-27 23:30:08,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:08,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213584599] [2024-11-27 23:30:08,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:08,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-27 23:30:09,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:09,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213584599] [2024-11-27 23:30:09,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213584599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:09,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321717767] [2024-11-27 23:30:09,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:09,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:09,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:09,039 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:09,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:30:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:09,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:30:09,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 23:30:09,611 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:09,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321717767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:09,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:09,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-27 23:30:09,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491612055] [2024-11-27 23:30:09,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:09,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:09,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:09,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:09,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:09,615 INFO L87 Difference]: Start difference. First operand 451 states and 702 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 23:30:09,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:09,761 INFO L93 Difference]: Finished difference Result 893 states and 1394 transitions. [2024-11-27 23:30:09,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:09,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 123 [2024-11-27 23:30:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:09,770 INFO L225 Difference]: With dead ends: 893 [2024-11-27 23:30:09,771 INFO L226 Difference]: Without dead ends: 453 [2024-11-27 23:30:09,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:09,777 INFO L435 NwaCegarLoop]: 577 mSDtfsCounter, 2 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:09,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2297 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:09,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-27 23:30:09,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-11-27 23:30:09,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 356 states have (on average 1.5730337078651686) internal successors, (560), 359 states have internal predecessors, (560), 72 states have call successors, (72), 23 states have call predecessors, (72), 24 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2024-11-27 23:30:09,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 705 transitions. [2024-11-27 23:30:09,824 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 705 transitions. Word has length 123 [2024-11-27 23:30:09,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:09,824 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 705 transitions. [2024-11-27 23:30:09,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 23:30:09,825 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 705 transitions. [2024-11-27 23:30:09,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:30:09,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:09,833 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:09,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:30:10,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:10,035 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:10,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:10,035 INFO L85 PathProgramCache]: Analyzing trace with hash -445033257, now seen corresponding path program 1 times [2024-11-27 23:30:10,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:10,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420898130] [2024-11-27 23:30:10,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:10,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-27 23:30:10,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:10,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420898130] [2024-11-27 23:30:10,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420898130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:10,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355399263] [2024-11-27 23:30:10,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:10,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:10,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:10,361 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:10,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:30:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:10,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:30:10,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:10,890 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 23:30:10,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:10,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355399263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:10,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:10,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-27 23:30:10,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312160811] [2024-11-27 23:30:10,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:10,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:10,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:10,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:10,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:30:10,897 INFO L87 Difference]: Start difference. First operand 453 states and 705 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 23:30:11,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:11,006 INFO L93 Difference]: Finished difference Result 895 states and 1399 transitions. [2024-11-27 23:30:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:11,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2024-11-27 23:30:11,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:11,011 INFO L225 Difference]: With dead ends: 895 [2024-11-27 23:30:11,012 INFO L226 Difference]: Without dead ends: 455 [2024-11-27 23:30:11,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:30:11,015 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 2 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:11,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2283 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:11,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-27 23:30:11,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-27 23:30:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 357 states have (on average 1.5714285714285714) internal successors, (561), 361 states have internal predecessors, (561), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2024-11-27 23:30:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 711 transitions. [2024-11-27 23:30:11,059 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 711 transitions. Word has length 143 [2024-11-27 23:30:11,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:11,060 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 711 transitions. [2024-11-27 23:30:11,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 23:30:11,060 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 711 transitions. [2024-11-27 23:30:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-27 23:30:11,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:11,065 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:11,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:11,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:11,270 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:11,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:11,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1065343939, now seen corresponding path program 1 times [2024-11-27 23:30:11,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:11,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412908955] [2024-11-27 23:30:11,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:11,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-27 23:30:11,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:11,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412908955] [2024-11-27 23:30:11,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412908955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:11,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:11,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:30:11,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819245713] [2024-11-27 23:30:11,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:11,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:11,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:11,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:11,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:11,553 INFO L87 Difference]: Start difference. First operand 455 states and 711 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 23:30:11,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:11,634 INFO L93 Difference]: Finished difference Result 887 states and 1390 transitions. [2024-11-27 23:30:11,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:11,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2024-11-27 23:30:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:11,639 INFO L225 Difference]: With dead ends: 887 [2024-11-27 23:30:11,639 INFO L226 Difference]: Without dead ends: 455 [2024-11-27 23:30:11,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:11,642 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 2 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:11,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2301 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-27 23:30:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-27 23:30:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 357 states have (on average 1.5714285714285714) internal successors, (561), 361 states have internal predecessors, (561), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2024-11-27 23:30:11,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 710 transitions. [2024-11-27 23:30:11,671 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 710 transitions. Word has length 125 [2024-11-27 23:30:11,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:11,671 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 710 transitions. [2024-11-27 23:30:11,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 23:30:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 710 transitions. [2024-11-27 23:30:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 23:30:11,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:11,676 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:11,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:30:11,676 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:11,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:11,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1891310460, now seen corresponding path program 2 times [2024-11-27 23:30:11,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:11,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531966163] [2024-11-27 23:30:11,678 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:11,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:11,720 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:30:11,720 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:11,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:11,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531966163] [2024-11-27 23:30:11,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531966163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:11,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:11,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:30:11,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215674768] [2024-11-27 23:30:11,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:11,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:30:11,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:11,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:30:11,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:11,891 INFO L87 Difference]: Start difference. First operand 455 states and 710 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 23:30:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:11,968 INFO L93 Difference]: Finished difference Result 640 states and 977 transitions. [2024-11-27 23:30:11,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:30:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2024-11-27 23:30:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:11,973 INFO L225 Difference]: With dead ends: 640 [2024-11-27 23:30:11,973 INFO L226 Difference]: Without dead ends: 455 [2024-11-27 23:30:11,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:11,976 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 0 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:11,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3471 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-27 23:30:11,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-27 23:30:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 357 states have (on average 1.5686274509803921) internal successors, (560), 361 states have internal predecessors, (560), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2024-11-27 23:30:12,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 709 transitions. [2024-11-27 23:30:12,004 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 709 transitions. Word has length 126 [2024-11-27 23:30:12,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:12,004 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 709 transitions. [2024-11-27 23:30:12,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 23:30:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 709 transitions. [2024-11-27 23:30:12,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-27 23:30:12,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:12,009 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:12,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:30:12,009 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:12,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:12,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1686148701, now seen corresponding path program 1 times [2024-11-27 23:30:12,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:12,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819887809] [2024-11-27 23:30:12,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:12,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-27 23:30:12,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:12,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819887809] [2024-11-27 23:30:12,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819887809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:12,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:12,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:30:12,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166348272] [2024-11-27 23:30:12,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:12,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:12,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:12,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:12,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:12,271 INFO L87 Difference]: Start difference. First operand 455 states and 709 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-27 23:30:12,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:12,356 INFO L93 Difference]: Finished difference Result 889 states and 1391 transitions. [2024-11-27 23:30:12,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:12,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2024-11-27 23:30:12,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:12,365 INFO L225 Difference]: With dead ends: 889 [2024-11-27 23:30:12,366 INFO L226 Difference]: Without dead ends: 457 [2024-11-27 23:30:12,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:12,368 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 1 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:12,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2300 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:12,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-27 23:30:12,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2024-11-27 23:30:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 358 states have (on average 1.5670391061452513) internal successors, (561), 363 states have internal predecessors, (561), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2024-11-27 23:30:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 712 transitions. [2024-11-27 23:30:12,410 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 712 transitions. Word has length 133 [2024-11-27 23:30:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:12,410 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 712 transitions. [2024-11-27 23:30:12,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-27 23:30:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 712 transitions. [2024-11-27 23:30:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-27 23:30:12,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:12,416 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:12,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:30:12,417 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:12,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:12,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1534659559, now seen corresponding path program 1 times [2024-11-27 23:30:12,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:12,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534143224] [2024-11-27 23:30:12,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:12,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:12,700 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 23:30:12,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:12,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534143224] [2024-11-27 23:30:12,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534143224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:12,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:12,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:30:12,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745670144] [2024-11-27 23:30:12,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:12,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:12,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:12,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:12,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:12,703 INFO L87 Difference]: Start difference. First operand 457 states and 712 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:30:12,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:12,778 INFO L93 Difference]: Finished difference Result 891 states and 1394 transitions. [2024-11-27 23:30:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:12,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-27 23:30:12,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:12,783 INFO L225 Difference]: With dead ends: 891 [2024-11-27 23:30:12,784 INFO L226 Difference]: Without dead ends: 459 [2024-11-27 23:30:12,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:12,786 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 0 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:12,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2293 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:12,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-27 23:30:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 457. [2024-11-27 23:30:12,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 358 states have (on average 1.5670391061452513) internal successors, (561), 363 states have internal predecessors, (561), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2024-11-27 23:30:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 712 transitions. [2024-11-27 23:30:12,820 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 712 transitions. Word has length 153 [2024-11-27 23:30:12,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:12,820 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 712 transitions. [2024-11-27 23:30:12,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:30:12,822 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 712 transitions. [2024-11-27 23:30:12,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-27 23:30:12,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:12,826 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:12,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:30:12,826 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:12,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash 187343127, now seen corresponding path program 1 times [2024-11-27 23:30:12,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:12,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919412263] [2024-11-27 23:30:12,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:12,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:13,110 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-27 23:30:13,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:13,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919412263] [2024-11-27 23:30:13,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919412263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:13,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:13,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:30:13,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272247056] [2024-11-27 23:30:13,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:13,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:30:13,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:13,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:30:13,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:13,113 INFO L87 Difference]: Start difference. First operand 457 states and 712 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:30:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:13,339 INFO L93 Difference]: Finished difference Result 891 states and 1390 transitions. [2024-11-27 23:30:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:30:13,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-27 23:30:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:13,344 INFO L225 Difference]: With dead ends: 891 [2024-11-27 23:30:13,344 INFO L226 Difference]: Without dead ends: 459 [2024-11-27 23:30:13,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:30:13,347 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 7 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3947 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:13,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3947 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:13,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-27 23:30:13,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2024-11-27 23:30:13,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 360 states have (on average 1.5638888888888889) internal successors, (563), 364 states have internal predecessors, (563), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2024-11-27 23:30:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 713 transitions. [2024-11-27 23:30:13,376 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 713 transitions. Word has length 153 [2024-11-27 23:30:13,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:13,376 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 713 transitions. [2024-11-27 23:30:13,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:30:13,377 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 713 transitions. [2024-11-27 23:30:13,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 23:30:13,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:13,381 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:13,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:30:13,381 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:13,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:13,382 INFO L85 PathProgramCache]: Analyzing trace with hash -385373515, now seen corresponding path program 2 times [2024-11-27 23:30:13,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:13,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588998336] [2024-11-27 23:30:13,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:13,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:13,436 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:13,437 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-27 23:30:13,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588998336] [2024-11-27 23:30:13,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588998336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:13,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:13,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:30:13,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75353404] [2024-11-27 23:30:13,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:13,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:30:13,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:13,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:30:13,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:13,653 INFO L87 Difference]: Start difference. First operand 459 states and 713 transitions. Second operand has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:30:13,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:13,796 INFO L93 Difference]: Finished difference Result 891 states and 1394 transitions. [2024-11-27 23:30:13,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:13,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 154 [2024-11-27 23:30:13,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:13,802 INFO L225 Difference]: With dead ends: 891 [2024-11-27 23:30:13,802 INFO L226 Difference]: Without dead ends: 461 [2024-11-27 23:30:13,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:13,805 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 2 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:13,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3428 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-27 23:30:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2024-11-27 23:30:13,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 361 states have (on average 1.5623268698060941) internal successors, (564), 366 states have internal predecessors, (564), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2024-11-27 23:30:13,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 719 transitions. [2024-11-27 23:30:13,835 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 719 transitions. Word has length 154 [2024-11-27 23:30:13,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:13,836 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 719 transitions. [2024-11-27 23:30:13,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:30:13,836 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 719 transitions. [2024-11-27 23:30:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 23:30:13,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:13,840 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:13,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:30:13,841 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:13,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:13,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1864444062, now seen corresponding path program 1 times [2024-11-27 23:30:13,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:13,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906340827] [2024-11-27 23:30:13,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:13,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-27 23:30:14,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:14,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906340827] [2024-11-27 23:30:14,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906340827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:14,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:14,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:30:14,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785201332] [2024-11-27 23:30:14,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:14,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:14,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:14,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:14,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:14,112 INFO L87 Difference]: Start difference. First operand 461 states and 719 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:30:14,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:14,216 INFO L93 Difference]: Finished difference Result 895 states and 1404 transitions. [2024-11-27 23:30:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:14,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-27 23:30:14,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:14,224 INFO L225 Difference]: With dead ends: 895 [2024-11-27 23:30:14,224 INFO L226 Difference]: Without dead ends: 463 [2024-11-27 23:30:14,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:14,227 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 0 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:14,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2279 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-27 23:30:14,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 461. [2024-11-27 23:30:14,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 361 states have (on average 1.5623268698060941) internal successors, (564), 366 states have internal predecessors, (564), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2024-11-27 23:30:14,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 719 transitions. [2024-11-27 23:30:14,259 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 719 transitions. Word has length 155 [2024-11-27 23:30:14,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:14,260 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 719 transitions. [2024-11-27 23:30:14,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:30:14,261 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 719 transitions. [2024-11-27 23:30:14,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 23:30:14,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:14,266 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:14,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:30:14,266 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:14,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1675330604, now seen corresponding path program 1 times [2024-11-27 23:30:14,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:14,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913137775] [2024-11-27 23:30:14,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:14,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:14,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:14,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913137775] [2024-11-27 23:30:14,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913137775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:14,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180254686] [2024-11-27 23:30:14,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:14,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:14,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:14,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:14,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:30:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:14,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:30:14,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:14,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:15,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180254686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:15,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:15,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 23:30:15,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113383531] [2024-11-27 23:30:15,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:15,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:30:15,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:15,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:30:15,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:15,131 INFO L87 Difference]: Start difference. First operand 461 states and 719 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-27 23:30:15,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:15,394 INFO L93 Difference]: Finished difference Result 1090 states and 1760 transitions. [2024-11-27 23:30:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:15,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 136 [2024-11-27 23:30:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:15,403 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 23:30:15,403 INFO L226 Difference]: Without dead ends: 897 [2024-11-27 23:30:15,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:15,406 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 614 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:15,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1649 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:30:15,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-27 23:30:15,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 873. [2024-11-27 23:30:15,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 694 states have (on average 1.6296829971181557) internal successors, (1131), 699 states have internal predecessors, (1131), 151 states have call successors, (151), 24 states have call predecessors, (151), 27 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2024-11-27 23:30:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1454 transitions. [2024-11-27 23:30:15,465 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1454 transitions. Word has length 136 [2024-11-27 23:30:15,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:15,466 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1454 transitions. [2024-11-27 23:30:15,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-27 23:30:15,467 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1454 transitions. [2024-11-27 23:30:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:30:15,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:15,474 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:15,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:15,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd6ebe0e-2340-4313-b25b-b5c96bee3315/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 23:30:15,675 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:15,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:15,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2100369602, now seen corresponding path program 1 times [2024-11-27 23:30:15,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:15,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181153847] [2024-11-27 23:30:15,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:15,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 23:30:15,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:15,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181153847] [2024-11-27 23:30:15,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181153847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:15,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:15,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718926648] [2024-11-27 23:30:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:15,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:15,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:15,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:15,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:15,820 INFO L87 Difference]: Start difference. First operand 873 states and 1454 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:30:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:15,909 INFO L93 Difference]: Finished difference Result 2094 states and 3538 transitions. [2024-11-27 23:30:15,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:15,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2024-11-27 23:30:15,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:15,921 INFO L225 Difference]: With dead ends: 2094 [2024-11-27 23:30:15,921 INFO L226 Difference]: Without dead ends: 1289 [2024-11-27 23:30:15,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:15,926 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 132 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:15,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1179 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-27 23:30:16,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1281. [2024-11-27 23:30:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1023 states have (on average 1.64613880742913) internal successors, (1684), 1028 states have internal predecessors, (1684), 230 states have call successors, (230), 24 states have call predecessors, (230), 27 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2024-11-27 23:30:16,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2175 transitions. [2024-11-27 23:30:16,087 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2175 transitions. Word has length 162 [2024-11-27 23:30:16,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:16,087 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 2175 transitions. [2024-11-27 23:30:16,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:30:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2175 transitions. [2024-11-27 23:30:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 23:30:16,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:16,098 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:16,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:30:16,098 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:16,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:16,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1471082620, now seen corresponding path program 1 times [2024-11-27 23:30:16,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:16,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856856664] [2024-11-27 23:30:16,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:16,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:16,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:16,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856856664] [2024-11-27 23:30:16,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856856664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:16,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:16,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:16,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216495634] [2024-11-27 23:30:16,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:16,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:16,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:16,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:16,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:16,207 INFO L87 Difference]: Start difference. First operand 1281 states and 2175 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:16,333 INFO L93 Difference]: Finished difference Result 3091 states and 5283 transitions. [2024-11-27 23:30:16,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:16,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2024-11-27 23:30:16,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:16,350 INFO L225 Difference]: With dead ends: 3091 [2024-11-27 23:30:16,350 INFO L226 Difference]: Without dead ends: 1929 [2024-11-27 23:30:16,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:16,358 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 130 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:16,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1160 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:16,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-11-27 23:30:16,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1921. [2024-11-27 23:30:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1544 states have (on average 1.657383419689119) internal successors, (2559), 1549 states have internal predecessors, (2559), 349 states have call successors, (349), 24 states have call predecessors, (349), 27 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2024-11-27 23:30:16,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 3288 transitions. [2024-11-27 23:30:16,505 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 3288 transitions. Word has length 144 [2024-11-27 23:30:16,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:16,506 INFO L471 AbstractCegarLoop]: Abstraction has 1921 states and 3288 transitions. [2024-11-27 23:30:16,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:16,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 3288 transitions. [2024-11-27 23:30:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:30:16,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:16,523 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:16,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:30:16,523 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:16,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:16,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1318797668, now seen corresponding path program 1 times [2024-11-27 23:30:16,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:16,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939671620] [2024-11-27 23:30:16,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:16,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 23:30:16,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:16,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939671620] [2024-11-27 23:30:16,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939671620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:16,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:16,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:16,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404533914] [2024-11-27 23:30:16,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:16,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:16,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:16,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:16,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:16,643 INFO L87 Difference]: Start difference. First operand 1921 states and 3288 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:30:16,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:16,798 INFO L93 Difference]: Finished difference Result 4593 states and 7923 transitions. [2024-11-27 23:30:16,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:16,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2024-11-27 23:30:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:16,825 INFO L225 Difference]: With dead ends: 4593 [2024-11-27 23:30:16,825 INFO L226 Difference]: Without dead ends: 2912 [2024-11-27 23:30:16,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:16,836 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 128 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:16,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1157 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:16,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2024-11-27 23:30:17,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2904. [2024-11-27 23:30:17,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2904 states, 2365 states have (on average 1.666384778012685) internal successors, (3941), 2370 states have internal predecessors, (3941), 511 states have call successors, (511), 24 states have call predecessors, (511), 27 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2024-11-27 23:30:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 5010 transitions. [2024-11-27 23:30:17,135 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 5010 transitions. Word has length 164 [2024-11-27 23:30:17,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:17,135 INFO L471 AbstractCegarLoop]: Abstraction has 2904 states and 5010 transitions. [2024-11-27 23:30:17,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:30:17,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 5010 transitions. [2024-11-27 23:30:17,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-27 23:30:17,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:17,166 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:17,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:30:17,167 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:17,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1062544581, now seen corresponding path program 1 times [2024-11-27 23:30:17,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:17,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111479116] [2024-11-27 23:30:17,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:17,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:17,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:17,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111479116] [2024-11-27 23:30:17,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111479116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:17,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:17,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:17,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773221644] [2024-11-27 23:30:17,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:17,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:17,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:17,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:17,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:17,313 INFO L87 Difference]: Start difference. First operand 2904 states and 5010 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:17,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:17,634 INFO L93 Difference]: Finished difference Result 6971 states and 12109 transitions. [2024-11-27 23:30:17,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:17,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 146 [2024-11-27 23:30:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:17,670 INFO L225 Difference]: With dead ends: 6971 [2024-11-27 23:30:17,670 INFO L226 Difference]: Without dead ends: 4504 [2024-11-27 23:30:17,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:17,685 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 126 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:17,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1157 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:17,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4504 states. [2024-11-27 23:30:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4504 to 4496. [2024-11-27 23:30:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 3712 states have (on average 1.6726831896551724) internal successors, (6209), 3717 states have internal predecessors, (6209), 756 states have call successors, (756), 24 states have call predecessors, (756), 27 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2024-11-27 23:30:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 7794 transitions. [2024-11-27 23:30:18,074 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 7794 transitions. Word has length 146 [2024-11-27 23:30:18,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:18,075 INFO L471 AbstractCegarLoop]: Abstraction has 4496 states and 7794 transitions. [2024-11-27 23:30:18,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:18,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 7794 transitions. [2024-11-27 23:30:18,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-27 23:30:18,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:18,108 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:18,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:30:18,109 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:18,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:18,109 INFO L85 PathProgramCache]: Analyzing trace with hash 866257568, now seen corresponding path program 1 times [2024-11-27 23:30:18,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:18,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592695568] [2024-11-27 23:30:18,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:18,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 23:30:18,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:18,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592695568] [2024-11-27 23:30:18,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592695568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:18,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:18,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:18,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421030799] [2024-11-27 23:30:18,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:18,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:18,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:18,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:18,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:18,233 INFO L87 Difference]: Start difference. First operand 4496 states and 7794 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:30:18,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:18,605 INFO L93 Difference]: Finished difference Result 10940 states and 19092 transitions. [2024-11-27 23:30:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:18,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2024-11-27 23:30:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:18,685 INFO L225 Difference]: With dead ends: 10940 [2024-11-27 23:30:18,689 INFO L226 Difference]: Without dead ends: 7182 [2024-11-27 23:30:18,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:18,707 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 124 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:18,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1179 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:18,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7182 states. [2024-11-27 23:30:19,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7182 to 7174. [2024-11-27 23:30:19,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7174 states, 5897 states have (on average 1.6718670510429032) internal successors, (9859), 5902 states have internal predecessors, (9859), 1249 states have call successors, (1249), 24 states have call predecessors, (1249), 27 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2024-11-27 23:30:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 12474 transitions. [2024-11-27 23:30:19,273 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 12474 transitions. Word has length 166 [2024-11-27 23:30:19,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:19,274 INFO L471 AbstractCegarLoop]: Abstraction has 7174 states and 12474 transitions. [2024-11-27 23:30:19,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:30:19,274 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 12474 transitions. [2024-11-27 23:30:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-27 23:30:19,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:19,322 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:19,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:30:19,323 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:19,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:19,323 INFO L85 PathProgramCache]: Analyzing trace with hash 723050231, now seen corresponding path program 1 times [2024-11-27 23:30:19,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:19,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415059716] [2024-11-27 23:30:19,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:19,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:19,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:19,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415059716] [2024-11-27 23:30:19,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415059716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:19,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:19,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:19,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681626031] [2024-11-27 23:30:19,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:19,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:19,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:19,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:19,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:19,475 INFO L87 Difference]: Start difference. First operand 7174 states and 12474 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:19,961 INFO L93 Difference]: Finished difference Result 18142 states and 31732 transitions. [2024-11-27 23:30:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:19,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2024-11-27 23:30:19,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:20,055 INFO L225 Difference]: With dead ends: 18142 [2024-11-27 23:30:20,056 INFO L226 Difference]: Without dead ends: 12067 [2024-11-27 23:30:20,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:20,089 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 122 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:20,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1160 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:20,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12067 states. [2024-11-27 23:30:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12067 to 12059. [2024-11-27 23:30:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12059 states, 9960 states have (on average 1.6721887550200802) internal successors, (16655), 9965 states have internal predecessors, (16655), 2071 states have call successors, (2071), 24 states have call predecessors, (2071), 27 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2024-11-27 23:30:20,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12059 states to 12059 states and 20992 transitions. [2024-11-27 23:30:20,906 INFO L78 Accepts]: Start accepts. Automaton has 12059 states and 20992 transitions. Word has length 148 [2024-11-27 23:30:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:20,907 INFO L471 AbstractCegarLoop]: Abstraction has 12059 states and 20992 transitions. [2024-11-27 23:30:20,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 12059 states and 20992 transitions. [2024-11-27 23:30:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-27 23:30:20,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:20,976 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:20,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:30:20,977 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:20,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:20,977 INFO L85 PathProgramCache]: Analyzing trace with hash 811824014, now seen corresponding path program 1 times [2024-11-27 23:30:20,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:20,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127632927] [2024-11-27 23:30:20,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:20,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 23:30:21,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:21,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127632927] [2024-11-27 23:30:21,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127632927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:21,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:21,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:21,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744862318] [2024-11-27 23:30:21,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:21,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:21,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:21,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:21,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:21,164 INFO L87 Difference]: Start difference. First operand 12059 states and 20992 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:30:22,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:22,078 INFO L93 Difference]: Finished difference Result 28862 states and 50178 transitions. [2024-11-27 23:30:22,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:22,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2024-11-27 23:30:22,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:22,194 INFO L225 Difference]: With dead ends: 28862 [2024-11-27 23:30:22,194 INFO L226 Difference]: Without dead ends: 18854 [2024-11-27 23:30:22,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:22,245 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 120 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:22,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1134 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:22,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18854 states. [2024-11-27 23:30:23,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18854 to 18846. [2024-11-27 23:30:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18846 states, 15544 states have (on average 1.648932063818837) internal successors, (25631), 15549 states have internal predecessors, (25631), 3274 states have call successors, (3274), 24 states have call predecessors, (3274), 27 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2024-11-27 23:30:23,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18846 states to 18846 states and 32518 transitions. [2024-11-27 23:30:23,421 INFO L78 Accepts]: Start accepts. Automaton has 18846 states and 32518 transitions. Word has length 168 [2024-11-27 23:30:23,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:23,422 INFO L471 AbstractCegarLoop]: Abstraction has 18846 states and 32518 transitions. [2024-11-27 23:30:23,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:30:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 18846 states and 32518 transitions. [2024-11-27 23:30:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:30:23,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:23,489 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:23,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:30:23,490 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:23,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:23,491 INFO L85 PathProgramCache]: Analyzing trace with hash -805407594, now seen corresponding path program 1 times [2024-11-27 23:30:23,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:23,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744545917] [2024-11-27 23:30:23,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:23,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:23,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:23,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744545917] [2024-11-27 23:30:23,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744545917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:23,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:23,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:23,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629082170] [2024-11-27 23:30:23,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:23,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:23,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:23,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:23,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:23,688 INFO L87 Difference]: Start difference. First operand 18846 states and 32518 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:24,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:24,835 INFO L93 Difference]: Finished difference Result 49854 states and 86318 transitions. [2024-11-27 23:30:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:24,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2024-11-27 23:30:24,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:25,038 INFO L225 Difference]: With dead ends: 49854 [2024-11-27 23:30:25,038 INFO L226 Difference]: Without dead ends: 33672 [2024-11-27 23:30:25,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:25,107 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 118 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:25,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1160 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:25,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33672 states. [2024-11-27 23:30:27,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33672 to 33664. [2024-11-27 23:30:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33664 states, 27912 states have (on average 1.6455646316996273) internal successors, (45931), 27917 states have internal predecessors, (45931), 5724 states have call successors, (5724), 24 states have call predecessors, (5724), 27 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2024-11-27 23:30:27,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33664 states to 33664 states and 57992 transitions. [2024-11-27 23:30:27,777 INFO L78 Accepts]: Start accepts. Automaton has 33664 states and 57992 transitions. Word has length 150 [2024-11-27 23:30:27,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:27,777 INFO L471 AbstractCegarLoop]: Abstraction has 33664 states and 57992 transitions. [2024-11-27 23:30:27,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:27,778 INFO L276 IsEmpty]: Start isEmpty. Operand 33664 states and 57992 transitions. [2024-11-27 23:30:27,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-27 23:30:27,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:27,871 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:27,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:30:27,871 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:27,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:27,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1485638712, now seen corresponding path program 1 times [2024-11-27 23:30:27,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:27,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247411841] [2024-11-27 23:30:27,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:27,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:27,978 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:27,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:27,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247411841] [2024-11-27 23:30:27,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247411841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:27,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:27,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:27,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413431477] [2024-11-27 23:30:27,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:27,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:27,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:27,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:27,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:27,982 INFO L87 Difference]: Start difference. First operand 33664 states and 57992 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:30,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:30,201 INFO L93 Difference]: Finished difference Result 91891 states and 158745 transitions. [2024-11-27 23:30:30,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:30,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2024-11-27 23:30:30,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:30,844 INFO L225 Difference]: With dead ends: 91891 [2024-11-27 23:30:30,844 INFO L226 Difference]: Without dead ends: 61770 [2024-11-27 23:30:30,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:30,922 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 116 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:30,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1165 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:30,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61770 states. [2024-11-27 23:30:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61770 to 61762. [2024-11-27 23:30:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61762 states, 51497 states have (on average 1.6411247257121775) internal successors, (84513), 51502 states have internal predecessors, (84513), 10237 states have call successors, (10237), 24 states have call predecessors, (10237), 27 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2024-11-27 23:30:34,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61762 states to 61762 states and 106132 transitions. [2024-11-27 23:30:34,565 INFO L78 Accepts]: Start accepts. Automaton has 61762 states and 106132 transitions. Word has length 151 [2024-11-27 23:30:34,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:34,566 INFO L471 AbstractCegarLoop]: Abstraction has 61762 states and 106132 transitions. [2024-11-27 23:30:34,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 61762 states and 106132 transitions. [2024-11-27 23:30:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:30:34,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:34,658 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:34,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:30:34,658 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:34,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1764310922, now seen corresponding path program 1 times [2024-11-27 23:30:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:34,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706889526] [2024-11-27 23:30:34,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:34,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:34,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:34,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706889526] [2024-11-27 23:30:34,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706889526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:34,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:34,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:34,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447993021] [2024-11-27 23:30:34,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:34,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:34,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:34,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:34,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:34,982 INFO L87 Difference]: Start difference. First operand 61762 states and 106132 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:37,874 INFO L93 Difference]: Finished difference Result 115748 states and 199291 transitions. [2024-11-27 23:30:37,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:37,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2024-11-27 23:30:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:38,488 INFO L225 Difference]: With dead ends: 115748 [2024-11-27 23:30:38,488 INFO L226 Difference]: Without dead ends: 115555 [2024-11-27 23:30:38,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:38,540 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 111 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:38,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1174 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:38,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115555 states. [2024-11-27 23:30:43,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115555 to 115547. [2024-11-27 23:30:43,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115547 states, 96914 states have (on average 1.6356357182656789) internal successors, (158516), 96919 states have internal predecessors, (158516), 18605 states have call successors, (18605), 24 states have call predecessors, (18605), 27 states have return successors, (20796), 18603 states have call predecessors, (20796), 18604 states have call successors, (20796) [2024-11-27 23:30:43,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115547 states to 115547 states and 197917 transitions. [2024-11-27 23:30:43,985 INFO L78 Accepts]: Start accepts. Automaton has 115547 states and 197917 transitions. Word has length 152 [2024-11-27 23:30:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:43,985 INFO L471 AbstractCegarLoop]: Abstraction has 115547 states and 197917 transitions. [2024-11-27 23:30:43,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:43,986 INFO L276 IsEmpty]: Start isEmpty. Operand 115547 states and 197917 transitions. [2024-11-27 23:30:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-27 23:30:44,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:44,819 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:44,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:30:44,819 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:44,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:44,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1806485929, now seen corresponding path program 1 times [2024-11-27 23:30:44,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:44,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436243577] [2024-11-27 23:30:44,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:44,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:30:45,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:45,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436243577] [2024-11-27 23:30:45,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436243577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:45,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:45,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:30:45,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748716637] [2024-11-27 23:30:45,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:45,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:30:45,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:45,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:30:45,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:45,152 INFO L87 Difference]: Start difference. First operand 115547 states and 197917 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:49,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:49,093 INFO L93 Difference]: Finished difference Result 115923 states and 198458 transitions. [2024-11-27 23:30:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:30:49,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2024-11-27 23:30:49,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:49,815 INFO L225 Difference]: With dead ends: 115923 [2024-11-27 23:30:49,815 INFO L226 Difference]: Without dead ends: 115738 [2024-11-27 23:30:49,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:30:49,867 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 512 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:49,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 2616 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:30:49,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115738 states. [2024-11-27 23:30:54,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115738 to 115734. [2024-11-27 23:30:54,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115734 states, 97059 states have (on average 1.6353558145045797) internal successors, (158726), 97065 states have internal predecessors, (158726), 18632 states have call successors, (18632), 37 states have call predecessors, (18632), 42 states have return successors, (20828), 18631 states have call predecessors, (20828), 18629 states have call successors, (20828) [2024-11-27 23:30:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115734 states to 115734 states and 198186 transitions. [2024-11-27 23:30:55,932 INFO L78 Accepts]: Start accepts. Automaton has 115734 states and 198186 transitions. Word has length 153 [2024-11-27 23:30:55,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:55,933 INFO L471 AbstractCegarLoop]: Abstraction has 115734 states and 198186 transitions. [2024-11-27 23:30:55,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:30:55,933 INFO L276 IsEmpty]: Start isEmpty. Operand 115734 states and 198186 transitions. [2024-11-27 23:30:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-27 23:30:56,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:56,056 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:56,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:30:56,057 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:56,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1976015336, now seen corresponding path program 1 times [2024-11-27 23:30:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:56,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5479084] [2024-11-27 23:30:56,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:56,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 23:30:56,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:56,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5479084] [2024-11-27 23:30:56,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5479084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:56,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:56,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:30:56,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609847627] [2024-11-27 23:30:56,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:56,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:30:56,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:56,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:30:56,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:56,289 INFO L87 Difference]: Start difference. First operand 115734 states and 198186 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19)